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GB/T 17642-2025: Geosynthetics - Geocomposites made of geononwoven and geomembrance
Status: Valid GB/T 17642: Evolution and historical versions
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| GB/T 17642-2025 | English | 299 |
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Geosynthetics - Geocomposites made of geononwoven and geomembrance
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GB/T 17642-2025
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| GB/T 17642-2008 | English | 115 |
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Geosynthetics - Geocomposites made of geononwoven and geomembrance
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GB/T 17642-2008
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| GB/T 17642-1998 | English | 319 |
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Geosynthetics--Geocomposites made of geononwoven and geomembrance
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GB/T 17642-1998
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Basic data | Standard ID | GB/T 17642-2025 (GB/T17642-2025) | | Description (Translated English) | Geosynthetics - Geocomposites made of geononwoven and geomembrance | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | W59 | | Classification of International Standard | 59.080.70 | | Word Count Estimation | 14,198 | | Date of Issue | 2025-04-25 | | Date of Implementation | 2025-11-01 | | Older Standard (superseded by this standard) | GB/T 17642-2008 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | GB/T 17642-2025: Geosynthetics - Geocomposites made of geononwoven and geomembrance---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.
National Standard of the People's Republic of China
ICS 59.080.70CCS W 59
Geosynthetics
Nonwoven composite geomembrane
Geosynthetics-Geocomposites made of
Geononwoven and geomembrance
2025-04-25 Release
2025-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Replace GB/T 17642-2008
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 is required.
This document replaces GB/T 17642-2008 Geosynthetics Nonwoven Fabric Composite Geomembrane and is compatible with GB/T 17642-2008
In comparison, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) Two new product classification methods have been added. by base material and by composite process (see 4.1);
b) Product specifications are specified according to the substrate process, and the recommendation of filament spunbond needle-punched nonwoven composite geomembrane products is added
Specifications (see 4.2);
c) The product code has been changed (see 4.3, 3.3 of the.2008 edition);
d) Added three assessment indicators. "average thickness of membrane material", "CV value of unit area mass of finished product", and "ash content of membrane material"; deleted "vertical
"Vertical permeability coefficient assessment index"; "Vertical and horizontal standard strength corresponding to elongation" is changed to "Vertical and horizontal maximum load elongation",
The width deviation index requirements have been changed (see 5.2.1, 4.2.1 of the.2008 edition);
e) Added one reference indicator, “acid and alkali resistance” (see Table 2 and Table 3);
f) The specifications of short-fiber needle-punched nonwoven geomembrane composites have been changed (see 4.2.1 and Table 2, 3.2 and Table 1 of the.2008 edition);
g) Added the specifications and corresponding strength index requirements of filament spunbond needle-punched nonwoven geotextile composite geomembrane (see Table 3);
h) Added the assessment of broken needle residue in the appearance defect assessment (see Table 4);
i) The number of samples to be re-tested when the appearance quality fails to meet the standards has been changed (see 7.5.2, 6.3 of the.2008 edition);
j) Added factory inspection, type inspection and inspection items (see 7.1.1, 7.1.2 and 7.2).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China National Textile and Apparel Council.
This document is under the jurisdiction of the National Technical Committee for Standardization of Industrial Textiles (SAC/TC 606).
This document was drafted by. China Textile Standards Inspection and Certification Co., Ltd., Tiandingfeng Holdings Co., Ltd., Sinopec (Beijing) Chemical Research Institute
Co., Ltd., Shanghai Surveying and Design Institute Co., Ltd., Hongxiang New Materials Co., Ltd., Shandong Lude New Materials Co., Ltd.,
Shandong Jingxin New Materials Technology Co., Ltd., Yunnan Zhongchi Engineering Materials Co., Ltd., Shanxi Transportation Science Research Institute Group Co., Ltd., Yunnan
Zhanpeng Geotechnical Materials Manufacturing Co., Ltd., Shandong Tianhai New Materials Engineering Co., Ltd., Zhejiang Tianpeng New Materials Co., Ltd., Hubei Provincial Traffic Regulations
Planning and Design Institute Co., Ltd., China Three Gorges University, Zhongxin Construction Group Co., Ltd., Changde Tiandingfeng Nonwovens Co., Ltd., Sichuan Zhonglong
Environmental Protection Co., Ltd., Yizheng Shengli Waterproofing and Drainage Materials Co., Ltd., Shandong Jinqu Design Consulting Group Co., Ltd., Shandong Tianren New Materials
Co., Ltd., Hongcheng Synthetic Materials (Jiangsu) Co., Ltd., Changsha Jianyi New Materials Co., Ltd., Maokang Materials Technology (Changshu) Co., Ltd.,
Shandong Jiantong Plastic Technology Co., Ltd., Yixing Jiegao Nonwoven Fabric Co., Ltd., Haoyang Environmental Co., Ltd., China Railway 18th Bureau Group
Fifth Engineering Co., Ltd., Shandong Dexuda Geotechnical Materials Co., Ltd., Shandong Yingxin Geotechnical Materials Co., Ltd., Anhui Zhonglu Engineering Materials Co., Ltd.
