GB/T 6816-1986
Abolished
DB4403/T 224-2021
Active
Guangdong ProvinceLocal standards
DB4403/T 224-2021 Public Water Pipe Network Operation and Management Regulations
DB4403/T 224-2021 Public Water Pipe Network Operation and Management Regulations
Basic Information
Standard Code:
DB4403/T 224-2021
Standard Type:
Local standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Water supply and drainage projects
ICS Name:
\nWater quality
Publish Date:
2021-12-30
Implement Date:
2022-01-01
Pages:
31 pages
Scope
This document applies to the operation and management of municipal drinking water networks, drinking water networks in residential areas before water meters, and their ancillary facilities within the jurisdiction of Shenzhen City (including the Shenzhen-Shantou Cooperation Zone), excluding the operation and management of secondary water supply facilities.
Development Information
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