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Benzene – C6H6

This page presents information on benzene (C6H6): properties, toxicity, effects on health, appropriate detection means – personal benzene monitor or fixed benzene gas detector – and proper respiratory protective equipment (gas mask or powered air purifying respirator with an A gas filter).

benzene gas detector and benzene respiratory protection for better safety

Benzene properties

Benzene (C6H6) is a volatile organic compound from monocyclic aromatic hydrocarbons. It composes fuels at 1%, particularly unleaded gasoline. It is also applied in other sectors like perfumeries as a solvent or in chemical industries as a synthesis intermediate for a large range of chemical products (rubber, solvent, food additives).

CAS TWA (8 hours) STEL (15 minutes) LEL IP Density / Air Filter / Air
71-43-2 1.0 ppm 5.0 ppm 1.2 % 9.24 eV 2.7 A

Benzene effects on health

The IARC* classified benzene as a category 1 carcinogenic agent (R45/49). This substance may also cause heritable genetic damage (R46). When ingested or inhaled, this organic compound is harmful to the breathing tracts – particularly dangerous for lungs (R65) but also for the eyes (R36) as well. In case of prolonged exposure, ingestion, inhalation or contact with the skin, benzene can lead to severe consequences on health (R48/23/24/25).

 
*IARC: International Agency for Research on Cancer (depends on WHO World Health Organization)

Benzene effects on health - C6H6 exposure and toxicity chart

Benzene effects on health (C6H6)

Benzene gas detector ( C6H6 )

Despite being detectable through smell, only a benzene monitor can accurately measure concentrations of this gas. Moreover, even if benzene is explosive at 1.2 % volume, LEL detection would be pointless with this highly toxic gas. Ppb or ppm benzene detection is more relevant.

The Radius BZ1 is a high performance area gas monitor. As it is made with rough materials, it suits in the most demanding ATEX standards and the harshest environments.

  • Industrial scientific area gas monitor Radius BZ1 for workers safety
  • Detection of combustible gases, Cl2, CO, H2, H2S, HCN, NH3, NO2, O2, SO2 and VOC.
  • Duplicate 108 dB audible alarm and red & blue LED visual alarm
  • Runtime: 168 hours without pump (7 days) and 84 hours with pump
  • Dimensions: 29 x 29 x 55 cm – weight 7.5 kg – 11.2 cm LCD display
  • Available with optional LENS wireless technology
  • Additional information
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Area gas monitor – RADIUS BZ1

The Radius BZ1 is a high performance area gas monitor. As it is made with rough materials, it suits in the most demanding ATEX standards and the harshest environments.

Industrial scientific area gas monitor Radius BZ1 for workers safety
  • Detection of combustible gases, Cl2, CO, H2, H2S, HCN, NH3, NO2, O2, SO2 and VOC.
  • Duplicate 108 dB audible alarm and red & blue LED visual alarm
  • Runtime: 168 hours without pump (7 days) and 84 hours with pump
  • Dimensions: 29 x 29 x 55 cm – weight 7.5 kg – 11.2 cm LCD display
  • Available with optional LENS wireless technology
Additional information

Designed in an impact and weather-resistant polycarbonate alloys housing, the Radius BZ1 area gas monitor is an extremely flexible solution to monitor a clearly defined area or a confined space. Moreover, the Radius BZ1 area gas monitor is equipped with the DualSense technology and is available with optional LENS Wireless technology.

 

DualSense technology uses two sensors of the same type to determine the concentration of a target gas in the atmosphere and reduce the risk of instrument failure while improving gas reading accuracy.

 

LENS is the first wireless gas detection solution that allows personal monitors and area monitors to communicate gas readings and alarms with one another. Thanks to the 360-degree gas path and all-weather sensor use, the Radius BZ1 area monitor can accurately detect gases regardless of environmental conditions and avoid false alarms.

 

The special nature of this gas detection area monitoring device lies in its SafeCore® module. This unit concentrates every critical technology pieces such as software, pumps and sensors. this module can be easily removed to be placed in any base in order to have a smaller fleet of instruments, easily dock it on a socking station – to download data logs and alarm events, bump test, calibrate and change settings – or to adapt each configuration to changin environment.

 

In case of anormal concentrations, powerful audible (108 dB at 1 m) and visual (ultra-bright blue and red lights) alarms will alert any operator working in the area, even in high-noise and dark environments. Custom alarm action messages like “EVACUATE” or “VENTILATE” can furthermore be configured in case of emergency situations in order to quickly and safely take corrective actions.

 

Lastly, the Radius BZ1 area gas monitor is equipped with a long-duration battery with 7 days (1168 hours) or typical runtime. An optional external extended battery can extend it over one month.

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The MX6-VOC accurately measures presence of volatile organic compounds (VOC) in ambient air using a 10.6 eV PID photoionization lamp from 0 to 2,000 ppm in 0.1 ppm increment.

