2021HJ 653-2021 Technical requirements and detection methods for continuous automatic monitoring system of ambient air particulate matter (PM10 and PM2.5)
2013HJ 653-2013 Specifications and test procedures for ambient air quality continuous automated monitoring system for PM<下标10> and PM<下标2.5>
HJ 653-2013(XG1-2018) Ambient Air Particulate Matter (PM10 and PM2.5) Continuous Automatic Monitoring System Technical Requirements and Detection Methods "No. 1 Amendment" was changed to HJ 653-2013 Specifications and test procedures for ambient air quality continuous automated monitoring system for PM<下标10> and PM<下标2.5>.