HJ 734-2014 in English

This standard specifies the sorbent adsorption and thermal desorption / gas chromatography mass spectrometry method for determination of 24 volatile organic compounds in stationary source emission.
This standard is applicable to determination of 24 volatile organic compounds in stationary source emission; the 24 volatile organic compounds include: acetone, isopropanol, hexane, ethyl acetate, benzene, hexamethyldisiloxane, 3-pentanone, heptane, toluene, cyclopentanone, ethyl lactate, butyl acetate, PGEA, ethyl benzene, p-xylene/m-xylene, 2-heptanone, styrene, o-xylene, anisole, benzaldehyde, 1-decene, 2-nonanone and 1- dodecene. Methods specified in this standard are also applicable to other volatile organic compounds which are verified.
Where the sampling volume is 300 ml, the method detection limit of this standard is 0.001~0.01 mg/m3 and the lower limit for determination is 0.004~0.04 mg/m3, as detailed in Appendix A.

Foreword I
1 Scope of application
2 Normative References
3 Terms and Definitions
4 Principle
5 Reagents and Materials
6 Apparatuses
7 Samples
8 Analysis Procedures
9 Computation and Express of Test Results
10 Precision and Accuracy
11 Quality Assurance and Quality Control
Appendix A (Normative) Detection Limit and Lower Determination Limit of Target Compound
Appendix B (Informative) Precision and Accuracy
Appendix C (Informative) Application and Selection of Sorbent Tube
Appendix D (Informative) Total Standards Ion Diagram
Appendix E (Informative) Other Target Volatile Organic Compounds