Co., Ltd., Hunan Shengye Geotechnical Materials Manufacturing Co., Ltd., Xinjiang Jindayu Environmental Technology Co., Ltd., Guizhou Zhongchi Environmental Technology Development Co., Ltd.
Company, Tangshan Municipal Transportation Bureau Highway Management Station, and China Industrial Textile Industry Association.
The main drafters of this document are. Liu Feifei, Ding Jinhai, Zhang Pengcheng, Wu Peng, Fang Yuanyuan, Xiong Guolong, Zhu Hongsheng, Cui Zhanming, Liang Xunmei, Feng Zhongchao,
Gao Shoufu, Liu Haowu, Wu Jingjing, Wang Hua, Lü Jiansong, Li Wei, Xiao Huachun, Gao Fu, Deng Qiyan, He Yang, Zhao Baoping, Xue Tao, Zhang Yuda, Wang Jianyi,
Tang Sheng, Dai Xin, Bao Xufeng, Li Hongzhen, Zhang Jun, Zhao Ziyang, Chang Ying, Tan Yunzhi, Deng Huafeng, Ma Lei, Wang Haichang, Gao Yuqing, Zhao Shuang, Cai Wangfan,
Qiu Deming and Peng Gaiqiang.
The previous versions of this document and the documents it replaces are as follows.
--First published as GB/T 17642-1998 in.1998 and first revised in.2008;
--This is the second revision.
Geosynthetics
Nonwoven composite geomembrane
1 Scope
This document specifies the product classification, specifications and codes, technical requirements, inspection rules, packaging, storage and transportation, and labeling of nonwoven geomembranes.
The test method is described.
This document is applicable to non-woven geotextile composite geomembranes which are made of non-woven geotextile as the base material and composited with polyethylene (PE) and other membrane materials.
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 3923.1 Tensile properties of textile fabrics Part 1.Determination of breaking strength and elongation at break (strip method)
GB/T 4666 Textile fabrics - Determination of length and width
GB/T 6672 Plastic film and sheet thickness determination mechanical measurement method
GB/T 9345.1 Determination of ash content in plastics Part 1.General method
GB/T 13759 Geosynthetics Terms and Definitions
GB/T 13760 Sampling and specimen preparation for geosynthetics
GB/T 13762 Geosynthetics geotextiles and geotextile-related products - Method for determination of mass per unit area
GB/T 13763 Determination of the tearing strength of geosynthetics by the trapezoidal method
GB/T 14800 Geosynthetics static bursting test (CBR method)
GB/T 15788 Geosynthetics wide strip tensile test method
GB/T 16422.2 Plastics laboratory light source exposure test method Part 2.Xenon arc lamp
GB/T 16422.3 Plastics laboratory light source exposure test method Part 3.Fluorescent ultraviolet lamp
GB/T 16989 Geosynthetics joint/seam width tensile test method
GB/T 17630 Geosynthetics dynamic penetration test - Drop cone method
GB/T 17631 Test methods for the antioxidant properties of geotextiles and related products
GB/T 17632 Test methods for acid and alkali resistance of geotextiles and related products
GB/T 17633 Determination of in-plane water flow of geotextiles and related products
GB/T 17635.1 Determination of friction properties of geotextiles and related products Part 1.Direct shear test
GB/T 17636 Determination of abrasion resistance of geotextiles and related products - Abrasive cloth/sliding block method
GB/T 17637 Determination of tensile creep and tensile creep rupture properties of geotextiles and related products
GB/T 17638 Geosynthetics staple fiber needle punched nonwoven geotextiles
GB/T 17639 Geosynthetics Filament spunbond needle-punched nonwoven geotextiles
GB/T 17643 Geosynthetics Polyethylene Geomembrane
GB/T 19978 Determination of puncture strength of geotextiles and related products
GB/T 19979.1 Anti-seepage properties of geosynthetics Part 1.Determination of resistance to hydrostatic pressure
GB/T 19979.2 Anti-seepage properties of geosynthetics Part 2.Determination of permeability coefficient
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