  • Portable gas detector MX6-VOC
  • Detection of many VOCs from 0 to 2,000 ppm
  • Serial sampling pump for remote samples
  • STN color LCD graphic display
  • User-friendly menu for easy access
  • Certifications: IECEx/ATEX : EEx ia d IIC T4
  • Additional information
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VOC detector MX6 volatile organic compounds

The MX6-VOC accurately measures presence of volatile organic compounds (VOC) in ambient air using a 10.6 eV PID photoionization lamp from 0 to 2,000 ppm in 0.1 ppm increment.

Portable gas detector MX6-VOC
  • Detection of many VOCs from 0 to 2,000 ppm
  • Serial sampling pump for remote samples
  • STN color LCD graphic display
  • User-friendly menu for easy access
  • Certifications: IECEx/ATEX : EEx ia d IIC T4
Additional information

Volatile organic compounds – most commonly known as VOCs - gather thousands of substances and gases. They can be found in many fields of activity. The MX6-VOC gas detector is a classic single-gas detector especially designed to detect these substances. Thanks to its ion-lithium rechargeable battery, it can operate during 12 hours according to the application.

The MX6-VOC gas detector needs to be calibrated twice a year in order to ensure proper operation. The photoionization sensor (sensor technology for VOC detection) can detect volatile organic compounds with a ionization potential below 10.6 eV. The MX6-VOC measuring range is set between 0 and 2,000 ppm in 0.1 ppm increment.

An integrated gas sampling pump guarantees measurements accuracy. This pump also enables to draw remote samples before intervention. According to the configuration, it is possible to add up to 5 more gases to the MX6-VOC.

This VOC detector features 3 different alarms. The powerful audible alarm is designed to alert even in noisy environments. The high visibility red LED visual alarm and a vibrating alarm are also made to ensure a high level of protection.

Its large colored screen displays concentrations in ppm (part per million) or in percentage volume. Digital values can be replaced visually thanks to the user-friendly menu.

The MX6-VOC gas detector is impact-resistant thanks to an over-molded polycarbonate housing. This monitor meets almost any EU current gas detection related standards.

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Featuring PID technology (photo-ionization sensor) and designed for organic vapor detection, the CUB COV detector (for volatile organic compound) offers ppb or ppm VOC and TAC (total aromatic compound) measurements.

  • volatile organic compounds detector for VOC monitoring
  • Ultra-light, discrete, robust and easy to use
  • High sensitivity measurement (from 0.001 ppm depending on the version) and high reactivity (less than 5 seconds)
  • Alarm levels triggered by concentration levels (86 dB audible alarm, LED and vibrating alarm)
  • Data-logging
  • ATEX, CE, IECEx, China, USA and Canada (class I, II, III, Division I) approved
  • Additional information
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VOC detector CUB

Featuring PID technology (photo-ionization sensor) and designed for organic vapor detection, the CUB COV detector (for volatile organic compound) offers ppb or ppm VOC and TAC (total aromatic compound) measurements.

volatile organic compounds detector for VOC monitoring
  • Ultra-light, discrete, robust and easy to use
  • High sensitivity measurement (from 0.001 ppm depending on the version) and high reactivity (less than 5 seconds)
  • Alarm levels triggered by concentration levels (86 dB audible alarm, LED and vibrating alarm)
  • Data-logging
  • ATEX, CE, IECEx, China, USA and Canada (class I, II, III, Division I) approved
Additional information

The CUB is a portable VOC detector with photoionisation detection (PID) technology designed to quickly and accurately detect volatile organic compounds, keeping workers safe within working environment. With parts-per-billion (ppb) sensitivity, the CUB personal gas monitor gives an early warning of exposure to hazardous gases. Comfortable and unobtrusive to wear, the CUB can be easily worn close to the breathing zone thanks to its crocodile clip and is to date the smallest, lightest, personal VOC detector available.

CUB personal detector has a dynamic range of 0 to 5,000 ppm – the widest on the market – measuring 480 selectable compounds. When worker exposure exceeds pre-set limits, an audiovisual and vibrating alarms alert users on hazardous gases concentrations. Readings are displayed on a bright, backlit LCD display with selectable data logging time. Its long duration battery enables a continuous operation during 16 hours when fully charged.

CUB’s patented photoionisation detection (PID) sensor technology has been independently verified as best performing for speed, accuracy and humidity resistant operation. The PID sensor’s Fence Electrode features a humidity resistant and anti-contamination design providing extended run-time in the most challenging environments. Thanks to this technology, the CUB gas detector offers fast response to hazardous gases and vapors (less than 13 seconds).

The CUB personal VOC monitor is available as a standard instrument with 10.6 eV lamp for accurately detecting a wide range of volatile organic compounds (VOCs) in parts per million (ppm) levels. The CUBTAC ppm variant version with 10.0 eV lamp can accurately detect total aromatic compounds (TACs), including benzene. Both models can be quickly and easily upgraded with parts per billion (ppb) sensitivity.

This small and lightweight VOC portable detector is easy to use with a simple one button operation and an intuitive software. The instrument kit includes a charging docking station and calibration certificate.

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The TVOC is a VOC (volatile organic compounds) detector with stationary photoionization for continuous accurate measurements.

