Rubber or plastics-coated fabrics. Determination of stitch tear resistance (using a needle). Test method Ingestion-build-58320 Basic requirements for gel ink

Basic requirements for gel ink ball pens for general use are given in ISO 27668-1

and the materials rubber

BS 7F 8 on Mercerized cotton fabrics and serrated edge strip is useful for:

not dealt with in this document

Overpressure test

Rubber or plastics-coated fabrics. Determination of stitch tear resistance (using a needle). Test method Ingestion-build-58320 Basic requirements for gel ink1 Scope This European Standard specifies a method for the determination of the resistance of the seams of rubber or plastic coated fabrics against tearing out a needle perpendicular to the stitching direction. This resistance is characterized by determining the stitch tear force.