The Grab Test, also known as the Grab Tensile Test, is a widely used method for evaluating the tear strength and elongation of textile fabrics. This test measures the maximum force required to tear a fabric sample and the elongation at that force. The results can provide valuable information about the durability and performance of a fabric.

The Grab Test is described in the DIN EN ISO 13934-2 standard, which specifies the testing procedure for woven fabrics. However, it can also be used for other types of fabrics, such as knitted or non-woven fabrics.

To perform the test, five samples are cut from a rectangular fabric sample measuring 200 mm x 100 mm in both the warp and weft directions. Each sample is then clamped in a tensile testing machine and pulled until it tears. The maximum force required to tear the sample is recorded and used to calculate the tear strength. The elongation at maximum force is also measured and recorded.

The results are typically reported as an average of the five individual measurements in units of Newtons (N), and a force of 10 N is equivalent to 1 daN or 9.81 N is equivalent to 1 kg.

The Grab Test is a useful tool for evaluating the strength and durability of fabrics. By testing a sample, manufacturers can determine, if a fabric is suitable for a particular application and ensure that it meets industry standards. It is important to follow the testing procedure carefully to obtain accurate and reliable results.