What does a PID measure?

A PID will measure the following detectable compounds:

- Aromatic elements (compounds containing a benzene ring): Benzene, ethyl benzene, toluene, naphthalene, xylene
- Ketones & Aldehydes (compounds with a C=O bond): Acetone, methyl ethyl ketone (MEK), methyl isobutyl ketone, acetaldehyde
- Amines and Amides (carbon compounds containing nitrogen): Diethyl amine
- Chlorinated hydrocarbons: Vinyl chloride, chloroform, trichloroethylene (TEC), methylene chloride, perchloroethylene (PERC)
- Sulphur compounds: Mercaptans, sulphides
- Unsaturated hydrocarbons (CnH2n): Butadiene, isobutylene, acetylene, ethylene
- Alcohols: Methanol, ethanol, isopropanol (IPA), n-butanol
- Saturated hydrocarbons (CnH2n+2: Butane, octane
- Organic fuels: Gasoline and kerosene

- Ammonia, nitric oxide, bromine, iodine, phosgene
- Semi-conductor gases: Phosphine, arsine

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