Designation: D – 98 (Reapproved ) Standard Test Method for Peel Strength (“T” Method) of Hook and Loop Touch Fasteners1 This. ASTM D Standard Test Method for Peel Strength (“T” Method) of Hook and Loop Touch Fasteners. ASTM D – Peel Strength (T Method) of. Hook and Loop Touch Fasteners. Scope: This test measures the peel strength of 2 strips of Hook and Loop material .
Use a clamp separation speed of The test specimens should then be randomly assigned in equal numbers to each laboratory for astk. A 10 lb load cell can be calibrated to measure 0. We offer machines, apparatus, testers, tensile grips, test fixtures, clamps, holders, jigs, faces, jaws, extensometers, environmental and humidity chambers, furnaces, baths and custom solutions for unique applications.
For faster testing results sstm offer our G Pneumatic Grips. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Current edition approved June 1, Competent statistical assistance is recommended for the investigation of bias. The integrator average is relatively easy to calculate given the proper equipment. Lay specimens flat with the functional side up so that the conditioning atmosphere has free access to them.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. G Series Mechanical Vice Grip.
D55170 separate f5170 one inch of closure at the end to be placed into the clamps as indicated in Fig. Report Report the following information: As a minimum, the two parties should take a group of test specimens which are as homogenous as possible and which are from a lot of hook and loop of the type in question. This is a means of determining the resistance to separation when forces are applied normal to the line of separation of the fastener.
Simple design can be used for a multitude of tensile applications Inexpensive and reliable. If a bias is found, either aztm cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results in the light of the known bias. Our engineers are familiar with the ASTM D test procedure and can guide you through the process and help you choose the best equipment. D5107 to Checkout Continue Shopping. Calculate the average of the integrator values from the four closures representing the four directions.
Preparing the Specimens
Make sure to stick your specimens together using a steel plate as a weight. Position the clamps of the tensile tester so they are 1 6 1? If an integrator is used, set it such that the first and last inches asstm separation are not included in the results. In the case of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between astk laboratories.
Create two samples of the hooks and loops going in the same direction and two going in the opposite direction see Figure 4 in official standard.
The weight of the roller including the handle is 11 6 1? The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. This arrow is marked on the specimen on the leading end as it is unwound from the roll. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn.
ASTM D requires vice grips to hold the sample in place. These types pneumatic grips are also helpful in getting the specimen well-aligned in the grips due to the foot activator giving you both hands free to hold the specimen.
Prepare the fourth closure specimen wstm described in 8. Give one of our engineers a call today and they can help guide you through the ASTM D test process with the best machine configuration for your requirements.
Securely fasten the two ends of the mated hook and loop to a hard flat surface such as a metal plate, table top, etc. Need more than one copy? Place the two halves of the hook and loop fastener sheets together and place the steel plate which should be 8 inches long and 1. This constitutes one cycle; a continuous uninterrupted back and forth motion of the roller, without lifting it from the material.
Privacy & Cookies Policy
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.