Q: Does the unit identify which VOC is giving the reading?
A: No, the unit only identifies that a VOC is present. If you need to identify the VOC, then use the optional gas collection bag, and then send the bag for analysis.
Q: What concentration of calibration gas should be used?
A: Isobutylene in air at 100 parts per million.
Q: How do I measure other gases?
A: The VOC meter simultaneously measures a wide range of compounds.
Q: Is the calibration accurate for other gases?
A: Different gases produce different readings on the meter. For a truly accurate reading for a particular gas the meter would need to be calibrated for the gas, or a correction factor can be applied to the reading. However, maximum safe levels of all possible contaminants have not been determined for IVF, so a standard calibration with isobutylene gives a good indication for all VOCs.