HJ 1271-2022 (English Version) PDF

Scope: This standard specifies an ion chromatography method for the determination of formic acid, acetic acid and oxalic acid in ambient air particulate matter. This standard is applicable to the determination of formic acid, acetic acid and oxalic acid in air particles in ambient air and unorganized emission monitoring points. The minimum detectable amounts of formic acid, acetic acid and oxalic acid in this standard are 0.8 μg ~ 1.9 μg. When the ambient air sampling volume is 144 m3 (actual state), the extraction liquid volume is 100 ml, and the injection volume is 200 μl, the detection limit of this method is 0.006 μg/m3 ~ 0.02 μg/m3, and the lower determination limit is 0.024 μg/ m3～0.08 μg/m3. When the air sampling volume at the fugitive emission monitoring point is 6 m3 (standard state), the extraction liquid volume is 100 ml, and the injection volume is 200 μl, the detection limit of this method is 0.2 μg/m3 ~ 0.4 μg/m3, and the lower limit of determination is It is 0.8 μg/m3～1.6 μg/m3. See Appendix A for details.

HJ 1271-2022 Referenced Document

HJ 1263 Ambient air—Determination of total suspended particle —Gravimetric method
HJ 194 Technical specification for manual monitoring of ambient air quality "Revision No. 1"
HJ 618 The Gravimetric Method for Determination of PM10 and PM2.5 in Ambient Air "No. 1 Amendment"
HJ 656 Ambient Air Particulate Matter (PM2.5) Manual Monitoring Method (Gravimetric Method) Technical Specification "No. 1 Amendment"
HJ 664 Technical regulation for selection of ambient air quality monitoring stations (on trial)
HJ 93 Ambient air particulate matter (PM10 and PM2.5) sampler technical requirements and detection methods "No. 1 Amendment"
HJ/T 374 Technical requirement and test procedures for total suspended particulates sampler
HJ/T 55 Technical guidelines for fugitive emission monitoring of air pollutants

2022 HJ 1271-2022 Ambient Air—Determination of formic acid, acetic acid and oxalic acid in particulate matter—Ion chromatography