1 Scope
This standard specifies the test method for the heat sealing strength of plastic-film packaging bag.
This standard is applicable to the heat sealing strength measurement of various plastic-film packaging bag.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB 2918-82 Plastics--Standard Atmospheres for Conditioning and Testing
3 Equipments and measuring instruments
3.1 Equipments
Tension tester: the actual measurement indication shall be between 15% ~ 85% the dial full scale and the reading indication error shall be within ± 1%
3.2 Measuring instrument
Vernier calipers: its precision is 0.02mm.
Ruler: its precision is 1 mm.