GB/T 5750.6-2023Standard examination methods for drinking water—Part 6: Metal and metalloid indices (English PDF)

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 6 of GB/T 5750 "Standard test methods for drinking water". GB/T 5750 has been published in the following parts.

--- Part 1: General;

--- Part 2: Collection and preservation of water samples;

--- Part 3: Water quality analysis quality control;

--- Part 4: Sensory properties and physical indicators;

--- Part 5: Inorganic non-metallic indicators;

--- Part 6: Metal and metalloid indicators;

--- Part 7: Comprehensive indicators of organic matter;

--- Part 8: Organic matter indicators;

--- Part 9: Pesticide indicators;

--- Part 10: Disinfection by-product indicators;

--- Part 11: Disinfectant indicators;

--- Part 12: Microbiological indicators;

--- Part 13: Radioactivity indicators.

This document replaces GB/T 5750.6-2006 "Standard test methods for metal indicators of drinking water" and is consistent with GB/T 5750.6-2006 Compared with the previous version, in addition to structural adjustments and editorial changes, the main technical changes are as follows.

a) Added "Terms and Definitions" (see Chapter 3);

b) 10 test methods were added (see 9.5, 9.6, 10.5, 13.2, 28.1, 28.2, 28.3, 29.1, 30.1, 30.2);

c) One test method was changed (see 4.5, 1.5 of the 2006 edition);

d) 13 test methods were deleted (see 4.2.2, 4.2.3, 4.2.4, 5.2, 5.4, 6.4, 7.4, 7.5, 9.3, 11.3, 11.4, 17.1, 20.3).

Introduction

GB/T 5750 "Standard Test Methods for Drinking Water" is a recommended national standard for drinking water testing technology.

The supporting work of the "Sanitary Standard for Drinking Water" is an important technical support for GB 5749, and is an important technical support for the implementation of GB 5749 and the development of the sanitation of drinking water. Safety evaluation provides testing methods.

GB/T 5750 consists of 13 parts.

--- Part 1: General. The purpose is to provide the basic principles and requirements for water quality inspection.

--- Part 2: Collection and preservation of water samples. The purpose is to provide a basis for water sample collection, preservation, management, transportation and sampling quality control. These principles, measures and requirements.

--- Part 3: Water quality analysis quality control. The purpose is to provide quality control requirements and methods for water quality inspection and testing laboratories.

--- Part 4: Sensory properties and physical indicators. The purpose is to provide corresponding test methods for sensory properties and physical indicators.

--- Part 5: Inorganic non-metallic indicators. The purpose is to provide corresponding test methods for inorganic non-metallic indicators.

--- Part 6: Metal and metalloid indicators. The purpose is to provide corresponding test methods for metal and metalloid indicators.

--- Part 7: Comprehensive indicators of organic matter. The purpose is to provide corresponding test methods for comprehensive indicators of organic matter.

--- Part 8: Organic matter indicators. The purpose is to provide corresponding test methods for organic matter indicators.

--- Part 9: Pesticide indicators. The purpose is to provide corresponding test methods for pesticide indicators.

--- Part 10: Disinfection by-product indicators. The purpose is to provide the corresponding test methods for disinfection by-product indicators.

--- Part 11: Disinfectant indicators. The purpose is to provide the corresponding test methods for disinfectant indicators.

--- Part 12: Microbiological indicators. The purpose is to provide corresponding test methods for microbiological indicators.

--- Part 13: Radioactive indicators. The purpose is to provide the corresponding test methods for radioactive indicators.

1 Scope

This document describes the content of aluminum, iron, manganese, copper, zinc, arsenic, selenium, mercury, cadmium, chromium (hexavalent), lead, silver, molybdenum, cobalt, nickel, barium, titanium, vanadium, Determination methods for antimony, beryllium, thallium, sodium, tin, tetraethyl lead, ethyl mercuric chloride, boron, asbestos and determination methods for aluminum, iron, manganese, copper, zinc, arsenic, selenium, mercury, Cadmium, chromium (hexavalent), lead, silver, molybdenum, cobalt, nickel, barium, titanium, vanadium, antimony, beryllium, thallium, sodium, tin, tetraethyl lead, ethylmercuric chloride (purge and trap gas chromatography- Atomic fluorescence spectrometry), boron and asbestos determination methods.

This document is applicable to the determination of metal and metalloid indicators in drinking water and source water.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

GB/T 5750.1 Standard test methods for drinking water Part 1: General

GB/T 5750.3-2023 Standard test methods for drinking water Part 3: Quality control of water quality analysis

GB/T 5750.5-2023 Standard test methods for drinking water Part 5: Inorganic non-metallic indicators

GB/T 6682 Specifications and test methods for water used in analytical laboratories

3 Terms and definitions

The terms and definitions defined in GB/T 5750.1 and GB/T 5750.3-2023 apply to this document.

4 Aluminum