GB/T 15432-1995 in English

《GB/T 15432-1995环境空气 总悬浮颗粒物的测定 重量法》由467（生态环境部）归口，主管部门为生态环境部。
本标准规定了测定总悬浮颗粒物的重量法。本标准适合于用大流量或中流量总悬浮颗粒物采样器(简称采样器)进行空气中总悬浮颗粒物的测定。方法的检测限为0.001/m3。总悬浮颗粒物含量过高或雾天采样使滤膜阻力大于10 kPa时，本方法不适用。

1 Subject Content and Application Scope

1.1 Subject content
This standard specifies the gravimetric method for the determination of total suspended particulates.
1.2 Application scope
This standard is applicable to the determination of total suspended particulates in air with large or medium flow-rate total suspended particulates sampler (hereinafter referred to as “sampler”). The detection limit of this method is 0.001 mg/m3. This method is not applicable where the total suspended particulates content is overhigh or the resistance for filter membrane is larger than 10kPa in foggy day.

2 Principle

Extract quantitative volume of air at constant speed with the sampler equipped with specific cutting characteristic; the suspended particulates with particle size less than 100μm will be intercepted in the filter membrane with constant weight. Calculate the concentration of total suspended particulates according to the sampling volume and the weight difference of filter membrane before and after sampling. Proximate analysis is carried out after the treatment for filter membrane.

1 Subject Content and Application Scope
2 Principle
3 Apparatus and Materials
4 Calibration of Sampler Flow
5 Test for Total Suspended Particulates Content
6 Reproducibility of Test Method
Appendix A Requirements for Orifice Flowmeter Calibration (Additional)
Appendix B Record Form for Total Suspended Particulates Sampler Calibrated with Orifice Flowmeter (Reference)
Appendix C On-site Sampling Record for Total Suspended Particulates (Reference)
Appendix D Analytical Record for Concentration of Total Suspended Particulates (Reference)
Additional Information