Indoor Air Quality Analysis for Public Building IPU

Indoor air quality analysis

Asthma or allergy like uninfectious Many chronic diseases are directly indoor air quality It is linked to (iaq) degradation . Therefore, for public access buildings (PUBs) to protect public health and safety air quality analysis is becoming increasingly necessary. Various gases can be found indoors in working or living areas. To accurately detect and monitor exposure levels to different gases in PABs, it is important to understand their presence. These gases are emitted mainly due to:

The presence of a chemical pollutant such as benzene or formaldehyde in the exhaust when using building materials such as paint or insulation foams.
Age of the building. Hygiene institutes and indoor air quality studies in workplaces shed light on the negative health effects of substances used in the past.
New high-quality construction standards for insulation and sealing that aim to recycle rather than renew indoor air.

PAB indoor air quality testing: Targeted gases

Carbon dioxide

Carbon dioxide (CO2) occurs naturally in low concentrations in the air; It is colorless, odorless and heavier than air. This gas directly affects human health such as headache and fatigue. When people gather in a poorly ventilated area, such as an office, classroom, or small room in a public building, the amount of carbon dioxide in the air will increase.

Benzene

Benzene, It is the most dangerous indoor air pollutant. Current standards tend to limit its spread in public buildings. The International Agency for Research on Cancer (IARC) classifies benzene as a category 1 (R25) carcinogen. If swallowed or inhaled, this organic compound is also harmful to the respiratory tract – especially the lungs (R65) – and the eyes (R36).

Formaldehyde

Formaldehyde It is highly toxic when inhaled. This irritating gas may cause burns (R34). For a long time, the International Agency for Research on Cancer (IARC) classified formaldehyde as group 3: unclassifiable due to its carcinogenicity. However, after a series of studies in 2005, formaldehyde was eventually classified as a group 1: proven carcinogen.

Perkloretilen

Perchlorethylene, It is a very toxic organic vapor that can be found near dry cleaning facilities. Classified as a 2A (R40) substance by the CIRC, this substance may also irritate the eyes and respiratory tract and cause headaches and dizziness.

⇒ ” IPU STANDARDS AND REGULATIONS See page “

Our solutions for monitoring indoor air quality

Indoor air quality analysis consists of measuring and monitoring exposure levels to certain harmful gases, such as carbon dioxide (CO2), benzene, formaldehyde, or perchlorethylene. Short-term exposure limits and time-weighted average values (STEL and TWA) are established by health and labor government agencies, such as the EPA and OSHA indoor air quality guidelines, and are constantly evolving based on new information regarding these substances.

Haberler

Oil And Gas Industry

Gas Detect – together with partners 3M Gas & Flame Detection, Dräger, Honeywell Analytics and Industrial Scientific – gas detectors (4 gas detectors, area gas monitor, fixed system), optical flame detectors And respiratory protection devices (gas masks, escape respirators, self-rescue masks and self-contained breathing apparatus…)

Portable gas detection for the oil and gas industry

4 gas monitors

This is primary 4 gas detectors and is most commonly used for oil and gas applications; for example, exploration, drilling, refining, storage or transportation. At the same time flammable gases (CH4, VNG, LPG, hydrocarbons, solvents…), hydrogen sulfide (H2S) – a very toxic gas – carbon monoxide (CO) and oxygen Detects (O2) deficiency.

field gas monitor

As an addition to portable gas detectors or for certain situations (offshore platforms, periodic technical shutdown works in refineries), to cover a production or work area field gas monitors Using it provides full monitoring and higher levels of security for employees and infrastructures. In fact, the oil and gas industry is a major user of field gas monitors: these devices are used in production sites around the world.

Fixed detection for the oil and gas industry

flammable gas detector

Flammable gas detectors (for natural gas, hydrocarbons, solvents and alcohols) oil and gas They are the main gas detection systems used in the industry. There are two main detection technologies depending on the targeted gases:

Catalytic sensor: This sensor technology is used for almost any flammable gas. It is very efficient, but its life is shortened as the remaining flammable gas is more or less present.
Infrared absorption sensor: This technology should be chosen for any area of activity where there is a permanent residual presence of flammable gases. This, oil and gas It is the technology to be used for the sector.

open road gas detector

open road gas detector It is particularly suitable for some applications, such as offshore platforms, pipelines or large-scale storage areas. The infrared open path detector detects gases and hydrocarbons and has a range of up to 200 metres. This is an attractive solution because it is easy to implement and cost-effective.

Optical flame detector

The optical flame detector responds to any flame radiation. any fire ignition Designed to quickly stimulate . These devices are therefore particularly adapted to refineries, pipelines, pump stations and are great solutions for filling centres, storage structures or offshore platforms. Spyglass SG50 and Spyglass IR3-H2 flame detectors detect flames invisible to the human eye thanks to the near-infrared video option.

Respiratory protection for the oil and gas industry

Escape mask and self-rescue breathing apparatus

In the presence of different toxic gases emergency evacuation People need to wear escape masks. These respiratory protective units fall into two categories: To ABEK using specific filters air purifying respirators and well-suited for emergency escape in highly toxic or insufficiently oxygenated atmospheres air supply respirators (self-rescue masks).

Self-contained breathing apparatus (SCBA)

breathless for more severe interventions in environments with inadequate oxygenation, toxic or suffocating (significant gas leakage) self-contained breathing apparatus ( SCBA ) must be used.

Haberler

Surface Treatment Gas Detection

Gas related risks, metal surface treatment It is present throughout the entire process: during degreasing, pickling, plating and also during silver, copper, gold or nickel plating. Many chemicals and acid products used can have serious consequences on human health.

Major surface treatment gases and acids

Surface treatment process	Potential gas and matter
Chemical degreasing	Halogenated solvents (methylene chloride, perchloroethylene, trichloroethylene) Halogen-free solvents (toluene, xylene)
Pickling	Highly toxic acids such as chloridric acid, nitric acid or sulfuric acid
Chromating, Passivation	Chromic acid (Chromium 4), sulfuric acid
Phosphating	Phosphoric acid
Metalworking (silver, copper, gold or nickel plating)	Acid and cyanide compounds (primarily hydrogen cyanide)

You can find any information about these gases and acids in our INFORMATION ABOUT GAS section. These pages collect the basic physical and chemical properties of gases, their effects on health, and equipment for protection and detection.

