This document specifies general principles on colour fastness evaluation tests for leather, as listed in Annex A. Procedures included in this document are common to most of the fastness test methods. This document provides a common basis for testing and reporting colour fastness. The uses and limitations of the methods are pointed out, several terms are defined, an outline of the drafting of the methods is given and the contents of the clauses describing the methods are discussed. Procedures common to a number of the methods are discussed briefly. Colour fastness means the resistance of the colour to the different agents to which these materials can be exposed during manufacture and their subsequent use. The change in colour of leather and staining of undyed adjacent fabrics or other materials are assessed as fastness ratings. Other visible changes in the leather under test, for example surface appearance, change in gloss or shrinkage, are considered as separate properties and reported as such. The leather fastness test methods can be used not only for assessing leather and related materials, such as coated leather and leather board, but also for the eventual assessment of the colour fastness of leather dyes. When such a method is so used, the dye is applied to a specified retanned leather or crust leather in defined depths of colour by stated procedures and the material is then tested in the usual way.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | European foreword <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | 1 \u200bScope 2 \u200bNormative references 3 \u200bTerms and definitions 4 \u200bGeneral principles <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 5 \u200bOutline of form of the methods 6 \u200bThe \u201cScope\u201d clause 7 \u200bThe \u201cNormative references\u201d clause 8 \u200bThe \u201cTerms and definitions\u201d clause 9 \u200bThe \u201cPrinciple\u201d clause 10 \u200bThe \u201cApparatus\u201d, \u201cReagents\u201d or \u201cReference materials\u201d clause(s) 10.1 \u200bGeneral 10.2 \u200bTest solutions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 10.3 \u200bAdjacent materials 10.4 \u200bCoating substances <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 10.5 \u200bStandard reference for fading 10.6 \u200bStandard reference for rubbing and soiling 10.7 \u200bSelection and use of adjacent fabrics 10.7.1 \u200bGeneral 10.7.2 \u200bTypes of adjacent fabric 10.7.3 \u200bDimensions and use of adjacent fabrics 11 \u200bThe \u201cTest specimen\u201d clause 11.1 \u200bGeneral <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 11.2 \u200bPreparation of specimens 11.3 \u200bPreparation of composite specimens 11.3.1 \u200bGeneral 11.3.2 \u200bStaples 11.3.3 \u200bComposite specimens using two single-fibre adjacent fabrics 11.3.4 \u200bComposite specimens using one multifibre adjacent fabric <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 12 \u200bConditioning 13 \u200bThe \u201cProcedure\u201d clause 14 \u200bAssessment of colour fastness 14.1 \u200bGeneral conditions <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 14.2 \u200bColour fastness with respect to change in colour 14.3 \u200bColour fastness with respect to staining <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 15 \u200bConditions of viewing and illumination in assessing colour fastness 16 \u200bTest report <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Annex A (informative) Leather fastness test methods <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Leather. Tests for colour fastness. General principles of testing<\/b><\/p>\n |