GB 3097-1997Sea water quality standard (English PDF)

Foreword

This standard was formulated to implement "Environmental Protection Law of the

People's Republic of China" and "Marine Environment Protection Law of the People's

Republic of China", prevent and control seawater pollution, protect marine living

resources and other marine resources, be in favor of sustainable use of marine

resources, maintain ecological balance of marine, and guarantee human health.

This standard shall be implemented from July 1, 1998 and shall replace GB 3097-82

simultaneously.

This standard has the changes in the following contents and chapters.

— 3.1 (for classification of sea water quality, three classes are changed into four

classes);

— 3.2 (supplement and adjust the pollutant items);

— 4.1 (add the specification on acquisition, storage, transportation and

pretreatment of sea water quality monitoring sample);

— 4.2 (add analysis method of sea water quality).

This standard was proposed by the National Environmental Protection Agency and

the National Bureau of Oceanography.

State Environment Protection Administration is responsible for the interpretation of

this standard.

Sea Water Quality Standard

1 Subject Content and Standard Application Scope

This standard specifies the water quality requirements of every kind of application

function in sea area.

This standard is applicable to the sea area governed by the People's Republic of

China.

2 Normative References

The provisions involved in the following criteria are quoted in this standard to

constitute the provisions of this standard, and have the same effect as this standard.

GB 12763.4-91 The Specification for Oceanographic Survey Observations of

Chemical Parameters in Sea Water

HY 003-91 Code for Marine Monitoring

GB 12763.2-91 The Specification for Oceanographic Survey - Marine hydrographic

observations

GB 7467-87 Water Quality - Determination of Chromium (VI) - Diphenylcarbazide

Spectrophotometric Method

GB 7485-87 Water Quality - Determination of Total Arsenic - Silver

Diethyldithiocarbamate Spectrophotometric Method

GB 11910-89 Water Quality - Determination of Nickel - Dimethylglyoxime

Spectrophotometric Method

3 Sea Water Quality Classification and Standard

4 Sea Water Quality Monitoring