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GB/T 33622-2017 English PDF

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GB/T 33622-2017: Flexible cellular polymeric materials -- Low-temperature flex test
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PDF similar to GB/T 33622-2017


Standard similar to GB/T 33622-2017

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Basic data

Standard ID GB/T 33622-2017 (GB/T33622-2017)
Description (Translated English) Flexible cellular polymeric materials -- Low-temperature flex test
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G32
Classification of International Standard 83.100
Word Count Estimation 5,594
Date of Issue 2017-05-12
Date of Implementation 2017-12-01
Quoted Standard GB/T 2918-1998; GB/T 6342-1996
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the test method for the determination of low temperature flexibility of flexible foamed polymeric materials. This standard is suitable for the determination of low temperature flexibility of soft foam polymer materials.

GB/T 33622-2017: Flexible cellular polymeric materials -- Low-temperature flex test

---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.
Flexible cellular materials - Low-temperature flex test ICS 83.100 G32 National Standards of People's Republic of China Standard Test Method for Low Temperature Flexibility of Soft Foam Polymer Materials 2017-05-12 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The release of this document The Agency does not assume responsibility for identifying these patents. This standard is proposed by the China Light Industry Federation. This standard is under the jurisdiction of the National Standardization Technical Committee for Plastics (SAC/TC48). The drafting of this standard. Jiangsu Institute of Chemical Industry Co., Ltd., Zhejiang Shengnuo Union Gujia Sponge Co., Ltd., Jiangsu Lvyuan new materials Limited, Hangzhou Chuangli Polyurethane Co., Ltd., Beijing Technology and Business University, Jiangsu Province, Polyurethane Product Quality Supervision and Inspection Station, Jiangsu Jianghua Polyurethane Product Quality Inspection Co., Ltd., Nanjing Poly Detection Technology Co., Ltd. The main drafters of this standard. Wu Hao, Zhang Yuan, Qian Hongxiang, Lin Yongfei, Yin Jian, Chen Qian, Ni Xinxing, Zheng Jing. Standard Test Method for Low Temperature Flexibility of Soft Foam Polymer Materials

1 Scope

This standard specifies the test method for the determination of low temperature flexibility of flexible foamed polymeric materials. This standard is suitable for the determination of low temperature flexibility of soft foam polymer materials.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. Standard environment for state adjustment and testing of plastic specimens GB/T 2918-1998 Determination of linear dimensions of foam and rubber GB/T 6342-1996

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Low temperature flexibility Low-temperatureflex After the specimen has been placed at a predetermined low temperature for a predetermined time, it is bent 180 ° along the circumference of the mandrel (shown in Figure 1) and then removed Specified breakdown. Figure 1 Schematic diagram of sample bending

4 principle

After the specimen has been placed under the specified low temperature for a predetermined time, it is wound on the mandrel to bend, and then the observed specimen is damaged, To reflect the low temperature flexibility of the sample.

5 instruments

5.1 low temperature test chamber To meet the requirements of 8.1 test conditions of any low temperature test chamber. If the test chamber uses dry ice as a refrigerant for freezing, the sample does not

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