Textiles - Tests for colour fastness - Assessment of the potential to phenolic yellowing of materials
1 Scope
This standard specifies a method intended for assessment of the potential to phenolic yellowing of textile materials.
This standard is specific to phenolic yellowing and does not cover other possible causes of yellow discolouration found on textile materials.
Note: Use of the method does not guarantee that the materials tested will not exhibit yellowing in some form. It is intended as a screening test which, in practice, has been found to significantly reduce the number of complaints of phenolic yellowing by enabling corrective action to be taken with materials which, after testing, exhibit yellowing.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 251 Textiles - Tests for colour fastness - Grey scale for assessing staining (GB/T 251-2008, ISO 105-A03:1993, IDT)
GB/T 6151 Textiles - Tests for colour fastness - General principle of testing (GB/T 6151-1997, eqv ISO 105-A01:1994)
FZ/T 01023 Method for the instrumental assessment of staining of adjacent fabrics (FZ/T 01023-1993, neq ISO 105-A04:1989)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
phenolic yellowing
discolouration of textile materials caused by the action of oxides of nitrogen and phenolic compounds, which lead to the production of a yellow colour
3.2
potential to phenolic yellowing
possibility or capability of phenolic yellowing
4 Principle
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Specimens
6 Apparatus
7 Materials
8 Procedure
9 Assessment
10 Test report
Textiles - Tests for colour fastness - Assessment of the potential to phenolic yellowing of materials
1 Scope
This standard specifies a method intended for assessment of the potential to phenolic yellowing of textile materials.
This standard is specific to phenolic yellowing and does not cover other possible causes of yellow discolouration found on textile materials.
Note: Use of the method does not guarantee that the materials tested will not exhibit yellowing in some form. It is intended as a screening test which, in practice, has been found to significantly reduce the number of complaints of phenolic yellowing by enabling corrective action to be taken with materials which, after testing, exhibit yellowing.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 251 Textiles - Tests for colour fastness - Grey scale for assessing staining (GB/T 251-2008, ISO 105-A03:1993, IDT)
GB/T 6151 Textiles - Tests for colour fastness - General principle of testing (GB/T 6151-1997, eqv ISO 105-A01:1994)
FZ/T 01023 Method for the instrumental assessment of staining of adjacent fabrics (FZ/T 01023-1993, neq ISO 105-A04:1989)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
phenolic yellowing
discolouration of textile materials caused by the action of oxides of nitrogen and phenolic compounds, which lead to the production of a yellow colour
3.2
potential to phenolic yellowing
possibility or capability of phenolic yellowing
4 Principle
Contents of GB/T 29778-2013
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Specimens
6 Apparatus
7 Materials
8 Procedure
9 Assessment
10 Test report
