GB/T 6816-1986
Abolished
T/CHES 71-2022
Active
Group standards
T/CHES 71-2022 Water function area limit sewage discharge safety margin calculation method
T/CHES 71-2022 Water function area limit sewage discharge safety margin calculation method
Price:
$ 30.00
Basic Information
Standard Code:
T/CHES 71-2022
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Water supply and drainage projects
ICS Name:
\nWater quality
Publish Date:
2022-09-29
Implement Date:
2022-12-01
Pages:
24 pages
Scope
This document stipulates the basic requirements, design conditions, and calculation methods for calculating the safety margin of wastewater discharge restrictions in water functional zones.
This document is applicable to the determination and accounting of the safety margin in the total discharge limits of water functional zones.
Development Information
Referenced Standards
Related Standards
GB/T 6920-1986
Active
GB/T 6920-1986 Water quality—Determination of pH value—Glass electrode method
GB/T 7466-1987
Active
GB/T 7466-1987 Water quality—Determination of total chromium
GB/T 7467-1987
Active
GB/T 7467-1987 Water quality—Determination of chromium (Ⅵ)—1,5 Diphenylcarbohydrazide spectrophotometric method
GB/T 7468-1987
Abolished
GB/T 7468-1987 Water quality—Determination of total mercury—Cold atomic absorption spectropho to metry
GB/T 7469-1987
Active