⇒ Adjust gas detection equipment according to the gas. see

Gas detection for surface treatment

Surface treatment fixed gas detector units need to be installed close to processing tanks to measure and control the possible presence of toxic and corrosive gases. Health and safety committees also often require traceability of the air quality of work environments. The installation of these fixed gas detection devices can provide a suitable warning system and also ensure compliance.

Worker respiratory protection for surface treatment

In case of emergency – presence of toxic gas in the working atmosphere – or for short-term work in polluted areas; respiratory protective equipment must wear. Workers often wear a full-face respirator (since most acids irritate the eyes), a powered air-purifying respirator, or even in the case of severe concentrations of toxic gases. a self-contained breathing apparatus They use ( SCBA ).

Surface treatment gas detection solutions

Many chemical, corrosive, especially toxic and sometimes carcinogenic products are used for surface treatment. Recommended here gas detection And respiratory protection You can find our devices.

Haberler

Boiler Room Gas Detection Systems

Most gas boiler room It operates without constant monitoring and a gas leak can go unnoticed. For boiler room gas detection controllers It essentially eliminates these risks by triggering the valve actuators. In case of flammable gas detection (liquefied petroleum gas or natural gas), a controller shuts off the gas supply with a safety solenoid valve (instruments located inside taps with appropriate fittings) located upstream and, if possible, outside the technical room.

Boiler rooms standards and regulations

Gas detection systems in large boiler rooms are subject to certain regulations but common sense dictates that the same recommendations apply to smaller systems, regardless of the sector of activity. Gases lighter than air (e.g. methane – CH4 For CH4– etc. the device must be placed above the burner; For gases heavier than air (such as butane or propane), a multi-gas detector should be placed under the burner.

In gas boiler rooms with high ceilings (higher than 3 meters), an additional gas detector is placed at the highest point of the boiler room (or preferably at the exhaust inlet stream, if present); thus, double detection (burner and ceiling) is achieved regardless of the number of burners (hydrogen or other fuel boilers).

All tools required to operate boiler room equipment are referenced according to applicable standards and regulations. The decree of 23 June 1978 applies to boiler rooms with a capacity of more than 70 kW or 85 kW and boiler rooms with a capacity of up to 2000 kW and less than 2 MW. Page 2910 of the order dated 3 August 2018 establishes new methods by reducing the classification threshold for Installations Classées Protection de l’Environnement to 1 MW. This change makes it mandatory to install a fixed gas detection device in boiler rooms.

Boiler room gas detection: different alarm thresholds

Level 1: 10% or 15% of LEL (lower explosion limit), with alarm notification for rapid response in a hazardous area visual and audio signal
Level 2: Between 20% and 40% of LEL, by manual resetting of the boiler gas valve interruption of gas supply (human intervention required to restart the boiler)
Level 3: Only for the largest gas boiler heating systems. Starting from 60% of LEL, direct action on main LV board and complete shutdown of any power source (except the boiler room gas sensing controller)

Another type of boiler room

Industrial steam boiler room, It is very popular in food, metal, chemical and other industries. At a time when we are looking for a better way to reduce our energy bills, this type of heating meets today's challenges by being more ecological and environmentally friendly. To achieve results, like water and gas consumables It is essential to monitor its evolution. Maintenance and control of the equipment is also essential for the proper operation of the steam boiler. In houses equipped with boilers, carbon monoxide emission risk cannot be ignored.

Gas detectors in boiler rooms

The gas detector inside a boiler room housing several boilers, connected to a central gas detection system, is an important element in worker protection. Daily The use of high-tech detection equipment that requires impact testing is important to the proper functioning of a boiler room. It warns of leaks in gas-fired boiler rooms early and helps protect workers from possible explosions or poisoning. Some for explosive, toxic and refrigerant gases Suitable for ATEX zones such as the OLCT100 fixed gas detector.

The number of devices to be installed depends on the number of boilers, and their location in the building is determined by the risk of leakage. One detector per boiler is preferred, with a central detector at the top, which is lighter than air due to the weight of natural gas, and a device above the heating equipment to trap the gas. The bottom of the system features a ventilation system with fresh air intake, while the top features an air exhaust system to provide continuous air purification even when the burners are turned off.

Maintenance of all tools used in boiler room gas detector is essential. Personnel must be available regularly to perform manual checks, calibrations and preventive maintenance. An explosive meter sensor should be inspected and calibrated periodically. For portable gas detectors, a docking station is ideal for daily crash testing to check that the sensor and cells are working properly.

Components for AIR/GAS lines in boiler rooms

The main (and most effective) form of control in the event of an unexpected gas supply is a device, preferably with automatic or manual reset. gas solenoid valve is to cut off the gas supply using . The power supply of the product passes through the gas detection control unit (fail-safe relay), which shuts down in the event of an alarm as soon as a voltage deficiency is detected. This gas cut-off ensures optimum safety.

gas line accessories Offers advanced protection for solenoid valves. The two basic safety products are block valves, which stop the flow of gas at a certain point, and gas pressure switches, which measure the minimum presence of gas or overpressure. A solenoid valve is an aluminum or brass fitting that opens or closes a circuit by sending an electric current through a magnetic field. They usually have female-to-female connections to standard flanges. This range of tools is diverse and affordable.

The pressure gauge is also a good complement. It measures the pressure of a liquid or gaseous fluid in a heating system. Regular readings of the level are required to detect any problems in the atmosphere .

Dead glass box is an excellent safety accessory that protects the solenoid valve from corrosion.

Haberler

Crystalline Silica – Hazards and Respiratory Protection

Crystalline silica is ubiquitous in various fields of activity, such as construction, quarries, glass works or even foundries. alveolar powder In its form, it poses a real danger to the health of workers when inhaled. Our experts tell you this harmful dust features and to be used will demonstrate respiratory protection equipment.

