GB/T 1040.1-2018 PDF English
Search result: GB/T 1040.1-2018_English: PDF (GB/T1040.1-2018)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
| GB/T 1040.1-2018 | English | 285 |
Add to Cart
|
0-9 seconds. Auto-delivery.
|
Plastics -- Determination of tensile properties -- Part 1: General principles
| Valid |
| GB/T 1040.1-2006 | English | 85 |
Add to Cart
|
0-9 seconds. Auto-delivery.
|
Plastics -- Determination of tensile properties -- Part 1: General principles
| Obsolete |
| GB/T 1040-1992 | English | 319 |
Add to Cart
|
3 days
|
Plastics-Determination of tensile properties
| Obsolete |
BUY with any currencies (Euro, JPY, GBP, KRW etc.): GB/T 1040.1-2018 Related standards: GB/T 1040.1-2018
PDF Preview: GB/T 1040.1-2018
PDF Preview: GB/T 1040.1-2006
GB/T 1040.1-2018: PDF in English (GBT 1040.1-2018) GB/T 1040.1-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.080.01
G 31
GB/T 1040.1-2018 / ISO 527-1:2012
Replacing GB/T 1040.1-2006
Plastics – Determination of Tensile Properties – Part 1:
General Principles
(ISO 527-1:2012, IDT)
ISSUED ON: DECEMBER 28, 2018
IMPLEMENTED ON: NOVEMBER 01, 2019
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 6
4 Principle and Methods ... 10
5 Apparatus ... 11
6 Test Specimens ... 15
7 Number of Test Specimens ... 17
8 Conditioning ... 17
9 Procedure ... 17
10 Calculation and Expression of Results ... 20
11 Precision ... 24
12 Test Report ... 24
Annex A (Informative) Determination of Strain at Yield ... 26
Annex B (Informative) Extensometer Accuracy for the Determination of Poisson’s
Ratio ... 29
Annex C (Normative) Calibration Requirements for the Determination of the Tensile
Modulus ... 30
Bibliography ... 32
Foreword
GB/T 1040 Plastics – Determination of Tensile Properties can be totally divided into the
following 5 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 Part is Part 1 of GB/T 1040.
This Part was drafted as per the rules specified in GB/T 1.1-2009.
This Part replaced GB/T 1040.1-2006 Plastics - Determination of Tensile Properties - Part 1:
General Principles. Compared with GB/T 1040.1-2006, the major changes of this Part are as
follows:
--- Modify the Poisson's ratio;
--- Optimize the definition and method of computer-controlled tensile testing machine;
--- The preferred gauge length of multi-purpose samples is increased from 50mm to 75mm,
especially applicable to GB/T1040.2;
--- Modify the tensile nominal strain;
--- Add the calculation method of standard strain;
--- Delete the informative Annex A “Tensile Modulus and Related Values”;
--- Add informative Annex A “Determination of Yield Strain”;
--- Add informative Annex B “Extensometer Accuracy for Determination of Poisson's
Ratio”;
--- Add normative Annex C “Calibration Requirements for Determination of Tensile
Modulus”.
This Part uses translation method to equivalently adopt ISO 527-1:2012 Plastics –
Determination of Tensile Properties – Part 1: General Principles.
The Chinese documents that have consistent correspondence with the international documents
cited in this Part are as follows:
--- GB/T 2918-2018 Plastics - Standard Atmospheres for Conditioning and Testing (ISO
291:2008, MOD)
--- GB/T 2941-2006 Rubber - General Procedures for Preparing and Conditioning Test
Pieces for Physical Test Methods (ISO 23529:2004, IDT)
This Part was proposed by China Petroleum and Chemical Industry Federation.
This Part shall be under the jurisdiction of General Methods and Products Subcommittee of
National Technical Committee on Plastics of Standardization Administration of China
(SAC/TC 15/SC 4).
Drafting organizations of this Part: National Synthetic Resin Quality Supervision and
Inspection Center; Shandong Dawn Polymer Co., Ltd.; PetroChina Research Institute of
Petroleum and Chemical Industry; Guangdong Yuanrong New Material Co., Ltd.; CGN Juner
New Materials Co., Ltd.; Chongqing Yuntianhua High-End New Materials Development Co.,
Ltd.; SINOPEC Beijing Research Institute of Chemical Industry; PetroChina Jilin
Petrochemical Company; Chengde Jinjian Testing Instrument Co., Ltd.; Shenzhen Wance
Testing Machine Co., Ltd.; Fujian Inspection and Research Institute for Product Quality;
SINOPEC Beijing Yanshan Branch of Resin Application Research Institute; and Beijing C-
Plast Chenguang Technology Co., Ltd.
