VOC monitor to protect against volatile organic compounds
Volatile organic compounds used in many industries constitue toxic risks and their effects on health can vary depending on the substance. The dangers range from olfactory disturbance to mutagenic or carcinogen effects, and include risks like lung capacity reduction. The most dangerous organic vapors are formaldehyde, glycol ether, hydrocarbons (benzene, toluene, xylene, etc).
VOC toxicity carries the need for dedicated and appropriate VOC monitoring in order to avoid danger. A portable VOC detector is an essential personal protective equipment -PPE- to monitor exposition to these dangerous substances. These detectors are able to detect concentrations instantly, as well as monitor exposure limit values and occupational exposure limit values (ELV & OEL).
The VOC detector
Most of VOCs and organic vapors can be monitored via photoionization (PID lamp). The most widely used technology in VOC detectors is the 10.6 eV lamp, which has some disadvantages like the limitation to gases with an IP power < 10.6 eV, non-discrimination of monitored gases and high sensibility to relative humidity.
For very specific VOCs (like ethanol or ethylene oxide for example) or with an IP power >10.6 eV (like methanol or formaldehyde), a VOC monitor with an electrochemical sensor. These detectors are less expensive for the initial purchase and for the maintenance than 11.7 eV PID lamps.
Single gas monitors - Multi gas detectors-4 gas monitors - Area gas monitors
Oxygen gas detectors - Fixed gas detectors - Calibration gas - Gas detectors by target gas