Dangers of silica

What is crystalline silica?

Silica is an element found in many minerals in different forms, especially in crystalline or amorphous form. Its pure form crystallizes under different temperature and pressure conditions. Among them: quartz , tridymite And cristobalite is found .

Crystalline silica is a common element in the earth's crust. Indeed, sand, granite, concrete, stone, etc. It is also found in many mineral-based construction materials such as. less than 5 micrometers Respirable alveolar powder of crystalline silica (defined by its ability to reach the lung alveoli), having a size smaller than (microns), produced by many professional activities . A real thing when inhaled health hazard creates .

Health effects

Crystalline silica, known It is classified as a human carcinogen (group 1) . Exposure to and inhalation of such dust A lot It may cause health problems:

skin irritations
eye inflammation
bronchitis
emphysema
tuberculosis
immune system damage
autoimmune diseases
lung cancer
silicosis

The fact that this potentially lethal substance is dangerous to the body means that safety precautions must be taken for all exposed persons.

exposure situations

Exposure to crystalline silica dust It is a ubiquitous risk in many areas of activity, especially on construction sites and certain workshops. In France alone, ANSES (French National Agency for Food, Environmental and Occupational Health Safety) estimates that approximately 365,000 workers are affected by exposure to this element in their occupational activities.

Occupational fields affected by crystalline silica risk:

Construction / Building works
stone cutting
Cement production and use
Ceramics and porcelain production
glass works
Dental prosthesis production
Foundry
Plastic production
Mines and quarries

Silica: regulation and prevention

Regulations

Hazards caused by the presence of crystalline silica in many occupational activities strict regulations It leads to . In France and Europe, exposure to this substance is limited by law to certain levels.

Occupational exposure limit value over 8 hours
Crystalline silica :	OEL mg/m3
alveolar quartz dust	0.1mg/m3
alveolar cristobalite dust	0.05mg/m3
alveolar tridymite dust	0.05mg/m3

Additionally, since 1997 crystalline silica has been classified as a carcinogen by IARC (WHO International Agency for Research on Cancer). This classification, and its recognition by various national authorities, allows employers to identify certain CMR agents (carcinogenic, mutagenic or toxic to reproduction) requires regulatory obligations.

Preventing the danger of silica

Dangers of crystalline silica and in the face of applicable regulations, prevention plays an important role in various applications exposed to such respirable dust. This dust in working environments Many arrangements can be made to minimize its formation. Among these collective protection and security measures we note:

wet job
workstations isolation
Use of dust extraction cabinets
mechanization of hazardous work
risk assessment
working atmosphere control
enhanced monitoring of exposed workers
thorough cleaning of exposed areas
Use of PPE (personal protective equipment)
Proper care of PPE used

Finally, in addition to these preventive measures, such as asbestos respiratory protection, concerned persons (employees, workers) need to be systematically informed about the risks posed by the presence of crystalline silica.

Silica protective equipment

Crystalline silica exposure prevention methods should be accompanied by personal protective equipment. respiratory protection mask use and dust jacket Wearing it ensures that exposure to danger is minimized.

Silica respiratory protection mask

In addition to various precautionary measures, to ensure the safety of workers exposed to crystalline silica into fine particles It is also important to wear a specially adapted respiratory protection mask.

GVS Elipse mask

Nowadays ultrafine particles There are very few dust masks that can filter . In fact, most gas mask filter manufacturers offer equipment that filters particles in the 1 to 0.6 micron range. Breathable crystalline silica powder with a diameter of less than 5 microns Since particles up to 0.3 µm are regularly present, these are not filtered out by protective devices. Exposure to such particles requires the use of very high-performance filters.

For this purpose, our experts recommend the use of the GVS Elipse mask with P3 filter.

This respiratory protection mask is ergonomic, easy to use, very comfortable to wear and high precision filters has . GVS mask technology, HESPA® (High Efficiency Synthetic Particulate Air Filter) multilayer pleated filter uses . These P3 filters have a minimum efficiency of 99.95% or greater for 0.3 micron particles. They have a Nominal Protection Factor (PNF) of 40 (reducing dust concentration between the outside and inside of the mask by 40%). These filters are effective up to a maximum of 50 times the OEL. All these features make this mask ideal for protection against alveolar crystalline silica dust.

Powered air-purifying respirators for long-term operation

For operators working in contact with silica for extended periods of time, we recommend using powered air-purifying respirators, which are the most effective way to filter respiratory protection.

CleanSpace Pro, ALL IN ONE It is an electric air purifying respirator. . Without cables and with a motor block located at the base of the neck, the user is protected against fine particles and enjoys complete freedom of movement. It is completely suitable for the construction industry or quarries where workers are in contact with silica dust for long hours. It is innovative, adjusts the airflow according to the user's breathing and has 14 hours of autonomy.

The PureFlo 3000 powered air purifying helmet has an integrated motor and filter inside. It covers the entire respiratory tract, head and face. It is wireless, offering the user ease of use regardless of operating time. HEPA filter Equipped with PureFlo 3000, it effectively protects against aerosols and small particles such as lead or crystalline silica. Therefore it is suitable for the construction, cement and sandblasting industries.

Dust protective suit

To maximize protection against crystalline silica particles dust dress It is also recommended to wear This type of PPE, protective suit or HAZMAT suit, provides a barrier against respirable dust exposure. This is reusable or disposable protection , particle contamination and should be used to prevent them from being carried outside the workplace.

Our expert team recommends wearing an NS Series coverall when silica dust is present. This type 5 and 6 are disposable personal protective equipment, Provides category 3 protection against liquid splashes and dust. Ergonomically designed, this product offers comfort and prevents substances from entering thanks to retractable arms, 2-piece diamond tights and elastic tightening. Suitable for cement and mining industries.

Another form of protective clothing is equally effective in combating fine dust particles and is suitable for workers who come into contact with crystalline silica. The TS series microporous combination features an adhesive tape seal to prevent dust penetration. It is made of polyethylene and fits tightly to the body, offering comfort and ease of movement when working with silica. Stonemasons and construction workers may find it perfect for their applications.

