HJ/T 91-2002 (English Version) PDF

Scope: This specification applies to water quality monitoring of rivers, lakes, reservoirs and channels, including state-controlled sites that directly declare monitoring data to the state, provincial (autonomous regions, municipalities directly under the Central Government), city (prefecture) level, and county-level control sections (or vertical lines) ) water quality monitoring, as well as monitoring of sewage discharged from pollution sources.

HJ/T 91-2002 Referenced Document

GB 12998-1991 Water Quality Sampling Technical Guidance
GB 12999-1991 Technical regulations on storage and management of water quality sampling samples
GB 15562.1-1995 Graphical signs for environmental protection--Discharge outlet(source)
GB 3838-2002 Environmental quality standards for surface water
GB 50179-1993 Code for liquid flow measurment in open channels
GB 6816-1986 Water Quality Vocabulary Parts 1 and 2
GB 8978-1996 Integrated wastewater discharge standard
GB/T 12997-1991 Water quility--Technical regulation on the design of sampling programmes
HJ/T 15-1996 Supersonic flowmeter of wastewater
ISO 1070:1973 Liquid flow measurement in open channels — Slope-area method
ISO 555-1:1973 Liquid flow measurement in open channels — Dilution methods for measurement of steady flow — Part 1: Constant-rate injection method
ISO 555-2:1987 Liquid flow measurement in open channels — Dilution methods for the measurement of steady flow — Part 2: Integration method
ISO 748:1979 Liquid flow measurement in open channels; Velocity-area methods

2022 HJ 91.2-2022 Technical specifications for surface water environmental quality monitoring
2002 HJ/T 91-2002 Technical Specifications Requirements for Monitoring of Surface Water and Waste Water