IS 5182 : Part 28 : 2025 Air Pollution - Methods for Measurement - Part 28 Vapour-Phase Organic Chemicals C3 to nC30 Hydrocarbons in Air and Gaseous Emissions - Sampling by Pumped Sorbent Tubes Followed by Thermal Desorption (TD) and Capillary Gas Chromatography (GC) Analysis
1 SCOPE
1.1 This standard prescribes the method applicable to measure the vapour-fraction of gas chromatography GC-compatible organic compounds in ambient, indoor and workplace air and in the air exhausting from product or material emission test chambers. Compatible compounds range in volatility from C3 to n-C30 hydrocarbons at concentrations ranging from low micrograms per cubic metre (low ng/l) to milligrams per cubic metre (high μg/l).
1.2 The list of compounds of interest is given in Annex A, but other organic vapours within the specified volatility range can also be monitored using this method provided they are readily analyzed by gas chromatography
2 REFERENCE
The standards given below contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of these standards:
| IS No | Title |
| IS 4167 : 2020 | Glossary of terms relating to air pollution (second revision) |
| IS 5182 (Part 11) : 2006 | Methods for measurement of air pollution: Part 11 benzene, toluene and xylene (BTX) (second revision) |
| IS 16247 : 2019 | Gas analysis - Contents of - Certificates for calibration gas mixtures (first revision) |
| ISO 13137 : 2022 | Workplace atmospheres - Pumps for personal sampling of chemical and biological agents - Requirements and test methods |
| ISO 16017-1 : 2000 | Indoor, ambient and workplace air - Sampling and analysis of volatile organic compounds by sorbent tube/thermal desorption/capillary gas chromatography Part 1: Pumped sampling |