Standard Test Method for Tensile Strength and Elongation of Leather

Importancia y uso:

5.1 The tensile strength test gives a reliable indication of the quality of the leather. Improperly lubricated and partially degraded leathers give low values for tensile strength. The orientation of the specimen in relation to the backbone and the location of the specimen on the hide influence the results significantly. This test method is excellent for development, control, specification acceptance, and service evaluation of leather. This test method may not apply when the conditions of test employed differ widely from those specified in the test method.

5.2 The elongation measurement may be made at any designated load and is expressed as a percentage of the original distance between the jaws or between benchmarks of the unstretched specimen. The speed of the machine is important. Speeds under or more than 10 in./min ± 2 in./min (4.2 mm/s ± 0.8 mm/s) will give variables in the results, thus affecting the reproducibility of the method. The direction relative to the backbone and the width of the test specimen determines the magnitude of the elongation. This test method is excellent for development, control, specification acceptance, and service evaluation of leather. This test method may not apply when the conditions of the test employed differ widely from those specified in the test method.

Subcomité:

D31.07

Referida por:

D2211-00R21, D2208-16R23, D2207-00R25, D8137-18R23, D4704-13R23, D4705-18R23, D4786-00R24, D2212-00R25

Volúmen:

15.04

Número ICS:

59.140.30 (Leather and furs)

Palabras clave:

elongation; leather; strength; stretch; tensile strength ;