GTC Industrial is at your service for the selection of your chemical clothing and respiratory protection equipment. Feel free to contact us for information or to request a quote.

Haberler

Choosing the Right Fall Protection

Working at heights can have dramatic consequences and requires special skills, especially in terms of safety and standards. Many professionals in companies are exposed to a major risk on a daily basis: falling from a height. Nowadays, the market is filled with many models of fall protection harnesses. From the standard seat belt to the more complete model, which one should you choose for the best protection?

Protection against danger of falling

Once an employee is exposed to the risk of falling, the employer is obliged to identify the risks in order to identify preventive measures to protect the employee. In France, individual protection complements collective protection. Both types of protection are essential and complementary to ensuring a safe working environment. By “collective protection” we mean all fixed installations: floor markings, non-slip floor coverings, installation of handrails, etc. In addition to these devices, Personal Protective Equipment (PPE) is used to ensure worker safety by eliminating or reducing risks at the source. In case of risk of falls, fall protection becomes essential and should be applied regardless of the activity. Fall protection is becoming essential PPE for professionals and companies working at heights (scaffolding, roofs, work platforms, ladders, etc.).
3 basic components of fall protection: fall arrest harness, anchor point, attachment system.

safety belt

A fall arrest harness should be worn during any work at height. It complies with NF EN 361 standard and can be adjusted for every operator thanks to its adjustable straps and buckles. There are many types of harnesses available, each for a different use.

Ports

The attachment point can be fixed (type A) or movable (type B, for example a tripod). For greater safety, it is recommended that the port be located above the user to reduce drop and pendulum effects. It must be able to stop and restrict the operator in case of falling from a height.

Linked fall arrest system

A linkage and/or energy absorption system connects the harness to the anchor point. Attachment and energy absorption systems come in different forms: safety rope, retractable fall arresters, etc…

3 tips for choosing the right fall arrester

Decline factor

When the anchor point is at or above the seat belt anchor point, the operator is safe. However, if an energy absorber is not used when the drop factor is equal to 1, the impact can be severe and range from 900 to 200 daN. When the drop factor is equal to 2, the attachment point is located at or below the operator's feet.

This is the minimum required vertical free fall distance of 6.5 meters without obstacles. This height is calculated as follows: A+B+C+D

A = Total length of fall arrest device used
B = stopping distance according to the fall arrest device used
C = Height from the fall arrest attachment point of the seat belt to the user's feet
D = 1 m safety margin required by the standard

minimum clearance

pendulum effect

Pendulum fall occurs when the user is close to the fall risk zone without being fixed vertically to the anchor point.

The risk of injury increases due to the user's uncontrolled shaking after falling.

Fall arrest safety belts

“Economy” fall arrest harness NUSL1ECO and NUSL2ECO

NUSL ECO harnesses are “entry level” fall arrest harnesses for occasional use or heavily soiled jobs. The NUSL1 ECO harness has only one rear anchor point on a “D” suitable for working on scaffolds or platforms. NUSL2 ECO also has a sternal attachment point on the webbing loops to be attached.

Suitable for the following industries : aerial work platforms, roof, steel construction, construction
Conforms to the following standard : EN 361

Pack & Go fall arrest harness

Pack & GO is a fall arrest harness with integrated carrying bag. It is comfortable to wear and the integrated storage bag makes it particularly practical. It has 2 attachment points: 1 sternal point on a textile buckle and 1 dorsal point on a metal “D”. Complies with EN361 standard (personal protective equipment against falls from height).
Suitable for the following industries : construction, steel construction, scaffolding, aerial work platforms, roofing
Conforms to the following standard : EN 361

Versatile NUS65A fall arrest harness

NUS65A is a versatile fall arrest harness that combines performance, comfort and lightweight. Equipped with automatic buckles and padded leg straps, it easily adapts to all body types thanks to its high-performance adjustment and locking systems. It is a 2-point harness: 1 sternal point on the textile buckles and 1 dorsal point on the metal “D”.
Suitable for the following industries : industry, construction, steel construction, scaffolding, aerial work platforms, roofing
Conforms to the following standards : EN 361, EN 1497

VIT'O fall arrest safety belt

VIT'O fall arrest harness combines performance, comfort and lightness. It easily adapts to all body shapes thanks to its high-performance adjustment and locking systems. The shoulder straps are adjustable from above, and the leg straps and Bavarian belt can be closed with automatic aluminum buckles.
Suitable for the following industries following: steel construction, construction, roofing, aerial work platforms, activities
conforms to standards : EN 361, EN 1497

VIT'O TEC fall arrest safety belt

VIT'O TEC is a fall arrest and rescue harness for use in confined spaces. An extension strap has a back attachment point and a sternum attachment point with two textile buckles for fall arrest and rescue. It also includes a special ergonomic belt for wearing the self-rescue mask.
Suitable for the following industries : sanitation
Conforms to the following standards : EN 361, EN 1497

Ports

There are different anchor points, each with their own type of use. However, all anchors must provide a safe fall arrest system and comply with the EN 795 standard.

Available ports

For the first time in a season, you can be sure that the structure will be built very solidly to support the weight of the user. As is known, the structure can withstand up to 12 kN (approximately 1.2 tons) and can support human maximum impact and/or superior energy up to 600 daN. Anchor point selection can be: lifelines, equine rings, four-leaf clovers, etc…
Choosing the location of the attachment point is also important because it is definitely a risk factor of the parachute for the user.

safety tripod

To make your choice easier, we recommend PPE that complies with the 2016/95 Directive and the EN 795 B standard.

The safety tripod should also be made of reinforced aluminum legs and telescopic construction to allow the operator to adjust the length of the unit.

Most often the tripod comes with a self-retracting fall arrester with rescue winch, lifting winch (optional), cable swivel pulleys under the tripod head, and a carrying bag.

