GB/T 17642-2025Geosynthetics - Geocomposites made of geononwoven and geomembrance (English PDF)
土工合成材料 非织造布复合土工膜
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Issued by
State Administration for Market Regulation; Standardization Administration of China
Level / Type
National · Recommended
Issue date
April 25, 2025
Implementation date
November 1, 2025
Scope
GB/T 17642-2025 is the English-translated version of 土工合成材料 非织造布复合土工膜.
GB/T 17642-2025 is the Chinese national standard on geosynthetics - geocomposites made of geononwoven and geomembrance, in the field of textile and leather technology.
The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up — which in practice is how most foreign buyers meet it.
It was issued on 25 April 2025 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 1 November 2025.
Classification: ICS 59.080.70, CCS W59. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there.
The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.
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Document preview — GB/T 17642-2025
National Standard of the People's Republic of China
- ICS
- 59.080.70
- Classification
- W59
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Classification, specifications and designations of the products
- 5 Technical requirements
- 6 Test methods
- 7 Inspection rules
- 8 Packaging, storage, transport and marking
3 Terms and definitions
4 Classification, specifications and designations of the products
5 Technical requirements
6 Test methods
7 Inspection rules
8 Packaging, storage, transport and marking
Foreword
This document was issued on 25 April 2025 by the State Administration for Market Regulation and the Standardization Administration of the People's Republic of China, and has been in force since 1 November 2025.
It replaces GB/T 17642-2008.
Classification: ICS 59.080.70, CCS W59.
About this edition
GB/T 17642-2025 is the current edition. It was issued on 25 April 2025 and has been in force since 1 November 2025, replacing GB/T 17642-2008.
GB/T 17642-2008 has been superseded: a specification that still cites it is citing a withdrawn edition.
The interval between issue and effect is the transition period. It exists so that producers, laboratories and buyers can requalify products, revise procedures and use up documentation before the new text becomes the one that applies. The date on this page is the official one from the record of the Standardization Administration.
Classification and status
GB/T 17642-2025 is classified under ICS 59.080.70, in the field of textile and leather technology. ICS is the International Classification for Standards, the same scheme used by ISO and by the national bodies of most countries, which is what allows a Chinese standard to be placed beside its foreign counterparts on subject rather than on number.
Its Chinese Standard Classification code is CCS W59. CCS is the domestic scheme, a letter for the sector and two digits for the subject within it, and it is the code by which the standard is filed and searched in China.
The GB/T prefix marks a recommended national standard. It is not, in itself, law: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it. In practice that covers most of the cases in which it will be read — a purchase specification, an inspection agreement or a certification scheme.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 17642
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 17642-2025 | Geosynthetics - Geocomposites made of geononwoven and geomembrance | current edition | Current |
| GB/T 17642-2008 | Geosynthetics - Geocomposites made of geononwoven and geomembrance | previous edition | Superseded |
This page sells the current edition, GB/T 17642-2025. Earlier editions are listed for reference only.
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