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Mechanical engineering

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Leather - Determination of the boiling stability of wet blue

Standard [CURRENT] 2016-04

DIN 4870:2016-04

Leather - Determination of the boiling stability of wet blue

This standard specifies a method for the determination of the boiling stability of wet blue in the dewatered condition. The determined length shrinkage serves as quality control of the chrome tanning.

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Testing of leather; determination of the stress-strain behaviour during vaulting and bursting test

Standard [CURRENT] 1974-01

DIN 53323:1974-01

Testing of leather; determination of the stress-strain behaviour during vaulting and bursting test

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Leather - Determination of the behaviour at permanent folding of semi-flexible leathers

Standard [CURRENT] 2025-07

DIN 53340:2025-07

Leather - Determination of the behaviour at permanent folding of semi-flexible leathers

The test method described in this document is intended to evaluate the behaviour at permanent folding of leathers and their surface layers that cannot be clamped into a flexometer due to their ...

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Leather - Physical and mechanical tests - Determination of leather finishing fastness to ironing

Standard [CURRENT] 2024-03

DIN 53342:2024-03

Leather - Physical and mechanical tests - Determination of leather finishing fastness to ironing

This document specifies a test method for determining the leather finishing fastness to ironing. This document has been prepared by Working Committee NA 062-05-51 AA "Anforderungen und ...

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