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Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics
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Plastic -- Determination of tensile properties -- Part 2: Test conditions for moulding and extrusion plastic
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GB/T 1040.2-2022: Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics
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GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.080.01
CCS G 31
Replacing GB/T 1040.2-2006
Plastics – Determination of Tensile Properties – Part 2.Test
Conditions for Moulding and Extrusion Plastics
(ISO 527-2.2012, MOD)
Issued on. JULY 11, 2022
Implemented on. FEBRUARY 01, 2023
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
Introduction... 6
1 Scope... 7
2 Normative References... 7
3 Terms and Definitions... 8
4 Principle and Methods... 8
5 Apparatus... 8
6 Test Specimens... 9
7 Conditioning... 10
8 Procedure... 10
9 Calculation and Expression of Results... 11
10 Precision... 11
11 Test Report... 11
Annex A (Informative) Small Specimens... 13
Annex B (Informative) Precision Statement... 15
Bibliography... 23
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This Document is Part 2 of GB/T 1040 Plastics – Determination of Tensile Properties, which
has published the following parts.
--- Part 1.General Principles;
--- Part 2.Test Conditions for Molding and Extrusion Plastics;
--- Part 3.Test Conditions for Films and Sheets;
--- Part 4.Test Conditions for Isotropic and Orthotropic Fiber-Reinforced Plastic
Composites;
--- Part 5.Test Conditions for Unidirectional Fiber-Reinforced Plastic Composites.
This Document replaced GB/T 1040.2-2006 Plastics - Determination of Tensile Properties -
Part 2.Test Conditions for Moulding and Extrusion Plastics. Compared with GB/T 1040.2-
2006, the major technical changes are as follows besides the structural adjustments and editorial
modifications.
--- Add the 75mm gauge length of the specimen (see 5.2 of this Edition);
--- Add the requirements for the accuracy of the extensometer when using different gauge
lengths to determine the modulus (see 5.2 of this Edition);
--- Add the inter-lab precision data in China (see B.3 of this Edition).
This Document modified and adopts ISO 527-2.2012 Plastics – Determination of Tensile
Properties – Part 2.Test Conditions for Mouilding and Extrusion Plastics.
The major technical differences and their causes between this Document and ISO 527-2.2012
are as follows.
--- For the Normative References, this Document has made adjustments with technical
differences to adapt to the technical conditions of China. The adjustments are reflected
in Clause 2 “Normative References”. The specific adjustments are as follows.
Use GB/T 1040.1-2018 that equivalently adopts the international standard to replace
ISO 527-1.2012;
Use GB/T 5471 that equivalently adopts the international standard to replace ISO
295;
Use GB/T 9352 that equivalently adopts the international standard to replace ISO
293;
Use GB/T 17037.1 that modifies and adopts the international standard to replace
ISO 291-1;
Use GB/T 37426 that modifies and adopts the international standard to replace ISO
20753;
Use GB/T 39812 that equivalently adopts the international standard to replace ISO
2818.
--- Add the requirements for the accuracy of the extensometer when using different gauge
lengths to determine the modulus (see 5.2 of this Document), which is consistent with
ISO 527-1.2019.
--- Add the inter-lab precision data in China as the content of B.3, so that adapt to the actual
situation of China.
This Document made the following editorial modifications.
--- Adjust the precision data in Tables B.1 ~ B.4 of Annex B in ISO 527-2.2012 to Tables
B.6~B.9.
Please note some contents of this Document may involve patents. The issuing agency of this
Document shall not assume the responsibility to identify these patents.
This Document was proposed by China Petroleum and Chemical Industry Federation.
This Document shall be under the jurisdiction of National Technical Committee on Plastics of
Standardization Administration of China (SAC/TC 15).
