HJ 91.2-2022
Technical specifications for surface water environmental quality monitoring (English Version)

Standard No.

HJ 91.2-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

Professional Standard - Environmental Protection

Latest

HJ 91.2-2022

Replace

HJ/T 91-2002

Scope

This standard specifies the layout and sampling, monitoring items and analysis methods, monitoring data processing, quality assurance and quality control, original records, etc. of surface water environmental quality monitoring. This standard applies to manual monitoring of water environment quality of surface waters such as rivers, lakes, reservoirs and channels.

HJ 91.2-2022 Referenced Document

• GB 3838 Environmental quality standards for surface water
• GB/T 4883 Statistical interpretation of data.Detection and treatment of outliers in the normal sample
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
• HJ 1075 Determination of water quality turbidity turbidity meter method
• HJ 493 Water quality.Technical regulation of the preservation and handling of samples
• HJ 630 Technical guideline on environmental monitoring quality management
• RB/T 214 Competence assessment for inspection body and laboratory mandatory approval.Genaral requirements for inspection body and laboratory

HJ 91.2-2022 history

• 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

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