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QB/T 1130-1991 PDF English

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QB/T 1130-1991: Plastics Angle Tear Performance Test Method
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GB/T 1040.2   GB/T 1040.3   QB/T 4008   

QB/T 1130-1991: Plastics Angle Tear Performance Test Method

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QB LIGHT INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Plastics Angle Tear Performance Test Method APPROVED ON: JUNE 04, 1991 IMPLEMENTED ON: JANUARY 01, 1992 Approved by: Ministry of Light Industry of PRC

Table of Contents

1 Theme Content and Applicable Scope ... 3 2 Normative References ... 3 3 Principle ... 3 4 Test Apparatus ... 3 5 Specimen ... 3 6 Standard Environment for Condition Adjustment and Test of Specimen ... 4 7 Test Procedures ... 4 8 Representation of the Results ... 5 9 Test Report ... 5 Additional Information: ... 6 Plastics Angle Tear Performance Test Method

1 Theme Content and Applicable Scope

This Standard specifies the test method for the right-angle tear performance of plastic films and sheets. This Standard is applicable to plastic films, sheets and other similar plastic materials.

2 Normative References

GB 1040 Plastics - Determination of Tensile Properties GB 2918 Plastics - Standard Atmospheres for Conditioning and Testing GB 6672 Determination of Thickness of Plastic Film and Sheeting by Mechanical Scanning

3 Principle

Apply a tensile load to the standard specimen to make the specimen tear at the right- angle mouth; and measure the tear load or tear strength of the specimen.

4 Test Apparatus

4.1 A tensile testing machine that meets the requirements of GB 1040 and can meet the requirements of test speed. 4.2 A thickness measuring instrument that meets the requirements of GB 6672.

5 Specimen

5.1 The shape and size of the specimen are shown in the following Figure:

8 Representation of the Results

8.1 Take the maximum load value during the tearing process of the specimen as the right-angle tearing load, in N. 8.2 The right-angle tear strength is calculated as follows: Where: σtr – right-angle tear strength, in kN/m; P – tearing load, in N; d – thickness of specimen, in mm. 8.3 The test results are expressed by the arithmetic mean of the right-angle tearing load or right-angle tear strength of all specimens. The significant figures of the test results are two digits or determined as per the product standard.

9 Test Report

The test report shall include the following: a. The name and number of this Standard; b. Description of sample type, production date, etc.; c. The direction of the specimen: If necessary, indicate the thickness of each specimen or overlapping specimen group, as well as the average thickness and quantity of the specimen or overlapping specimen group; d. If an overlapping specimen group is used, it shall be indicated; e. Test result: If necessary, indicate the test result and standard deviation of a single specimen; f. Test date; g. The cases that the specimens and tests are inconsistent with this Standard or not specified in this Standard. ____________________ ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.