Tear strength determination:

1. Number of samples: longitudinal and transverse

2. Sample size:

3. Spacing:

4. Test speed:

5. Test steps:

1) Adjust the spacing between the two clamps to 75mm.

2) Install the two legs of the sample so that the center of the sample main axis and the connecting line of the clamp coincide.

3) Set the required test speed, start the test machine and record the load required to extend the crack beyond the length of the uncut sample.

6. The test result is the arithmetic mean of the maximum load of the three samples, accurate to 0.1N. Polyurethane synthetic leather (Polyurethane Synthetic Leather) belongs to a class of polyurethane elastomers. It has a soft, natural gloss, soft feel, and a strong leather feel. It has excellent mechanical properties such as excellent adhesion to the substrate, wear resistance, flex resistance, and anti-aging. It also has the advantages of good cold resistance, breathability, washability, easy processing, and low price. It is the most ideal substitute for natural leather.

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms
 
3. Used as a sales report: issuing legally effective testing reports to make consumers more confident
 
4. Papers and research: Provide professional personalized testing needs
 
5. Judicial services: providing scientific, fair, and accurate testing data
 
6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems
 

100% inspection and testing process:

1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations
 
3. Mail samples and arrange testing
 
4. Progress tracking and result feedback
 
5. Provide reports and after-sales service
 
6. If urgent or priority processing is required
 

Testing and testing characteristics:

1.The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby
 
3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service
 
7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc
 
8. The testing report is authoritative and effective, and is generally used in China