Ключевые слова:
Test specimens|Sample location|Elongation at fracture|Calendering|Thickness measurement|Visual inspection (testing)|Optical properties of materials|Sulfur|Samples|Adhesion|Thickness|Extensibility|Holes|Polyvinyl chloride|Printing|Marking|Stain tests|Dimensional changes|Flexible materials|Statistical quality control|Heat ageing tests|Mechanical testing|Tear tests|Polymers|Test equipment|Sheet materials|Embossed|Strength of materials|Tensile strength|Plastics