GB/T 33057-2022Methods for sampling and sample preparation of waste chemicals (English PDF)
废弃化学品取样制样方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 30, 2022
Implementation date
July 1, 2023
Scope
GB/T 33057-2022 is the English-translated version of 废弃化学品取样制样方法.
GB/T 33057-2022 is the Chinese national method for taking and preparing samples of waste chemicals. It specifies the safety measures to observe, the sampling itself, the preparation of the sample and the control of the process, and it defines the terms the work uses: batch, batch lot, increment, increment quantity, sample number and small sample.
It applies to waste chemicals in general, but not to waste explosives, waste gases or waste aerosols. Compared with the previous edition it carries a new title, revised safety measures and a new chapter on sample preparation, mechanical preparation included.
It cites GB/T 2007.1-1987 and GB/T 6680-2003 for the general sampling rules, GB/T 3723 for sampling safety, and GB 5085.7 and HJ/T 298-2019 for identifying hazardous waste.
It replaces GB/T 33057-2016, was issued on 30 December 2022 and has applied since 1 July 2023.
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Document preview — GB/T 33057-2022
National Standard of the People's Republic of China
- ICS
- 13.030.01
- Classification
- Z 04
- Replacing
- GB/T 33057-2016
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
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 replaces GB/T 33057-2016 "Sampling Methods for Waste Chemicals". Compared with GB/T 33057-2016, except for structural adjustment In addition to editorial changes, the main technical changes are as follows.
a) the name of the standard has been changed;
b) Added the terms "small sample", "large sample", "sample preparation", "mechanical sample preparation" and their definitions (see 3.6, 3.7, 3.8, 3.9);
c) Changed the "safety measures" requirements (see Chapter 4, Chapter 5 of the 2016 edition);
d) Requirements related to "sample preparation" have been added (see Chapter 6).
1 Scope
This document specifies the safety measures, sampling, sample preparation and process control for waste chemical sampling and sample preparation.
This document is applicable to the sampling and sample preparation of waste chemicals.
This document does not apply to waste explosives, waste gases and waste aerosols (also known as "aerosols").
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 2007.1-1987 General rules for sampling and sample preparation of bulk mineral products Manual sampling method
GB/T 3723 General Rules for Sampling Safety of Industrial Chemical Products
GB 5085.7 General Rules for Hazardous Waste Identification Standards
GB/T 6680-2003 General Rules for Sampling of Liquid Chemical Products
GB/T 29329 Terminology of Waste Chemicals
HJ/T 298-2019 Technical Specification for Hazardous Waste Identification
3 Terms and Definitions
GB/T 2007.1-1987, GB/T 29329 and the following terms and definitions apply to this document.
3.1 Batch
Waste chemicals with the same source, the same properties, and basically the same composition.
3.2 Batch lot
Quantity of a batch of waste chemicals.
3.3 Increment
Waste chemicals obtained in one operation.
3.4 Increment quantity
The mass or volume of waste chemical that constitutes an incremental sample.
3.5 Sample number
The number of incremental samples taken from a batch of waste chemicals.
3.6 Small sample
A sample composed of two or more partial samples in a batch or after crushing and shrinking one by one.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 2007.1-1987General rules for the sampling and sample preparation of minerals in bulk-Sampling by manual method
- GB/T 3723Sampling of chemical products for industrial use. Safety in sampling
- GB 5085.7Identification standards for hazardous waste - General rules
- GB/T 6680-2003General rules for sampling liquid chemical products
- GB/T 29329Vocabulary of waste chemicals
- HJ/T 298-2019Technical specifications on identification for hazardous waste
Cited by
- GB/T 43305-2023Practices for compatibility tests of waste chemicals
- GB/T 43363-2023Determination for speciation of 12 elements such as copper, zinc, cadmium, lead and chromium in waste chemicals—Sequential extraction procedure
- HG/T 5811-2020Determination of iron content in iron-containing chemical sludge
Similar standards
Editions of GB/T 33057
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 33057-2022 | Methods for sampling and sample preparation of waste chemicals | current edition | Current |
| GB/T 33057-2016 | Methods for sampling and sample preparation of waste chemicals | previous edition | Superseded |
This page sells the current edition, GB/T 33057-2022. Earlier editions are listed for reference only.
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Related Standards
GB 5085.7-2019 — Identification standards for hazardous waste - General rules
GB/T 2007.1-1987 — General rules for the sampling and sample preparation of minerals in bulk-Sampling by manual method
GB/T 29329-2021 — Vocabulary of waste chemicals
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GB/T 33057-2022
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