Connecting fall arrest systems

Energy absorbing (EN 355) lanyard (EN 354) is a connection system consisting of a lanyard and two connectors up to 2 m. Elastic lanyards offer extra comfort due to their elasticity. For example, a belt lanyard will be 40% shorter in the retracted position than a standard belt lanyard. The system ensures that the operator's movements are safe and limited around the anchor point.

Retractable fall arresters

Fall arresters are available in different lengths of straps or cables. On the one hand, the strap fall arrester is specifically designed for work at height (AWP, scaffolding, roofing, etc.) with a short attachment length (2 to 5 meters). It is very lightweight and is equipped with a high-density polyethylene rope that can be automatically retracted. On the other hand, the cable fall arrester is heavier and bulkier than the webbing reel. It is equipped with a very strong steel cable and is especially designed for difficult or serious areas such as manholes (risk of cutting) or narrow spaces.

Fall arrest equipment standards

NF EN 354 : Mooring ropes (max. length: 2 m)
NF EN 355: Energy absorbers
NF EN 358: Work positioning systems
NF EN 360 : Automatic fall arrest system
NF EN 361, NF EN 358, NF EN 813, NF EN 1497: Full fall arrest safety belts
NF EN 362: Connectors
NF EN 795 : Anchor points (type B)

Good to know this:

The manufacturer's instructions are mandatory and must be written in French
The regulatory “CE” marking must be affixed to every product
Instructions must include a reference to Regulation (EU) 2016/425
harnesses should be checked every 12 months

You must protect yourself!

When you know that 10% of work accidents in France are caused by falls from height, protection becomes and should be a priority. Don't neglect other PPE such as safety shoes, helmets and protective gloves. These can always protect you. Security is priceless and should not be taken lightly. a deliberate
No pun intended, but don't fall off the train and choose the equipment that best suits your needs!

Haberler

Biogas Analyzer For Waste Management And Recycling

biogas production – through plants or digesters – and recycling is encouraged, but biogas remains a factor in global warming. These production, purification and evaluation processes are therefore with biogas monitoring devices requires appropriate control and follow-up. Fixed and/or portable equipment for the safety of employees in power plants, treatment and production centers biogas analyzers are required.

Biogas composition and its effects on health

Biogas consists of various gases with different properties. These include methane ( CH4 ), the primary gas that makes up 50% to 70% of biogas; This is a flammable gas used primarily in power plants (gas turbine). Biogas also contains hydrogen sulfide (H2S), a poisonous gas, and carbon dioxide, an asphyxiating gas.

It consists of (CO2) and water vapor (H2O). Since it consists mostly of methane, biogas is primarily It is a flammable and flammable gas. . Due to the presence of hydrogen sulfide, it is also is poisonous and corrosive . Anaerobic fermentation can cause discomfort to humans. It also refers to bacteria and particles. Therefore, the presence of biogas must be measured and monitored continuously ; usually a ; usually a

Brief exposure to high concentrations does not cause death. Symptoms of this type of exposure include respiratory and eye irritation. In case of chronic exposure, organ failure affecting the digestive system (abdominal pain) and the brain (chronic fatigue) may occur.

Effects on health

Since biogas consists mainly of methane flammable is a gas. It is also toxic and corrosive due to the presence of hydrogen sulfide .
Anaerobic fermentation fermentation can also cause discomfort to humans. produces bacteria and suspended particles.

Brief exposure to high concentrations does not cause death. Symptoms associated with such exposure include respiratory irritation and eye conjunctivitis).
In case of chronic exposure, some organ failures such as digestive system (abdominal pain) and brain (chronic fatigue) have been observed. It is therefore essential to use gas detection devices such as a biogas analyzer and to wear appropriate respiratory protection equipment.

Biogas detectors and analyzers

Biogas analyzer (fixed or portable)

Biogas is suitable for cogeneration, which means the combined production of heat and electricity. Gas turbines will need to adapt to the biogas composition, as its properties may vary. A biogas analyzer (fixed or portable) measures and controls this gas quality for optimum performance.

Biogas detector and field gas monitoring device

Due to the different gases present in the composition of biogas, the most commonly used personal protective equipment (PPE) is the 4-gas detector (CH4, O2, CO and H2S). However, CH4, O2 , CO, CO2 and H2S sensors It is more relevant to use a multi-gas detector with. In addition to portable gas detectors, field gas monitors It will provide monitoring in the entire production area.

Portable gas detectors and biogas analyzers

A complete solution for the monitoring and analysis of methane, carbon dioxide and hydrogen sulfide. A complete solution for the monitoring and analysis of methane, carbon dioxide and hydrogen sulfide. range . For the protection of surrounding teams, a full portable gas detector range……

Haberler

Covid-19 And CO2 Monitors

At the beginning of the school year, faced with the coronavirus and its aerosol mode of transmission, CO2 monitoring and especially in schools, offices and all occupied spaces and especially in schools, officesdCO2 covid sensor is proving to be an effective solution. Measurement of carbon dioxide in occupied indoor spaces, in ambient air and in all occupied spaces the presence of polluting aerosols It makes it possible to evaluate and ventilate a room accordingly. The GTC Industrial team, experts in gas detection, examines this type of monitoring equipment and offers the ideal solutions for occupied spaces: CO2 detection column And indoor air quality CO2 sensor .

Why should we measure carbon dioxide in a room?

CO2 and indoor air quality

For example, the presence of carbon dioxide in a full room of a school, office or administration is normal. This gas is naturally released by the human body. Because, the more people in a room, the greater the concentration of CO2 in the ambient air and reduces indoor air quality. At the same time, certain activities, such as singing or physical activity, also increase the gas concentration level.

Although this does not depend on the presence of gas, indoor air quality (IAQ) can be conveniently measured by measuring the CO2 concentration in a room . Measuring this gas is the easiest way to understand the air quality in a room and evaluate the quality of ventilation. When the concentration is very high (above 1000 ppm) indoor air is not considered healthy. Then the room should be ventilated (window opening, ventilation, etc.).