Drafting organizations of this Document. Zhonglan Chenguang Chengdu Detection Technology
Co., Ltd.; China Energy Yulin Chemical Co., Ltd.; Shandong Wanda Chemical Industries Co.,
Ltd.; PetroChina Sichuan Petrochemical Co., Ltd.; Guangzhou Synthetic Materials Research
Institute Co., Ltd.; Shandong Chambroad Petrochemical Co., Ltd.; PetroChina Daqing Refining
& Petrochemical Company; Shandong Nonmetallic Materials Institute; Shaanxi Yanchang Coal
Yulin Energy and Chemical Co., Ltd.; CGN-Delta (Taicang) Testing Technology Co., Ltd.;
Kingfa Sci. & Tech. Co., Ltd.; Shandong Dawn Polymer Co., Ltd.; Shenzhen Wance Testing
Machine Co., Ltd.; Weihai Lianqiao New Material Science and Technology Co., Ltd.; Chengde
Precision Testing Machine Co., Ltd.; SINOPEC Shanghai Petrochemical Company Limited;
Fujian Example EOE Group Co., Ltd.; Suzhou SUNPOLY Co., Ltd.; CGN Juner (Zhejiang)
New Materials Co., Ltd.; Zhejiang Xinli New Material Co., Ltd.; Institute of Analysis and
Testing, Beijing Academy of Science and Technology (Beijing Center for Physical & Chemical
Analysis); Qingdao Product Quality Supervision and Testing Research Institute; SINOPEC
Research Institute of Petroleum Processing; Beijing C-Plast Chenguang Technology Co., Ltd.;
Beijing Yanshan Petrochemical High-Tech Company Limited; Guangzhou Quality Supervision
and Testing institute; SINOPEC Yanshan Branch, Beijing Research Institute of Chemical
Industry; Qingdao Aohairuitai Industrial Co., Ltd.; SINOPEC Shanghai Gaoqiao Petrochemical
Co., Ltd.; Pingdingshan Shenma Engineering Plastics Co., Ltd.; PetroChina PetroChemical
Research Institute; Chongqing Yuntianhua Tianju New Material Co., Ltd.; Xinjiang Turpan
Natural Environmental Test Research Center; PetroChina Lanzhou Petrochemical Industry
Company; Suzhou Runjia Engineering Plastics Co., Ltd.; Orinko Advanced Plastics Co., Ltd.;
SINOPEC Qilu Company; Shanghai Huace Pinbiao Testing Technology Co., Ltd.; Ningbo
Customs District Technology Center; and PetroChina Daqing Petrochemical Industry Company.
Chief drafting staffs of this Document. Wang Boen, Liu Lirong, Zhang Yachun, Xie Fengming,
Zhang Zhongming, Liu Xiaodan, Zhao Yongchen, Xu Peng, Meng Xiangyan, Wang Huineng,
Li Jianxi, Tong Wei, Zhao Lei, Mou Xiufa, Geng Jianjia, Wang Xinhua, Quan Naijia, Zhang
Musheng, Wang Haili, Zhang Lei, Ye Yaoting, Guo Xia, Cheng Dong, Huang Qizhong, Guo
Lingxiao, Wang Xinglian, Zhou Cheng, Zhang Mei, Yu Feng, Chen Hongyuan, Xing Jin, Zhang
Yaoyue, Chen Weili, Li Xiaozeng, Guo Xi, Xing Guizheng, Shou Weidong, Qin Xinying, Zhang
Cuiling, Pu Xuetao, Guo Chunyun, Song Dan, Wang Liwen, Yi Qingfeng, luan Ling, Jin Feng,
Luo Chuan, Wang Xiaobing, Zhang Wei, and Liu Xuesong.
This Document was first-time published in 1979; first-time revised in 1992; second-time
revised in 2006; and it is third-time revised hereby.
1 Scope
This Document specifies the test conditions for determining the tensile properties of moulding
and extrusion plastics, based upon the general principles given in GB/T 1040.1.
This Document is applicable to the following range of materials.
2 Normative References
The provisions in following documents become the essential provisions of this Document
through reference in 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) is applicable to this Document.
GB/T 1040.1-2018 Plastics - Determination of Tensile Properties - Part 1.General
Principles (ISO 527-1.2012, IDT)
3 Terms and Definitions
For the purposes of this Document, the terms and definitions given in GB/T 1040.1-2018 apply.
4 Principle and Methods
The principle and methods described in GB/T 1040.1-2018 is applicable to this Document.
5 Apparatus
Increasing the gauge length leads to higher accuracy, especially for the modulus determination.
For a gauge length of 75mm, the accuracy required for modulus determination is ±1% and the
absolute accuracy of the elongation is ±1.5μm; the absolute accuracy of the elongation
measurement for a gauge length of 50mm and below is ±1μm.
6 Test Specimens
Test specimens shall be either directly injection- or compression-moulded from the material in
accordance with GB/T 9352, GB/T 17037.1, GB/T 5471 or ISO 10724-1, as appropriate, or
machined in accordance with GB/T 39812 from plates that have been compression- or
injection-moulded from the compound, or obtained from cast or extruded plates (sheet).
7 Conditioning
See GB/T 1040.1-2018, Clause 8.
8 Procedure
See GB/T 1040.1-2018, Clause 9.
For measurement of the tensile modulus (see GB/T 1040.1-2018, 3.9), the speed of testing shall
be 1 mm/min for specimen types 1A and 1B (see Figure 1). This corresponds to a strain rate of
approximately 1 % min-1.For small specimens see Annex A.
9 Calculation and Expression of Results
See GB/T 1040.1-2018, Clause 10.
10 Precision
See Annex B (informative).
11 Test Report
The test report shall include the following information.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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