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GB/T 33831-2017

Chinese Standard: 'GB/T 33831-2017'
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Detail Information of GB/T 33831-2017; GB/T33831-2017
Description (Translated English): Coated glass fiber products -- Determination of resistance to creasing and folding behaviour
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q36
Classification of International Standard: 59.100.10
Word Count Estimation: 5,540
Date of Issue: 2017-05-31
Date of Implementation: 2018-04-01
Quoted Standard: GB/T 7689.5
Drafting Organization: Nanjing Glass Fiber Research and Design Institute Co., Ltd., the national glass fiber product quality supervision and inspection center
Administrative Organization: National Standard Committee on Glass Fiber Standardization (SAC/TC 245)
Proposing organization: China Building Materials Federation
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, China National Standardization Administration Committee
Summary: This standard specifies the principle, instrument, sample, operation, test result and test report of the glass fiber coating products. This standard applies to glass fiber cloth as the substrate coated with polyvinyl chloride, polyurethane, fluorine resin, chloroprene rubber or chlorosulfonated polyethylene rubber and other products.

GB/T 33831-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.100.10
Q 36
Coated Glass Fiber Products – Determination
of Resistance to Creasing and Folding Behavior
玻璃纤维涂覆制品 耐压折性能的测定
ISSUED ON. MAY 31, 2017
IMPLEMENTED ON. APRIL 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
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Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Principle ... 4
4 Apparatus ... 4
5 Specimen ... 6
6 Operation ... 6
7 Test Results ... 7
8 Test Report ... 7
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard was proposed by China Building Material Federation.
This Standard shall be under the jurisdiction of National Technical Committee for
Standardization of Glass Fiber (SAC/TC 245).
Drafting organizations of this Standard. Nanjing Fiberglass Research & Design
Institute Co., Ltd., and China National Fiberglass Product Quality Supervision & Testing
Center.
Chief drafting staffs of this Standard. Hao Zhengtao, Xu Qi, Fang Yunwei, Huang Ying,
Wang Yumei, Ma Dan, and Li Junguang.
Coated Glass Fiber Products – Determination
of Resistance to Creasing and Folding Behavior
1 Scope
This Standard specifies the principle, apparatus, specimen, operation, test results and
test report for determination of resistance to creasing and folding behavior of coated
glass fiber products.
This Standard is applicable to the products using glass fiber cloth as the substrate
coated with polyvinyl chloride, polyurethane, fluorine resin, chloroprene rubber or
chlorosulfonated polyethylene rubber.
2 Normative References
The following document is essential to the application of this document. For the dated
documents, only the versions with the dates indicated are applicable to this document;
for the undated documents, only the latest version (including all the amendments) are
applicable to this document.
GB/T 7689.5 Reinforcements – Test Method for Woven Fabrics – Part 5.
Determination of Tensile Breaking Force and Elongation at Break for Glass Fiber
3 Principle
Fold the elongated specimen in the length direction; use roller to roll in the length
direction for several times; unfold the specimen and measure its tensile breaking force;
use the retention rate of tensile breaking force to represent the resistance to creasing
and folding behavior of the products.
4 Apparatus
4.1 The example of creasing and folding roller can refer to Figure 1.
The roller shall be made of stainless steel, its surface shall be smooth with diameter of
(90±1) mm, width of (100±1) mm; the tray for placing the counterweight shall be
equipped with to ensure the creasing and folding force of the roller acting on the folding
7 Test Results
Take the breaking load per unit width as the tensile breaking force (N/mm) of the
specimen; respectively calculate the average value of warp and weft tensile breaking
force of the initial specimen and specimen through treatment; and calculate the
retention rate of tensile breaking force, which shall reserve one digit after decimal.
8 Test Report
The test report shall include the following contents.
a) Instructions are based on this Standard;
b) Identify the necessary details of the sample to be tested;
c) The Number of specimen;
d) Humidity control and test environment;
e) Tester type......
Related standard:   GB/T 33832-2017  GB/T 33837-2017
   
 
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