Chief drafting staffs of this Part: Liu Lirong, Chen Minjian, Zhao Lei, Fan Jie, Chen Xin, Zhang
Lei, Pu Xuetao, Zhe Dongmei, Liu Honglu, Ren Yufeng, Mou Xiufa, He Peng, Zhang Yaoyue,
Chen Hongyuan, and Fang Wanpiao.
This Part replaced GB/T 1040.1-2006.
The historical editions replaced by this Part are as follows:
--- GB/T 1039-1979, GB/T 1039-1992;
--- GB/T 1040-1979, GB/T 1040-1992.
Plastics – Determination of Tensile Properties – Part 1:
General Principles
1 Scope
This Part of GB/T 1040 specifies the general principles for determining the tensile properties
of plastics and plastic composites under defined conditions. Several different types of test
specimen are defined to suit different types of material which are detailed in subsequent parts
of this Standard.
The methods are used to investigate the tensile behavior of the test specimens and for
determining the tensile strength, tensile modulus and other aspects of the tensile stress/strain
relationship under the conditions defined.
The methods are selectively suitable for use with the following materials:
— rigid and semi-rigid (see 3.12 and 3.13, respectively) molding, extrusion and cast
thermoplastic materials, including filled and reinforced compounds in addition to
unfilled types; rigid and semi-rigid thermoplastics sheets and films;
— rigid and semi-rigid thermosetting molding materials, including filled and reinforced
compounds; rigid and semi-rigid thermosetting sheets, including laminates;
— fiber-reinforced thermosets and thermoplastic composites incorporating unidirectional
or non-unidirectional reinforcements, such as mat, woven fabrics, woven rovings,
chopped strands, combination and hybrid reinforcement, rovings and milled fibers; sheet
made from pre-impregnated materials (prepregs),
— thermotropic liquid crystal polymers.
The methods are not normally suitable for use with rigid cellular materials, for which ISO 1926
is used, or for sandwich structures containing cellular materials.
2 Normative References
The following documents are 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) is applicable to this
Document.
9.2 Dimensions of test specimen
Determine the dimensions of the test specimens in accordance with ISO 16012 or ISO 23529,
as applicable.
Record the minimum and maximum values for width and thickness of each specimen at the
center of the specimen and within 5 mm of each end of the gauge length, and make sure that
they are within the tolerances indicated in the standard applicable for the given material. Use
the means of the measured widths and thicknesses to calculate the cross-section of the test
specimen.
For injection-molded test specimens, it is sufficient to determine the width and thickness within
5 mm of the center of the specimen.
In the case of injection-molded specimens, it is not necessary to measure the dimensions of
each specimen. It is sufficient to measure one specimen from each lot to make sure that the
dimensions correspond to the specimen type selected (see the relevant part of ISO 527). With
multiple-cavity molds, ensure that the dimensions of the specimens do not differ by more than
±0.25 % between cavities.
For test specimens cut from sheet or film material, it is permissible to assume that the mean
width of the central parallel portion of the die is equivalent to the corresponding width of the
specimen. The adoption of such a procedure should be based on comparative measurements
taken at periodic intervals.
For the purposes of this Part, the test specimen dimensions used for calculating tensile
properties are measured at ambient temperature only. For the measurement of properties at
other temperatures, therefore, the effects of thermal expansion are not taken into account.
9.3 Gripping
Place the test specimen in the grips, taking care to align the longitudinal axis of the test
specimen with the axis of the testing machine. Tighten the grips evenly and firmly to avoid
slippage of the test specimen and movement of the grips during the test. Gripping pressure shall
not cause fracture or squashing of the test specimen (see NOTE 2).
NOTE 1: Stops can be used to facilitate alignment of the test specimen, especially in manual operation.
For gripping test specimens within a temperature chamber, it is recommended to close initially only one
grip and to tighten the second one only after the temperature of the test specimen is equilibrated, unless
the machine is capable of continuously reducing thermal stress if it arises.
NOTE 2: Fracture in the grips can happen, for example, when testing of specimens after heat aging.
Squashing can occur in tests at elevated temperatures.
9.4 Prestresses
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
|