GB/T 42629.2-2023 English PDF

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GB/T 42629.2-2023: Code of practice for international seabed area and high seas environmental survey - Part 2: Marine chemical survey
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42629.2-2023	559	Add to Cart	5 days	Code of practice for international seabed area and high seas environmental survey - Part 2: Marine chemical survey	Valid

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Basic data

Standard ID: GB/T 42629.2-2023 (GB/T42629.2-2023)
Description (Translated English): Code of practice for international seabed area and high seas environmental survey - Part 2: Marine chemical survey
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A45
Classification of International Standard: 07.060
Word Count Estimation: 27,270
Date of Issue: 2023-05-23
Date of Implementation: 2023-12-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42629.2-2023: Code of practice for international seabed area and high seas environmental survey - Part 2: Marine chemical survey

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 07:060 CCSA45 National Standards of People's Republic of China International Code of Conduct for Environmental Surveys of Seabed Areas and High Seas Part 2: Marine Chemical Survey Part 2: Marine chemical survey 2023-12-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General requirements 1 4:1 Principles and requirements of survey program design 1 4:2 Quality Assurance and Analytical Quality Control 4 4:3 Sample collection and storage 5 4:4 General requirements for data processing10 4:5 Report writing10 5 Seawater Chemical Analysis Requirements 10 5:1 Dissolved oxygen 10 5:2 pH 11 5:3 Total Alkalinity11 5:4 Active silicates 11 5:5 Active Phosphate 11 5:6 Nitrite 12 5:7 Nitrates12 5:8 Ammonium salt12 5:9 Suspended particulate matter 12 5:10 Total Organic Carbon 12 5:11 Total phosphorus12 5:12 Total nitrogen13 5:13 Dissolved methane in seawater13 5:14 Total mercury and arsenic13 5:15 Copper, lead, cadmium, chromium and nickel13 5:16 Zinc 13 5:17 Iron and manganese13 6 Sediment Chemical Analysis Requirements 14 6:1 pH 14 6:2 Eh value 14 6:3 Fe3/Fe2 ratio 14 6:4 Total mercury and arsenic15 6:5 Copper, lead, cadmium, chromium and nickel15 6:6 Zinc 15 6:7 Organic carbon15 6:8 Total nitrogen 15 6:9 Total phosphorus15 6:10 Amino acids and amino sugars 17 6:11 Sulfides 20 7 Analytical methods of trace elements in organisms 20 7:1 Total Mercury20 7:2 Arsenic 20 7:3 Copper, lead, cadmium and chromium 20 7:4 Zinc 20 7:5 Manganese, iron and nickel 20 Reference 21

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting: This document is part 2 of GB/T 42629 "International Regulations for Environmental Investigation of Seabed Areas and High Seas": GB/T 42629 has been issued the following sections: --- Part 1: General; --- Part 2: Marine chemical survey; --- Part 3: Marine Biological Survey; --- Part 4: Survey of physical properties of marine sediments: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by the Ministry of Natural Resources of the People's Republic of China: This document is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283): This document is drafted by: The Second Institute of Oceanography, Ministry of Natural Resources: The main drafters of this document: Ni Jianyu, Liu Xiaoya, Yao Xuying, Zhou Peng, Chen Lihong, Wang Rong:

Introduction

In order to fully implement the "Law of the People's Republic of China on the Exploration and Exploitation of Resources in Deep Seabed Areas" and abide by the relevant regulations of the International Seabed Authority and The requirements of environmental guidelines guide Chinese contractors to effectively implement polymetallic nodules, cobalt-rich crusts and polymetallic sulphide resources in deep seabed areas: Environmental investigation obligations for resource exploration and development, compiled a series of regulations GB/T 42629 "International Seabed Areas and High Seas Environmental Investigation Regulations", so that my country's environmental investigation techniques and methods in international seabed areas and high seas are in line with international standards, and it is for Chinese contractors to fulfill their environmental investigation obligations and carry out environmental investigations: Provide technical support for high seas environmental survey: GB/T 42629 aims to establish the content generally applicable to the international seabed area and high seas environmental investigation: Content, procedures and common requirements, it is proposed to be composed of 4 parts: --- Part 1: General: The purpose is to establish the international seabed area and the high seas marine chemistry, marine biology, marine sediment Procedures and general requirements for marine environment surveys such as physical properties and physical oceanography: --- Part 2: Marine chemical survey: The purpose is to standardize the content and analysis methods of marine chemical surveys: --- Part 3: Marine biological survey: The purpose is to standardize the content, methods and technical requirements of marine biological surveys: --- Part 4: Survey of physical properties of marine sediments: The purpose is to standardize the survey contents, methods and techniques of physical characteristics of marine sediments: technical requirements: This document is Part 2 of GB/T 42629: This document is used in conjunction with other parts: International Code of Conduct for Environmental Surveys of Seabed Areas and High Seas Part 2: Marine Chemical Survey

1 Scope

This document specifies general requirements for marine chemical surveys of international seabed areas and the high seas, requirements for chemical analysis of seawater, chemical analysis of sediments Requirements and analytical methods for trace elements in living organisms, etc: This document applies to marine chemical surveys in international seabed areas and environmental surveys of the high seas other than polar oceans:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 8170 Numerical rounding off rules and expression and determination of limit values GB/T 11911-1989 Determination of iron and manganese in water by flame atomic absorption spectrophotometry GB/T 12763:1-2007 Marine survey specification Part 1: General principles GB/T 12763:4-2007 Specifications for Marine Survey Part 4: Survey of Chemical Elements in Seawater GB/T 12763:8-2007 Specifications for marine surveys Part 8: Marine geological and geophysical surveys GB 17378:4-2007 Marine Monitoring Specification Part 4: Seawater Analysis GB 17378:5-2007 Marine Monitoring Specification Part 5: Sediment Analysis GB 17378:6-2007 Marine Monitoring Specification Part 6: Analysis of Organisms GB/T 42629:1-2023 International Technical Regulations for Environmental Survey of Seabed Areas and High Seas Part 1: General Rules HY/T 206-2016 Determination of iron, manganese, nickel, potassium, sodium, calcium and magnesium in marine sediments and organisms by atomic absorption spectrophotometry

3 Terms and Definitions

The following terms and definitions apply to this document: 3:1 interstitial water porewater Water between sediment particles: 3:2 section transect The route of a marine survey ship from point A to point B, or the vertical profile from the sea surface to the seabed: [Source: ISBA/25LTC/6/Rev:1, Annex II]

4 General requirements

4:1 Principles and requirements of survey program design 4:1:1 Design principles According to the requirements of the mission statement or contract, follow the combination of limited goals, economic efficiency, technological advancement and actual conditions, and be able to match the historical ......

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