GB/T 41793-2022 in English

《GB/T 41793-2022人造革合成革试验方法 潜在酚黄变的测定》由TC48（全国塑料制品标准化技术委员会）归口，主管部门为中国轻工业联合会。

GB/T 41793-2022 Test method of artificial leather and synthetic leather - Determination of the potential to phenolic yellowing

1 Scope

This document describes the method for determination of the potential to phenolic yellowing of artificial leathers and synthetic leathers.

This document is applicable to the determination of potential phenolic yellowing of artificial leathers and synthetic leathers.

2 Normative References

The following documents contain requirements which, through reference in this text, constitute provisions 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.
GB/T 251 Textiles - Tests for colour fastness - Grey scale for assessing staining
GB/T 29778-2013 Textiles - Tests for color fastness - Assessment of the potential to phenolic yellowing of materials
GB/T 30435 Electric gravity convection and forced ventilation ovens
QB/T 5160-2017 Test method for synthetic leather and artificial leather - Methods for measuring colours

3 Terms and Definitions

For the purposes of this document, the following terms and definitions apply.

3.1
phenolic yellowing
phenomenon of phenolic compounds becoming yellow when they are exposed to nitrogen oxides, resulting in the yellowing of artificial leathers and synthetic leathers
[Source: GB/T 29778-2013, 3.1, modified]

3.2
potential to phenolic yellowing
likelihood or ability to undergo phenolic yellowing
[Source: GB/T 29778-2023, 3.2]

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Principle
5 Sample preparation
6 Test equipment
7 Materials for testing
8 Test procedure
9 Test results
10 Test report