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Toluene – C7H8

This page presents information on toluene or methyl benzene (C7H8): characteristics, effects on health, detection devices & systems – Toluene gas detector – and proper respiratory protective equipment (gas mask or PAPR with A gas filter).

Toluene gas detector and C7H8 respiratory protection against hazards

Toluene properties

Heavily produced during the Second World War to produce TNT, methyl benzene (C7H8) – or toluene – is a volatile organic compound. This substance is now used in many fields of activities such as construction sites (paint solvent, glue or polish), printing plants (ink) or the pharmaceutical industry.  It can also be found in some petroleum products to enhance the octane rating in fuels.

CAS TWA (8 hours) STEL (15 minutes) LEL IP Density / Air Filter / SCBA
203-625-9 20 ppm  100 ppm 1.2 % 8.82 eV 3.14 A

Toluene effects on health

Featuring a specific smell (dissolvent), toluene (C7H8) is a colorless, flammable and explosive gas. It reacts with many volatile organic compounds and oxidizers to produce even more explosive gaseous mixtures. This gas is also very harmful and even lethal if swallowed or absorbed by the breathing tracts. Chronic exposure can lead to severe effects to vital organs and can impair fetus health in pregnant women.

Toluene hazards and effects on health: why use a C7H8 gas detector

Toluene hazards and effects on health (C7H8)

Toluene gas detector - C7H8

Despite its detectable smell, only a toluene gas detector can accurately measure concentrations of this gas. Even if it can explode at 1.2% volume, an explosivity monitoring is pointless because this gas is highly toxic. It is then recommended to use a toluene detection equipment performing ppm measurements.

The colorimetric gas detection tube system is a simple and accurate solution composed by a manual sampling pump and a specific gas detection tube. They are designed for use together.

  • Gas detector tubes Colorimetric tube
  • Accurate: the sampling pump features a mechanical accuracy piston which creates a vacuum then enables direct reading on the colored tube (colorimetric tube)
  • Swift: one or two pump strokes are enough to draw sample and the value can be directly read on the tube
  • User-friendly: no knowledge, no specific process and no technical competence are required

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Colorimetric tubes

The colorimetric gas detection tube system is a simple and accurate solution composed by a manual sampling pump and a specific gas detection tube. They are designed for use together.

Gas detector tubes Colorimetric tube
  • Accurate: the sampling pump features a mechanical accuracy piston which creates a vacuum then enables direct reading on the colored tube (colorimetric tube)
  • Swift: one or two pump strokes are enough to draw sample and the value can be directly read on the tube
  • User-friendly: no knowledge, no specific process and no technical competence are required

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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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C7H8 respiratory protection

As toluene is highly toxic, it is advised to wear a purifying respiratory protective equipment such as half-masks or full-face masks for short interventions or a much more comfortable powered air purifying respirator equipped with a type A filtering cartridge. The use of a self-contained breathing apparatus (SCBA or airline system) is mandatory if the toluene concentration exceeds 60 times the OEL in the concerned environment.

PROFILE40 is a single-cartridge half-mask featuring a DIN 40mm thread which complies with EN148-1 standard – related to respiratory protective half-masks

  • Compatible with every PRO2000 filter less than 300 grams
  • Robust LSR silicon facepiece with large face seal
  • Easy adjustable harness for device airtight
  • Particularly suitable with eyewear and safety glasses
  • Available in 2 different sizes
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Respiratory protective half-mask – PROFILE40

PROFILE40 is a single-cartridge half-mask featuring a DIN 40mm thread which complies with EN148-1 standard – related to respiratory protective half-masks

Demi-masque DIN40 PROFILE40
  • Compatible with every PRO2000 filter less than 300 grams
  • Robust LSR silicon facepiece with large face seal
  • Easy adjustable harness for device airtight
  • Particularly suitable with eyewear and safety glasses
  • Available in 2 different sizes
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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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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.
Request a quote
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