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GB 18420.1-2009 (GB18420.1-2009)

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GB 18420.1-2009: PDF in English
GB 18420.1-2009
GB
ICS 13.030.20
Z 17
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Replacing GB 18420.1-2001
Biological toxicity for pollutants from marine petroleum
exploration and exploitation - Part 1. Grading
海洋石油勘探开发污染物生物毒性
ISSUED ON. MARCH 11, 2009
IMPLEMENTED ON. NOVEMBER 1, 2009
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1  Scope ... 4 
2  Normative references ... 4 
3  Terms and definitions ... 4 
4  Sea-area level ... 6 
5  Biological toxicity test ... 7 
6  Biological toxicity grading ... 7 
7  Result judgment ... 8 
Foreword
All the technical contents in this Part are mandatory.
Biological Toxicity for Pollutants from Marine Petroleum Exploration and Exploitation is
divided into two parts.
— Part 1. Grading
— Part 2. Test methods
This Part is Part 1.
This Part replaces GB 18420.1-2001 Biological Toxicity Grading for Pollutants from
Marine Petroleum Exploitation and Exploitation.
Compared with GB 18420.1-2001, main changes of this Part are as follows.
— Terms and definitions relevant to “Mud” is revised as terms and definitions relevant
to “Drilling Fluid” (3.4 and 3.5 of 2001 version; 3.4 and 3.6 of this version);
— ADD terms and definitions of "Synthetic-based Drilling Fluid" and "Base Fluid" (3.4.3
and 3.5 of this version);
— ADD biological toxicity grading requirements for base fluid and synthetic-based
drilling fluid (6.1.1, 6.1.2, 6.2.1 and 6.2.2 of this version);
— ADJUST the biological toxicity grading requirements for drill cuttings and produced
water (5.3, 6.2 and 6.3 of 2001 version; 6.1.3, 6.1.4 and 6.2.3 of this version).
This Part was proposed by State Oceanic Administration.
This Part shall be centralized by National Marine standardization Technical Committee
(SAC/TC 283).
The drafting organizations of this part. South China Sea Branch of State Oceanic
Administration, and Guangdong Laboratory Animals Monitoring Institute.
Main drafters of this part. Wu Jinxiao, Huang Ren, Zheng Yanjing, Wei Shelin, Zhou Jin,
Wang Ying, and Wang Guodong.
The previous version replaced by this Part is as follows.
— GB 18420.1-2001.
Biological toxicity for pollutants from marine
petroleum exploration and exploitation –
Part 1. Grading
1 Scope
This Part specifies the frequency and limit of biological toxicity test in different sea-areas
of some pollutants that are used or generated during the marine petroleum exploration
and exploitation operation; and are discharged into the ocean. And it puts forward the
requirements to test methods and result judgments of the samples.
This Part applies to biological toxicity grading of drilling fluid, base fluid, drilling cuttings,
and produced water that are used or generated AND discharged into the ocean, during
the marine petroleum exploration and exploitation operation. For those pollutants not
defined in this Part, the biological toxicity grading may reference to this Part for the use.
2 Normative references
The articles contained in the following documents have become part of this Part when
they are quoted herein. For the dated documents so quoted, all the modifications
(excluding corrections) or revisions made thereafter shall not be applicable to this Part.
For the undated documents so quoted, the latest editions shall be applicable to this Part.
GB/T 18420.2 Biological toxicity for pollutants from marine petroleum exploration and
exploitation - Part 2. Test methods
3 Terms and definitions
For the purpose of this Part, the following terms and definitions shall apply.
3.1
Pollutant from marine petroleum exploration and exploitation
Any substance that is used or generated AND discharged into the ocean during marine
petroleum exploration and exploitation operation; and that may have an impact on the
marine ecological environment.
3.2
Biological toxicity grading of pollutants
According to the influence degree of pollutants from marine petroleum exploration and
exploitation on marine organisms, the different grades that are adopted to divide the
biological toxicity of pollutants.
3.3
Operation of marine petroleum exploration and exploitation
The operation activities such as marine petroleum exploration, exploitation, production,
storage, and pipeline transportation.
3.4
Drilling fluid
The circulating fluid that is used in drilling process and that has the effects such as
lubrication and cooling drill bit, carrying drill cuttings, balancing formation pressure. It
includes water-based drilling fluids, oil-based drilling fluids, and synthetic-based drilling
fluids.
3.4.1
Water-based drilling fluid
The drilling fluid of which the suspension of solid particles is water soluble - i.e., the solid
particles are suspended in water or in salt-water; the oil can be emulsified into water; and
the water is in continuous phase.
3.4.2
Oil-based drilling fluid
The drilling oil of which the continuous phase is diesel, mineral oil or some other oils that
do not contain synthetic substance.
3.4.3
Synthetic-based drilling fluid
The drilling oil of which the continuous phase is certain synthetic organic compounds (e.g.
plant ester, poly a-olefins, internal olefins, Linear α- olefin, ethyl ether, linear alkylbenzene
etc.); or the drilling oil of mixture of these synthetic organic compounds.
3.5
Base fluid
The continuous phase in the formula of oil-based drilling fluid or synthetic-based drilling
fluid.
3.6
Drill cuttings
The debris that is generated from the drilling stratum operation and is discharged with
drilling fluids, during the marine petroleum exploration and exploitation. It is divided into
water-based drill cutting, oil-based drill cutting, and synthetic-based drill cutting.
3.7
Produced water
The water separated from the oil-water mixed fluid that is from the stratum in exploitation
of oil reservoir. It includes oil-reservoir water, process water and chemical substances
added in oil-water separation.
3.8
Biological toxicity limit
The biological toxicity limit that is allowed to be discharged into the sea-area by the
pollutants from marine petroleum exploration and exploitation.
3.9
Test frequency
During a certain period of time, the number of biological toxicity test of pollutants, from
marine petroleum exploration and exploitation, discharged in different sea-areas.
3.10
Biological toxicity test
Under the condition, it refers to a test method that pollutants are imposed on organisms,
so as to determine the generated toxicity effect of pollutants ON the organisms.
4 Sea-area level
Pollutants from marine petroleum exploration and exploitation shall accord to the levels of
dumping sea-area specified by this Part to executive classification standard. Sea-area
levels are divided as follows.
— Level I sea-area. It includes Liaodong Bay, Bohai Bay, Laizhou Bay, North Bay, the
special marine protection sea-areas, and other protected sea-areas designated by
......
(Above excerpt was released on 2014-11-20, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/GB18420.1-2009