This standard specifies five methods of calculating, after testing, the tear strength and adhesion strength of vulcanized rubber or fabrics coated with or adhered to rubber or plastics. The results are calculated by determining the median and range of peak values from a graphical plot of force versus time recorded during the test.
A trace for an adhesion strength test or tear strength test may show few or many force peaks, depending on the material under investigation. The choice of the method of calculation depends on the number of peaks in the trace.
The purpose of this standard is to obtain more uniformity in the evaluation and presentation of test results. It is applicable only, however, when specified in another standard, i.e. a method of test or a specification.
For other details, such as apparatus, test piece preparation, conditioning, procedure, etc., requirements given in the relevant standard shall apply.
Note: In certain cases, the methods of analysis given may not be adequate, for example for peak values showing a trend with time. In cases where the minimum force values are of interest, it is possible to use the same methods of calculation as when determining from a range of peak values.
2 Terms and definitions
GB/T 12833-2006 The following standards are cited：
