HJ 442.4-2020
Inshore Sea Area Environmental Monitoring Technical Specifications Part Four Inshore Sea Area Sediment Monitoring ( (English Version)

Standard No.

HJ 442.4-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

Professional Standard - Environmental Protection

Latest

HJ 442.4-2020

Replace

HJ 442-2008

Scope

This standard specifies the basic methods and procedures for the collection, storage, transportation, laboratory analysis and quality control of sediment samples in coastal waters. This standard is applicable to the collection, pre-processing, laboratory analysis, and quality control of sediment samples in offshore, estuary, and brackish mixed waters. This method is suitable for the determination of total nitrogen in sediments in estuaries and coastal waters.

HJ 442.4-2020 history

• 2020 HJ 442.4-2020 Inshore Sea Area Environmental Monitoring Technical Specifications Part Four Inshore Sea Area Sediment Monitoring (
• 2014 HJ 730-2014 Specifications on spot location of monitoring sites related to coastal area environment
• 2008 HJ 442-2008 Specification for offshore environmental monitoring

HJ 442.4-2020 Inshore Sea Area Environmental Monitoring Technical Specifications Part Four Inshore Sea Area Sediment Monitoring ( has been changed from HJ 442-2008 Specification for offshore environmental monitoring.