Welcome to Qinsun Instruments Co., Limited.
- +86-21-6780 0179 |
- info@qinsun-lab.com |
- Customer Services
The falling hammer tear strength tester is an experimental equipment independently developed and produced by our company QINSUN Tear strength test of protective clothing, hammer: A-800g, B-1600g, C -3200g, D-6400g.
Test principle:
The sample is fixed at the clamp, cut a slit in the sample, release the pendulum at the position of resisting the potential energy, when the movable clamp leaves the fixed clamp, the sample is torn towards the incision, and the work is done by to tear a certain length of fabric is the tear force breaking force.
Applicable standard:
IOS3917.1 Tear properties of fabric Part 1 Determination of tear strength Impact Pendulum method
ISO13937.1 Tear and tear properties of fabric Part 1 Determination of tear strength by pendulum method
ASTMD1424 Determinationng of tear strength by pendulum pendulum method (Elmendorf)
JISL1096Section8.15.5, MethodD Tear resistance of woven fabrics Pendulum method for tear strength test
JISL1018Section8.16.1, MethodA Pendulum method for tear strength test of knitted fabric
Ambient humidity control:
1. The sample humidity control and test must be take place in an environment with a temperature of 21 ± 1 ° C and a relative humidity of 65 ± 2%
2. The samples must be equilibrated in the above environment for a minimum of 4 hours before testing;
3. The monsters cannot be stacked during debugging.Sample preparation:
1. Take 5 samples in each of the warp (longitudinal direction) and weft (width direction) and make sure that each test sample in the same direction does not contain the same warp and weft.
2. When cutting the sample, if it is solid color cloth,the yarn at the edge of the sample should be removed and the sample preparation template should be positioned so that the short side is parallel to the yarn in the opposite direction to be tested. That is, if the warp yarn is to be tested, the short side of the template should be parallel to the weft yarn; if the weft yarn is to be tested, it should be parallel to the warp yarn.
3. The sample should be taken at least 6 inches from the edge of the selvedge, and the direction of warp should be marked with ↑ on the cut test sample.
QINSUN, as a modern technology enterprise integrating RD, production, sales, training and service, is committed to bringing more humanized testing instruments to the market and long-term textile, leather, burn Non-standard customization is also acceptable, and targeted testing can be done according to requirements before purchaseof the customer to ensure that the purchased instruments are suitable. Shanghai QINSUN Precision Electromechanical Technology Co., Ltd. is a factory of QINSUN
