GB/T 19942-2005 Leather and fur-Chemical tests-Determination of banned azo colourants (Text of Document is in English) - Beijing translation compay

1 Scope
2 Normative References
3 Terms and Definitions
4 Principle
5 Special Equipment and Supplies
6 Chemicals
7 Sampling and Preparation of Samples
7.1 Sampling
7.2 Preparation of sample
8 Test Methods
8.1 Degreasing
8.2 Reductive cleavage
8.3 Liquid liquid extraction
8.4 Check of the analytical system
9 Calibration
10 Chromatographic Analyses
11 Evaluation
12 Test Report
Annex A (Informative) Precision of the Method