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QB/T 2358-1998 English PDF (QBT2358-1998)

QB/T 2358-1998 English PDF (QBT2358-1998)

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QB/T 2358-1998: Test Methods for Thermal Sealing Strength of Plastic Film Packaging Bag

This Standard specifies the test methods for thermal sealing strength of plastic film packaging bag. This Standard is applicable to the determination of thermal sealing strength for various plastic film packaging bags.
QB/T 2358-1998
QB
NATIONAL LIGHT INDUSTRY STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
Classification No.. Y 28
Record No.. 1372-1998
Test Methods for Thermal Sealing
Strength of Plastic Film Packaging Bag
ISSUED ON. MARCH 27, 1998
IMPLEMENTED ON. DECEMBER 1, 1998
Issued by. China Light Industry Association
3. No action is required - Full-copy of this standard will be automatically and immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Equipment and Measuring Gauges ... 4
4 Specimen ... 4
5 Test Procedures ... 6
6 Calculation ... 6
7 Test Report ... 6
Foreword
This Standard was modified on the basis of professional standard ZBY 28004-86 Test Methods for Thermal Sealing Strength of Plastic Film Packaging Bag.
This Standard nonequivalent adopted Japanese industry standard JIS Z 0238-1995 Test Method for Sealed Flexible Packaging Bag.
This Standard added the specimen measurement method; added test conditions in the test report.
This Standard was proposed by Quality Standard Department of China Light Industry Association.
This Standard shall be under the jurisdiction of National Standardization Center of Plastics.
Drafting organization of this Standard. Jilin Plastics Research Institute. Chief drafting staffs of this Standard. Dong Xiaowei, Gao Yunxue, Yu Yan, Jiang Shulan, and Zhao Lili.
This Standard replaced ZBY 28004-86 since the date of implementation.
Test Methods for Thermal Sealing
Strength of Plastic Film Packaging Bag
1 Scope
This Standard specifies the test methods for thermal sealing strength of plastic film packaging bag.
This Standard is applicable to the determination of thermal sealing strength for various plastic film packaging bags.
2 Normative References
The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. At the time of publication, the editions indicated are valid. All standards are subject to revision. The parties who are using this Standard shall explore the possibility of using the latest version of the following standards. GB 2918-82 Plastics ?€? Standard Atmospheres for Conditioning and Testing 3 Equipment and Measuring Gauges
3.1 Equipment
Tensile tester. the actually-measured indication shall be in the range of 15% ~ 85% of the full scale of the dial; and the reading indication error shall be within ??1%. 3.2 Measuring gauges
Vernier caliper. accuracy of 0.02mm.
Ruler. accuracy of 1mm.
4 Specimen
4.1 Sampling position
As shown in Figure 1, take samples from the side, back, top and bottom of the plastic

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