ISO 17228:2015 pdf download

ISO 17228:2015 pdf download

ISO 17228:2015 pdf download.Leather — Tests for colour fastness — Change in colour with accelerated ageing
1 Scope
This International Standard specifies various ageing procedures to obtain an indication of the changes that could occur when leather is exposed to a certain environment for a prolonged time. Over time, the surface colour of leather and the leather itself change due to ageing and to the action of the surroundings on the leather. The test conditions to be used depend on the type of leather and its intended use. This procedure can also be used to age specimens for the test of dimensional change according to ISO 17130.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 105-A01, Textiles — Tests for colour fastness — Part A01: General principles of testing
ISO 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour
ISO 105-A03, Textiles — Tests for colour fastness — Part A03: Grey scale for assessing staining
ISO 105-A04, Textiles — Tests for colour fastness — Part A04: Method for the instrumental assessment of the degree of staining of adjacent fabrics
ISO 105-A05, Textiles — Tests for colour fastness — Part A05: Instrumental assessment of change in colour for determination of grey scale rating
ISO 2418, Leather — Chemical, physical and mechanical and fastness tests — Sampling location
ISO 2419, Leather — Physical and mechanical tests — Sample preparation and conditioning
ISO 17130, Leather — Physical and mechanical tests — Determination of dimensional change
3 Principle
A test specimen of leather is exposed to at least one of the three following conditions:
— heat (see Clause 6);
— heat and humidity (see Clause 7);
— cycles of different temperature and humidity (see Clause 8).
One or more of these procedures may take place simultaneously. The change in colour of the specimen
is assessed with the standard grey scale and, if applicable, any changes in the finish or appearance are noted.
These procedures can also be used to prepare the leather specimen for other physical or fastness tests after accelerated ageing. The assessment of dimension change is described in ISO 17130.
NOTE Accelerated ageing tests are for guidance only and they are not necessarily representative of long term use at ambient temperatures.