Dangers of carbon dioxide

Sınıf, ofis veya toplantı odası gibi yoğun bir kapalı alan doğal olarak bir CO2 konsantrasyonu içerir. Ancak, ortam havasında bu gazın 2000 ppm’den fazla olması durumunda, karbondioksitin sağlık üzerinde anında zararlı etkileri vardır:

Decreased mental abilities (difficulty concentrating and making decisions, etc.)
Physiological disorders (headache, increased respiratory rate, watery eyes, tremors, sweating, etc.)

Therefore, in a closed room Health effects from carbon dioxide and poor air quality are significant . In addition to these reasons, monitoring CO2 in ambient air is also proving useful in the fight against coronavirus.

Against coronavirus: CO2 measurement in a closed area

Covid-19 aerosols and CO2

Covid-19 is transmitted in 3 different ways: by spread of droplets, direct or indirect contact and aerosols. Aerosols are particles that are released into the ambient air when a person breathes or speaks. They are very fine droplets (less than one micron in diameter). of these particles several hours in the ambient air of a room There is a high probability of it hanging. They pose a contamination risk when the person spreading them becomes contaminated with the SARS-CoV-2 virus.

There is a high probability of it hanging. Since humans emit aerosols just as they emit carbon dioxide, the CO2 air quality indicator can be used to determine the presence of pathogens in a room. Therefore, high target gas concentrations pose a contamination risk when a person is contaminated with the SARS-CoV-2 virus. presence of aerosols implies (whether or not it is contaminated with Covid-19).

Carbon dioxide monitoring to reduce the risk of Covid-19

Covid-19 aerosol contamination Health authorities, faced with monitoring ensure good ventilation in occupied rooms advocates and presents it as the first line of defense against the virus. Because CO2 monitoring as an indicator of indoor air quality, determine ventilation needs It is the perfect solution for .

A continuously operating carbon dioxide detector in an occupied area A continuously operating carbon dioxide detector in an occupied area It will help. When the gas concentration becomes too high, the detector signals danger to the occupants of the room (acoustic and/or visual light alarm, depending on the selected device). The room should be ventilated by opening windows, doors or activating a ventilation cycle. Refreshing the air of the room discharging aerosols It will then ensure that the risk of Covid-19 contamination is lower.

CO2 detector for schools, offices and occupied spaces

Many carbon dioxide detectors on the market are extremely complex. Between a portable CO2 detector, a fixed detector, different sensor types and different measuring ranges, choosing, using and maintaining a gas monitor for a classroom, a business, an office or different rooms can be particularly challenging. With a clear need for carbon dioxide monitoring for indoors Faced with each other, two pieces of equipment stand out as efficient solutions: the CO2 detection column on one side and the CO2 sensor for monitoring indoor air quality on the other.

CO2 COVID sensor and air quality analyzer

Easy to use and highly intuitive, the HTRAM CO2 sensor (transmission risk air monitor) monitors indoor air quality by displaying the carbon dioxide level, temperature and relative humidity (hygrometry) in the room.

This air quality analyzer CO2 level It has a display, an integrated audible alarm and a color display (red, yellow, green) to indicate the level of contamination risk. This device is complete, discreet, practical and inexpensive. It runs on batteries for 10 hours (can be charged via USB plug) and can therefore be easily moved from one room to another. This air quality analysis equipment is used to identify contamination risks And It is undoubtedly the preferred ally for ventilating a room, office or classroom.

A CO2 light column

The Werma CO2 detector column is a measuring device in the form of an LED traffic light. Gas concentration in the ambient air in the tower indicated by different LEDs:

LED column signals

LED color	carbon dioxide concentration	Action
Green	less than 1000 ppm
Yellow	Between 1000 and 2000 ppm	ventilation required
Red	more than 2000 ppm	ventilation requirement
flashing red	more than 3000 ppm	ventilation requirement, health risk

Use of this CO2 monitoring device in the context of the Covid-19 pandemic Use of this CO2 monitoring device in the context of the Covid-19 pandemic With infrared CO2 sensor Thanks to this integrated visual warning device, the air renewal quality of a room is easily addressed and Risk of contamination from viruses such as SARS-CoV-2 is reduced . Indoors, the installation of this equipment associated with social distancing, N95 or FFP2 masks, ideally FFP3 masks against Covid-19, will provide maximum protection against the virus.

These equipment are now used in schools , public spaces , local government areas and even used successfully in many public areas such as Covid-19 screening and vaccination centres.

A simple CO2 detector for occupied spaces

The effectiveness of the Werma CO2 detection column depends not only on the simplicity of its bright display. Actually, In order to adapt as best as possible to all audiences and locations affected by the indoor air quality problem, this equipment maximum performance and simplicity Designed for .

CO2 monitoring column, integrated and with pre-calibrated infrared sensor comes together. The device is ready for immediate use, all you have to do is plug it into a regular electrical outlet. Ideally placed in the middle of the room at a height of less than 2 meters, it very clearly shows the constant concentration of carbon dioxide and the need for ventilation when necessary.

This is ready to use for IAQ CO2 monitoring and signaling device occupies the equivalent of a class . Installing several detectors will check the carbon dioxide concentration level in larger areas such as shops, gyms, warehouses or open offices.

Haberler

Why Are Refrigerant Leaks Detected?

Refrigerant leak detectors Its use makes it possible to protect against refrigerant hazards, while at the same time ensuring the proper operation of equipment, its productivity and reducing the operating costs of cold production facilities. Leak detection, and more generally the control of refrigerants, responds to a variety of challenges in all areas of the refrigeration industry.

Refrigerant leak detection for safety

Danger of leaking refrigerants

There are many refrigerants classified into different types: the former freon CFC and HCFC gases (R12, R123, etc.), the most common HFCs and HFOs (R32, R410a, R1234yf, etc.) and natural refrigerants (CO2, NH3). , hydrocarbons). All these gases used for cold production are dangerous. For refrigerant leak, healthcare and infrastructures potentially hazardous gas concentration levels leads to .

The main dangers of refrigerant leaks are:

Suffocation : Many refrigerants are heavier than air. When a refrigerant leak occurs, gas replaces breathable air in a closed, unventilated space. At certain concentration levels, anyone present is exposed to a variety of health effects that can lead to death by asphyxiation.
Fire and explosion: Some refrigerants, such as ammonia and propane, are flammable and explosive when in contact with an ignition source. The use of pressurized coolers also poses a risk of explosion.

