Do you know the standard for button testing?

​Do you know the standard for button testing?
As the most widely used accessories in clothing products, the nature of buttons will affect the comfort and beauty of the wearing process, especially the use of children's clothing, especially attention. Therefore, the national inspection unit of button detection standards are very strict.
The first is: tensile testing, the test is to test the main fastener capacity, it is divided into two steps:
1, instantaneous tensile testing, mainly used to buckle, D buckle, buckle, suddenly encountered strong tension test, the strength of fastener.
2, persistent tensile testing, its main principle in determining the load of a certain weight, buckle under time value.
3, on the plug button, as well as the use of frequency testing, non-stop opening and closing, to test how many times, the plug will be deformed.
The three direction or multi direction insertion button detection is more complicated.
The second is: the temperature test, the main test is buckle in the unconventional temperature stress under high temperature and low temperature, divided into two kinds
1, high temperature is usually set at 70 degrees Celsius
2, low temperature is usually set at 30 degrees below zero. Time is 24 hours, then test the change of intensity.
Third: is the salt spray test, this test is mainly anti salinity monitoring buckle device, some products can only transport by sea, sea running for a long time, have impact on the quality of the product, the test is divided into two steps.
1, the fastener placed in seawater for 72 hours
2, the buckle soaked exposure 5-7 days in the sun
3, after the test, the strength of the test has changed too much?.
There are some such as acid test, according to the different needs and material to carry out the corresponding numerical test, the buckle on metal but also to its anti rust, corrosion resistance, resistance test, plastic buckle if there were products after processing, such as electroplating, dyeing water, oil and other processes. To further test whether these additional process standards.

Of course, there is a higher standard of testing used in diving and other extreme sports, what the UL certification, TS16949 certification, VDA6.0 standard, it is not generally through the fastener manufacturers. The above is to buckle on, with the continuous development of products, varieties are increasingly diversified, the detection is also more and more strict.