TEAR PROPERTIES OF FABRICS
The EN ISO 13937 test method determines the tear force of textile samples in the shape of pants using the sole tear method.
EN ISO 13937 TEST METHOD REQUIREMENTS
TEST METHOD
DESCRIPTION
MINIMUM COMPLIANCE VALUES
EN ISO 13937-2
Part 2: Determination of the tear force of samples in the shape of pants (Sole tear method).
For each fabric, 5 samples are tested in the warp direction and 5 samples in the weft direction.
This trial is also called the pants method, given that the sample is cut in that shape.
The sample is set in the clamps, with a “leg” in each of them. The dynamometer is started with a constant speed of 100 mm/min, setting one of the clamps in motion (moving clip). The tear continues until the spot marked 2.5 cm from the edge of the fabric is reached.
Breakage calculation: for each of the samples analysed, the resulting chart will be divided into 4 equal parts. The first one will be disregarded and the result will be calculated based on the other three values.