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Test methods for size of cork granules by mechanical sieving
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GB/T 43211-2023
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Basic data | Standard ID | GB/T 43211-2023 (GB/T43211-2023) | | Description (Translated English) | Test methods for size of cork granules by mechanical sieving | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B70 | | Classification of International Standard | 79.100 | | Word Count Estimation | 10,187 | | Date of Issue | 2023-09-07 | | Date of Implementation | 2024-04-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 43211-2023: Test methods for size of cork granules by mechanical sieving---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 79.100
CCSB70
National Standards of People's Republic of China
Test Method for Particle Size Determination of Softwood Pellets by Mechanical Sieving
Published on 2023-09-07
2024-04-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
1 Scope 1
2 Normative reference documents 1
3 Terms and Definitions 1
4 Principle 2
5 Instrument 2
6 Sampling 2
7 Step 2
8 Calculation and presentation of results 2
9 Test report 3
Appendix A (informative) Comparison of structural change numbers between this document and ISO 2030.2018 4
Appendix B (informative) Technical differences between this document and ISO 2030.2018 and their reasons 5
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document is modified to adopt ISO 2030.2018 "Particle size analysis of granular softwood by mechanical screening method".
Compared with ISO 2030.2018, this document has many structural adjustments. See the comparison list of structural number changes between the two documents.
Appendix A.
Compared with ISO 2030.2018, this document has many technical differences. Use vertical single words in the outer margins of the clauses involved.
They are marked with a line (|). A list of these technical differences and their causes is shown in Appendix B.
The following editorial changes have been made to this document.
---The name of the standard has been changed from "Particle Size Analysis of Granular Cork by Mechanical Screening" to "Test for Determination of Particle Size by Mechanical Screening of Softwood Granules"
Test Methods";
---Reference removed.
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by the National Forestry and Grassland Administration.
This document is under the jurisdiction of the National Forestry Biomass Materials Standardization Technical Committee (SAC/TC416).
This document was drafted by. Wood Industry Research Institute of the Chinese Academy of Forestry Sciences, Beijing Weiji Cork New Materials Co., Ltd., Sichuan Agriculture
University, Suzhou University, Dehua Bunny Decorative New Materials Co., Ltd., Xiamen Dingbiao Enterprise Management Services Co., Ltd., Guangdong Product Quality Supervision
Institute of Supervision and Inspection, Suzhou Product Quality Supervision and Inspection Institute, Southwest Forestry University, Inner Mongolia Agricultural University, Nanjing Agricultural University, Shandong Provincial Shuan
Leather Oak Industrial Technology Research Institute Co., Ltd.
The main drafters of this document. Zhang Ran, Duan Xinfang, Zhang Xunya, Zhang Shaobo, Zhang Xionghui, Sheng Shixiong, Chen Shiju, Wen Fuquan, Zhang Rong, Tang Zhengjie,
Yao Lihong, Hu Fei, Lu Yun, Xing Dong, Liu Baoxuan, Zou Miao.
Test Method for Particle Size Determination of Softwood Pellets by Mechanical Sieving
1 Scope
This document describes a method for obtaining the particle size distribution of granular softwood by mechanical sieving.
This document is applicable to the determination of particle size of mechanically screened softwood particles.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 5329-2003 Test sieve and sieving test terminology (ISO 2395.1990, MOD)
GB/T 6005-2008 Basic dimensions of test sieve wire mesh, perforated plate and electroformed sheet mesh (ISO 565.
1990,MOD)
Note. There is no technical difference between the quoted content of GB/T 6005-2008 and the quoted content of ISO 565.1990.
GB/T 42110-2022 Cork terminology (ISO 633.2019, MOD)
GB/T 42306-2023 Classification, properties and packaging of cork granules and cork powder (ISO.1997.2018, MOD)
3 Terms and definitions
The terms and definitions defined in GB/T 5329-2003, GB/T 42110-2022 and the following apply to this document.
3.1
Granularity size
Particle sizeparticlesize
The size of the smallest sieve opening through which a particle can pass in its most favorable orientation.
[Source. GB/T 5329-2003, 2.4.1, with modifications]
3.2
mechanical screeningmechanicalsieving
Screening using one or a group of test sieves with the help of mechanical shaking.
[Source. GB/T 5329-2003,2.3.5]
3.3
cover
A cover that fits snugly over the sieve to prevent the material being screened from escaping.
[Source. GB/T 5329-2003,2.2.11]
3.4
sieve
A device that installs the screen surface in the screen frame for screening.
[Source. GB/T 5329-2003,2.2.1]
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GB/T 43211-2023: Test methods for size of cork granules by mechanical sieving
Status: Valid
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