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GB/T 33338-2016: Test methods of twist for dipped yarns and cords
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 33338-2016 | English | 119 |
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Test methods of twist for dipped yarns and cords
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GB/T 33338-2016
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Basic data | Standard ID | GB/T 33338-2016 (GB/T33338-2016) | | Description (Translated English) | Test methods of twist for dipped yarns and cords | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G47 | | Classification of International Standard | 83.140.99 | | Word Count Estimation | 6,633 | | Date of Issue | 2016-12-13 | | Date of Implementation | 2017-07-01 | | Regulation (derived from) | National Standard Notice No.203 of 2016 | | 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 | GB/T 33338-2016: Test methods of twist for dipped yarns and cords---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.
Test methods of twist for dipped yarns and cords
ICS 83.140.99
G47
National Standards of People's Republic of China
Test method for twist yarn, cord and cord twist test
2016-12-13 released
2017-07-01 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.
This standard is proposed by the China Petroleum and Chemical Industry Association.
This standard by the National Rubber and Rubber Products Standardization Technical Committee dipping skeleton material sub-technical committee (SAC/TC35 /
SC13).
The drafting of this standard. Zhejiang Hai Men Men Rubber Co., Ltd., Qingdao New Materials Technology Industrial Park Development Co., Ltd., Jinhua City, sub-wheel
Fiber Co., Ltd., Ningbo Karcher Tape Co., Ltd., Qingdao Sanxiang Technology Co., Ltd., Qingdao University of Science and Technology.
The main drafters of this standard. Gong Guoyong, Wang Bingxin, Xiang Jun, Ying Jianli, Wang Tao, Liu Li, Zhang Qiming.
Test method for twist yarn, cord and cord twist test
1 Scope
This standard specifies the test method for the determination of dipped yarns, cord and cord twist made of chemical fiber or inorganic fiber material.
This standard applies to the determination of dipped yarns, cord and cord twist, and other non-dipped yarns, cord and cord twist can also be measured
According to the implementation.
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.
GB/T 6529 Standard atmosphere for textiles for humidity control and testing
Representation and Judgment of Numerical Correction Rule and Limit Value of GB/T 8170
3 test principle
Under the specified pre-tensioning force, the specimen is fixed in the holder of one end of the twister, and the holder of the other end of the twist is rotated
The twist of the sample in the specified length until the strands or monofilaments in the sample are parallel, observe the twist direction and read the twist value.
4 instruments and tools
4.1 twist meter
The twist test shall be carried out using a twist meter, which shall meet the following requirements.
a) with two grippers, one of which can be connected to the twist meter motor shaft can rotate in the direction of rotation in both directions but not
Can move, the other movable holder can adjust the sample clamping length but can not rotate;
b) the number of revolutions of the rotary counter should be recorded or displayed to the nearest one;
c) with twist indicator;
d) with the measurement of the length of the sample scale, the accuracy of 1mm;
e) a device having a pre-tension applied to the sample.
4.2 Tools
Analysis needle.
5 Test General
5.1 Test environment
The test shall be carried out in the standard atmospheric environment specified in GB/T 6529.
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