GB/T 19493-2004
Active
HJ 1221-2021
Active
Industry standards-Environmental protection
HJ 1221-2021 Environmental air: Determination of dust fall using weight method
HJ 1221-2021 Environmental air: Determination of dust fall using weight method
Basic Information
Standard Code:
HJ 1221-2021
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Environmental protection
ICS Name:
Environmental protection, health, and safety (vocabulary)
Publish Date:
2021-12-16
Implement Date:
2022-06-01
Scope
This standard specifies the gravimetric method for measuring dustfall in ambient air. This standard is applicable to the measurement of dustfall in ambient air. The detection limit of the dustfall measured by this standard is 0.3 t/km2 in 30 days, and the measurement lower limit is 1.2 t/km2 in 30 days.
Development Information
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