In the face of suffocating, flammable and explosive gases, refrigerant and freon leak detection helps ensure everyone's safety. Monitoring for leaks and the presence of refrigerant gas in air-conditioned environments, near refrigerated racks, refrigerated warehouses, cold rooms, etc. It makes it possible to prevent hazardous exposure of staff, stakeholders, customers, visitors and the public. Installation of refrigerant leak detection systems It also contributes to ensuring the safety of refrigeration plants and infrastructures.

Environmental impact of refrigerant

While natural refrigerants, hydrocarbons (HC) and some HFOs are not very polluting, HFC, CFC and HCFC gases are particularly hazardous to the ozone layer. Environmental impact of refrigerant leaks, This requires monitoring and controlling the use of gases. Leak detection in all refrigeration plants immediately treats gas leaks as soon as they are detected, thus reducing emissions to the atmosphere. helps reduce emissions.

Leaking refrigerant: a loss of efficiency

Any refrigerant leak in the cold production installation, service or production interruption may cause . All refrigeration equipment is designed to operate optimally with a precise refrigerant charge. Underloading caused by refrigerant leaks from the device or the cold circuit immediately leads to malfunction and energy overconsumption. Leakage may also cause potential personal injury.

Low loading of cold production equipment therefore, it may result in a decrease in productivity and a general shutdown of the device, which may result in loss of production or service. Whether it is an air conditioning malfunction or an interruption in the cold system in a warehouse or process plant, the use of a detector or a complete refrigerant detection system provides insight and interfering with upstream makes it possible.

Detect refrigerant leaks to reduce costs

Reduce refrigerant cost

Refrigerant leakage, which is not an unusual occurrence in any circuit, replacement and refilling of refrigerant requires .

These additional operating expenses are not insignificant. On a supermarket scale, on average each year 20% to 25% of refrigerant is lost due to leaks It is estimated.

Considering the price factor (increasingly higher for the most polluting fluids), installing a detection system and a refrigerant leak management protocol provides real financial gains by reducing refrigerant purchases.

Reduce energy consumption

For example, a common situation, especially in the commercial refrigeration industry, is a refrigerant leak in an installation. 10% to 45% more power consumption in cooling equipment is to lead.

Energy overconsumption is not very costly and trivial at the scale of supermarkets, air-conditioned areas or large refrigeration plants.

Control of cold equipment using refrigerant detection devices, both by charging energy excess It ensures both prevention and immediate maintenance of the equipment when a leak is detected.

Compliance with regulations

National and international regulations regulate the use of refrigerants. These regulations aim to control and reduce the environmental impact of these gases. Because, checking for refrigerant leaks It is a necessity in many countries. In France, failure to comply with refrigeration regulations can result in imprisonment of up to 2 years and a fine of 75,000 euros.

In most cases, compliance with these instructions, equipment operation and periodic regulatory leak checks It is facilitated by the use of refrigerant detection systems for .

It is facilitated by the use of refrigerant detection systems for .

Various measuring and monitoring devices make it possible to control the correct operation of refrigeration equipment. In all areas of the refrigeration industry refrigerant leak detection provided by portable gas detectors and fixed installations.

Portable refrigerant leak detectors

Different models of portable gas detectors has . In the context of refrigerant use, the most commonly used portable equipment is leak detectors. These detectors are dedicated to the detection of refrigerants, such as the Tru Pointe IR refrigerant leak detector . They usually include a flexible probe to perform checks and long battery life.

Leak detection, It can also be performed using the PGM IR refrigerant leak analyzer (GD connection), which offers unmatched performance with a 1ppm detection threshold. this device , a refrigerant circuit Ideal for controlling refrigerated racks and installations of all sizes with great precision.

Conventional portable single gas detector natural refrigerants Available for use. A portable CO2 detector is actually used in facilities containing carbon dioxide. PPE (personal protective equipment) olarak kullanılabilir . Bu cihazlar örneğin Covid-19 aşılarının soğutulmuş taşınmasında CO2 tehlikesine karşı kullanılır .

In facilities operating with natural refrigerants and hydrocarbons such as propane, butane, isobutane and ammonia Workers can also be equipped with flammable gas detectors to ensure their safety.

Fixed refrigerant detection systems

A fixed freon detection system Its installation enables continuous monitoring of any cold production facility. Installation of fixed gas detectors is sometimes even meets obligations arising from refrigerant regulations .

Constant detection of refrigerant leaks, It is performed by one or more fixed detectors connected to a gas detection controller. This control unit acts as the brains of the system and triggers alarms as well as servo controls such as ventilation systems and remote alarm signals.

Some fixed equipment, such as the MGS 450 refrigerant detector, can be used as stand-alone equipment. They have an integrated audible and visual alarm signal to alert you in case of danger, without the need for a controller connection.

air conditioned An indoor space, a home, hotel room and any public space can be equipped with an air conditioner gas leak detector . Discreet and easy to use, a type of device such as the MVR 300 detector provides continuous monitoring and triggers an alarm when a refrigerant leak occurs.

GTC Industrial supplies and distributes a wide range of Bacharach refrigerant leak detectors, DEGA and Oldham monitors for all your refrigeration applications. Don't hesitate to contact us.

Practical guide to refrigerant detection

GTC Industrial team A practical guide to refrigerant detection created . In this white paper you can find all the information and equipment available to control refrigerants in all your cold applications:

Haberler

Battery Room And Hydrogen: Hazards And Gas Detectors

Use of electric forklifts, stackers and pallet trucks, It causes the release of hydrogen gas while charging its batteries. For the safety of nearby people and infrastructure, a charging room explosive atmospheres It must be equipped with a gas detection system for . GTC Industrial team, which is regularly called for this problem in many sectors, danger of hydrogen in battery rooms examines and offers special solutions.