  • Détecteur de COV (composés organiques volatils) TVOC
  • PID sensor: 10.6 eV lamp and Ion Science technology
  • Power supply: 5 to 23 VDC and 4-20 mA or IS 8 – 30 VDC output
  • 4 digit LCD display, 4 alarm colored LED
  • Measuring range: from 0 to 100 ppm and from 100 to 1,000 ppm
  • ATEX approved for use in hazardous areas
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Volatile organic compounds detector – TVOC

The TVOC is a VOC (volatile organic compounds) detector with stationary photoionization for continuous accurate measurements.

Fxed gas detector TVOC - w1
  • PID sensor: 10.6 eV lamp and Ion Science technology
  • Power supply: 5 to 23 VDC and 4-20 mA or IS 8 – 30 VDC output
  • 4 digit LCD display, 4 alarm colored LED
  • Measuring range: from 0 to 100 ppm and from 100 to 1,000 ppm
  • ATEX approved for use in hazardous areas
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Benzene respiratory protection (C6H6)

As benzene is irritating to the eyes, it is recommended to use a full face mask for short interventions or a much more comfortable powered air purifying respirator equipped with an A filter. If concentrations exceed 60 times the OEL, a self-contained breathing apparatus (SCBA) is required.

The Duraflow powered air respirator is a versatile solution for hazardous workspaces. It provides a quality respiratory protection for a fair price.

  • The powered air purifying respirator Duraflow PAPR
  • Compatibility with RD DIN 40 universal filter cartridges
  • Rechargeable battery – 2 available version: 8 or 16 hours runtime
  • Automatic airflow regulation (160l/min)
  • Visual alarms, notifications and display
  • CEN1294 & CE0086 certified, IP55/IP67
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Powered air purifying respirator Duraflow

The Duraflow powered air respirator is a versatile solution for hazardous workspaces. It provides a quality respiratory protection for a fair price.

The powered air purifying respirator Duraflow PAPR
  • Compatibility with RD DIN 40 universal filter cartridges
  • Rechargeable battery – 2 available version: 8 or 16 hours runtime
  • Automatic airflow regulation (160l/min)
  • Visual alarms, notifications and display
  • CEN1294 & CE0086 certified, IP55/IP67
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The SARI gas mask provides operating comfort and efficient protection against toxic gases and particles (solid, radioactive, smokes), bacteria and virus.

  • Compatible with PRO2000 filter range (gas, particle and combined)
  • Central phonic membrane for easy communication
  • Compatible with powered air equipment
  • Internal mask with non-return and anti-fog valves, reduces CO2
  • Fully adjustable 5 points harness for improved operating comfort
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Full face gas mask – SARI

The SARI gas mask provides operating comfort and efficient protection against toxic gases and particles (solid, radioactive, smokes), bacteria and virus.

masque sari contre les gaz toxiques et vapeurs chimiques
  • Compatible with PRO2000 filter range (gas, particle and combined)
  • Central phonic membrane for easy communication
  • Compatible with powered air equipment
  • Internal mask with non-return and anti-fog valves, reduces CO2
  • Fully adjustable 5 points harness for improved operating comfort
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Sigma self-contained breathing apparatus from SCOTT Safety combines highest respiratory protection levels to a cost-effective and user-friendly equipment to meet industrial and marine sectors requirements.

  • High performance pneumatic system
  • Ultra-compact demand valve triggered from first breath
  • Lighweight and ergonomic backplate and fireproof harness
  • Possibility to switch to demand constant flow
  • Large range of full face masks: Vision 3, Promask PP and Panaseal
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Self-contained breathing apparatus – SIGMA

Sigma self-contained breathing apparatus from SCOTT Safety combines highest respiratory protection levels to a cost-effective and user-friendly equipment to meet industrial and marine sectors requirements.

Self-contained breathing apparatus SIGMA
  • High performance pneumatic system
  • Ultra-compact demand valve triggered from first breath
  • Lighweight and ergonomic backplate and fireproof harness
  • Possibility to switch to demand constant flow
  • Large range of full face masks: Vision 3, Promask PP and Panaseal
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The Proflow2 PAPR is a compact and lightweight device featuring a curved backplate for user comfort during long-term applications. This powered air purifying respirator is available in 120L/min or 160L/min versions.

  • complete Scott Safety PAPR powered-air-purifying Proflow2
  • DIN40 standard filters compatible with single-cartridge masks.
  • From 7 to 15 hours runtime depending on the face piece.
  • 70 dB audible low battery alarm.
  • Compatible with many face pieces.
  • Certifications: complies with EN12941 and 12942 standards.
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Powered air purifying respirator PROFLOW 2

The Proflow2 PAPR is a compact and lightweight device featuring a curved backplate for user comfort during long-term applications. This powered air purifying respirator is available in 120L/min or 160L/min versions.

complete Scott Safety PAPR powered-air-purifying Proflow2
  • DIN40 standard filters compatible with single-cartridge masks.
  • From 7 to 15 hours runtime depending on the face piece.
  • 70 dB audible low battery alarm.
  • Compatible with many face pieces.
  • Certifications: complies with EN12941 and 12942 standards.
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