GB/T 4676-2018Abrasive grains -- Sampling and splitting (English PDF)
普通磨料 取样方法
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
September 17, 2018
Implementation date
April 1, 2019
Scope
GB/T 4676-2018 is the English-translated version of 普通磨料 取样方法.
GB/T 4676-2018 is the Chinese standard "Abrasive grains -- Sampling and splitting". Its scope clause reads: This standard specifies the terms and definitions of general abrasive sampling methods, general rules, sampling and shrinking tools, samples, sampling, shrinkage and samples.
Product storage. This standard applies to ordinary abrasives. Corundum series and carbide series products for non-grinding purposes can be used as reference. Its clauses include terms and definitions.
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Document preview — GB/T 4676-2018
National Standard of the People's Republic of China
- ICS
- 25.100.70
- Classification
- J 43
- Replacing
- GB/T 4676-2003
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Batch lot
- 3.2 Delivery batch consignment
- 3.3 Inspection lot testlot
- 3.4 Sample
- 3.5 Increment
- 3.6 Large sample
1 Scope
This standard specifies the terms and definitions of general abrasive sampling methods, general rules, sampling and shrinking tools, samples, sampling, shrinkage and samples.
Product storage.
This standard applies to ordinary abrasives. Corundum series and carbide series products for non-grinding purposes can be used as reference.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 2481.1 Determination and marking of abrasive grain size of bonded abrasives - Part 1 . coarse abrasives F4~F220 (GB/T 2481.1-1998, eqvISO 8486-1.1996)
GB/T 2481.2 Fixed abrasives - Determination and marking of abrasive grain size - Part 2
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
GB/T 9258.1 Specification for abrasive grain size for coated abrasives - Part 1
ISO 6344-1.1998, IDT)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Batch lot
A certain number of products produced under the same production conditions.
3.2 Delivery batch consignment
A certain number of products that are supplied to customers at one time.
Note. A delivery batch consists of one or several production batches, or it can consist of one part of a production batch or parts of several production lots.
3.3 Inspection lot testlot
A number of products for inspection sampling.
3.4 Sample
A certain quantity of products extracted from the inspection lot is used for physical and chemical analysis to provide a basis for judging whether the product meets the requirements.
3.5 Increment
A large sample taken from the packaging unit at a time.
3.6 Large sample
The sum of all samples taken from the same specification inspection lot.
GB/T 2493 | GB/T 2480 | GB/T 23541 | GB/T 4127.9 | GB/T 4127.8 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 2481.1Bonded abrasives - Determination and designation of grain size distribution - Part 1: Macrogrits F4 to F220
- GB/T 2481.1-1998Bonded abrasives - Determination and designation of grain size distribution - Part 1: Macrogrits F4 to F220
- GB/T 2481.2Bonded abrasives - Determination and designation of grain size distribution - Part 2: Microgrits
- GB/T 8170Rules of rounding off for numerical values & expression and judgement of limiting values
- GB/T 9258.1Coated abrasives. Grain size analysis. Part 1: Grain size distribution test
ISO 6344
Cited by
- GB/T 2481.1-2025Bonded abrasives - Determination and designation of grain size distribution - Part 1: Macrogrits F4 to F220
- GB/T 9258.2-2025Coated abrasives - Determination and designation of grain size distribution - Part 2: Macrogrit sizes P12 to P220
- GB/T 9258.3-2025Coated abrasives - Determination and designation of grain size distribution - Part 3: Microgrit sizes P240 to P5000
- GB/T 3045-2024Conventional abrasive - Chemical analysis of silicon carbide
- GB/T 9489-2024Methods for chemical analysis of alundum powder
- GB/T 23538-2023Conventional abrasive—Determination method of ball milling toughness index
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Related Standards
GB/T 2481.1-2025 — Bonded abrasives - Determination and designation of grain size distribution - Part 1: Macrogrits F4 to F220
GB/T 2481.2-2020 — Bonded abrasives - Determination and designation of grain size distribution - Part 2: Microgrits
GB/T 8170-2008 — Rules of rounding off for numerical values & expression and judgement of limiting values
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