BS ISO 20942:2019 pdf free download.Leather — Full chrome upper leather — Specification and test methods.
BS ISO 20942:2019 specifies requirements, methods of test and methods of sampling for full chrome upper leather. This document is applicable to upper leather which is used in general purpose sports footwear, school footwear, casual footwear, men’s town footwear, women’s town footwear, cold weather footwear, fashion footwear, infants’ footwear and indoor footwear.
Leather is widely used in the footwear industry. Although different tanning agents can be used to produce leather, chromium Ill is still the most important agent in the tanning of leather for footwear. This document specifies requirements for various types of full chrome upper leather which are used in the footwear industry.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2418. Leather — Chemical, physical and mechanical and fastness tests — Sampling location iSO 2588. Leather — Sampling — Number of items for a gross sample
ISO 3376. Leather — Physical and mechanical tests — Determination of tensile strength and percentage extension
ISO 3377-2, Leather — Physical and mechanical tests — Determination of tear load — Part 2:Double edge tear
ISO 3379. Leather — Determination of distension and strength of surface (Ball burst method) ISO 4045, Leather — Chemical tests — Determination of pH and difference figure
ISO 4048 Leather — Chemical tests — Determination of matter soluble in dichioromethane and free fatty acid conten.
3.1
casual footwear
footwear designed and manufactured as suitable for out-of-work leisure and spare time activities
[SOURCE: 150 19952: 2005. 28]
3.2
cold weather footwear
footwear designed and manufactured to give specific protection to the wearer during use in sub-zero temperatures and in ice or snow or on frozen underfoot surfaces
Note 1 to entry: Also suitable for specific cold environments.
[SOURCE: ISO 19952: 2005,38]
3.3
fashion footwear
footwear designed and manutactured br light wear in which style is prevalent
[SOURCE: ISO 19952: 2005, 591