Hydrogen in battery chambers

Hydrogen emissions in battery charging rooms

Batteries of electric cars and trolleys A battery room designed for charging is a potentially hazardous area. Indeed, charging batteries (especially those made of lead-acid) releases a dangerous gas: hydrogen .

When charging an electric car battery, chemical reactions take effect over a period of 6 to 8 hours. Hydrogen emissions It is mainly revealed at the end of this period. Depending on the equipment, the power of the batteries and charger, and the charging environment, this process particularly dangerous concentrations of hydrogen gas in a charging chamber can create .

Today, the vast majority of logistics centers, handling centers and many manufacturing facilities use all kinds of electric cars (forklifts, motor stackers, pallet trucks, etc.). In large fleet configurations, A dedicated battery charging room is a must And Risks caused by hydrogen battery release should not be ignored .

Battery hydrogen dangers

Explosive in air between 4.1% and 74.8% by volume in a battery room, hydrogen reacts with oxygen in the ambient air. It is likely to explode or cause fire. For example, when charging a forklift battery, risk of explosion, It is the most significant danger to those present and to the logistics or production infrastructure. Indeed, mismanagement of hydrogen concentrations generated when charging batteries has led to deaths and the destruction of production facilities in the past.

Hydrogen H2 – CAS 1333-74-0 – also known as dihydrogen, with various gases in the air (oksijen, halojenler ve oksidanlar dahil) reaksiyona giren çok uçucu, yanıcı ve patlayıcı bir gazdır. Ayrıca, bu gazın patlayıcı ve yanıcı reaksiyonları metal katalizörlerin varlığında artar.

It is a very volatile, flammable and explosive gas that reacts with gases (including oxygen, halogens and oxidants). Moreover, the explosive and flammable reactions of this gas are enhanced in the presence of metal catalysts. Breathing hydrogen in a battery chamber personnel may experience various health effects (headache, dizziness, suffocation).

Explosion and fire hazards caused by hydrogen, Safety precautions in the battery charging room makes its implementation mandatory.

How to secure a battery room

Regulation: Battery room safety requirements

Securing a battery charging room The regulations set out numerous measures for . The order dated May 29, 2000 and Decree No. 2006-646 dated May 31, 2006 regulate the use of lead-acid batteries. A special battery room is mandatory for charging lead-acid batteries of electric cars and cars with a direct current power of 50 kW onwards. . This regulatory obligation is the first safety requirement against hydrogen emissions, fire and explosion hazards.

Regulations for the charging room also include eyewash, acid holding tank, hazardous area indicator, fire extinguishers, fireproof floor, waterproof coating for dirty water, fire doors and IP55l lighting. It also requires safety design and equipment.

Safety regulations also limit the presence of hydrogen to 1% of the volume of the battery chamber. Requires the presence of mechanical ventilation. In addition to this requirement, in the event of a ventilation failure automatic shutdown of chargers It is mandatory. Finally, there is a button to activate ventilation and stop battery charging urgently. hydrogen measuring unit must exist.

Additionally, to ensure everyone's safety, personnel working in or near the battery room must be authorized to intervene and must be trained on potential hazards.

In compliance with ATEX standards and regulations, a charging room for electric cars must have an ATEX classification (zone 1 or 2). ATEX zoning requires maximum precautions an explosive atmosphere expresses its existence. In logistics, handling or manufacturing environments, a battery room situation with concentrations of hydrogen in the air is a ATEX zone creates .

Minimizing explosion risks All equipment brought and operated in an ATEX classified area must be approved for . Therefore, for example, a battery charging room must be equipped with an ATEX-certified mechanical ventilation and gas detection system.

ATEX battery room

Hydrogen detection system for battery rooms

A hydrogen detection system in a battery room to ensure personnel and infrastructure safety Installation is essential. The presence of hydrogen detectors and a gas control unit is also required by regulations governing the use of batteries.

Battery room hydrogen detector

Measurement of gas concentrations in a battery room, with an ATEX fixed hydrogen detector It can be accomplished with . These devices, such as the OLC and OLCT 100 detectors are ATEX approved and fit perfectly into a battery charging room. This Oldham Simtronics Teledyne gas detection equipment, constantly monitors the level of hydrogen concentration . The measurement will be performed in %LEL (explosiveness) using a gas detection catalytic sensor. The battery room fixed gas detector can be connected to a control unit via a 4-20 mA linear output or a Wheatstone bridge output. The number of detectors to be installed depends on the size of the area to be covered. This equipment is suitable for the volatility of H2 gas. It must be installed at a certain height.

Among the fixed gas detectors, the Spyglass SG50 optical flame detector can visualize hydrogen fires with its near-infrared video option, while the Spyglass IR3-H2 flame detector can detect hydrogen up to 30 meters.

gas detection controller, main control for battery room safety performs the task. The Oldham MX32 controller is ATEX equipment perfectly suited for hydrogen monitoring in battery charging rooms.

The fixed gas detection system is based on simple operations. The hydrogen concentration formed by charging the batteries of forklifts and electric stackers is transmitted to the control unit by detectors. Measurement centralization in the device is then to constantly monitor makes it possible. The gas controller connected to the various servo controls automatically operates them according to the gas concentration level.

gas detection controller

Electric forklift battery room In this case, the gas detection controller can be placed outside the room. In accordance with the regulations in force, it will monitor the gas level and immediately stop charging the batteries in the event of a dangerous concentration of hydrogen. Likewise, in the event of a ventilation failure, charging will be interrupted. At the same time, to achieve an optimum level of safety, the gas controller alarmlar ve ışık sinyalleri can be connected.

In addition to a portable hydrogen gas detector

In addition to the fixed hydrogen monitoring installation, maintenance or fire safety departments may use a portable gas detector (such as the portable 4 gas detector ). When dealing with battery rooms, portable gas monitors make an invaluable addition in the event of an alarm to eliminate any doubt. Very affordable devices are available as explosive flammable gas monitors (0-100% LEL H2), such as Dräger's Xam2500-EXPLO flammable gas detector.

Our GTC Industrial experts are available to help you choose your hydrogen detection equipment for your battery charging room. Our teams support you in your equipment selection and install your equipment anywhere in France.