HJ 734-2014 (English Version) PDF

Scope: This standard specifies the solid-phase adsorption-thermal desorption/gas chromatography-mass spectrometry method for the determination of 24 volatile organic compounds in waste gas from fixed pollution sources. This standard is applicable to the determination of 24 volatile organic compounds in waste gas from fixed pollution sources. The 24 volatile organic compounds include: acetone, isopropyl alcohol, n-hexane, ethyl acetate, benzene, hexamethyldisiloxane, and 3-pentanone. , n-heptane, toluene, cyclopentanone, ethyl lactate, butyl acetate, propylene glycol monomethyl ether acetate, ethylbenzene, p-/m-xylene, 2-heptanone, styrene, o-xylene, benzyl Ether, benzaldehyde, 1-decene, 2-nonanone, 1-dodecene. This method can also be used for other volatile organic compounds after validation. When the sampling volume is 300 ml, the detection limit of this standard method is 0.001~0.01 mg/m, and the lower limit of determination is 0.004~0.04 mg/m. See Appendix A for details.

HJ 734-2014 Referenced Document

HJ 639 Water quality.Determination of volatile organic compounds.Purge and trap/gas chromatography-mass spectrometer
HJ/T 397 Technical specifications for emission monitoring of stationary source

2014 HJ 734-2014 Stationary source emission.Determination of volatile organic compounds.Sorbent adsorption and thermal desorption gas chromatography mass spectrometry method