QB/T 4338-2012 in English

1 Scope

This standard specifies the test methods for alkylphenol ethoxylates (octylphenol polyoxyethylene ether OPnEO and nonylphenol ethoxylates NPnEO) in footwear products and components.

This standard is applicable to all footwear products and components.

Table 1 in GB/T 29292-2012 specifies the material containing these substances in footwear products and components.

2 Normative References

The following documents are indispensable for the application of this standard. For dated reference, only the dated editions are applicable to this document. For undated reference, the latest edition (including all the amendments) applies.

GB/T 6682-2008 Water for Analytical Laboratory Use - Specification and Test Methods
GB/T 22049 Footwear - Standard Atmospheres for Conditioning and Testing of Footwear and Components for Footwear
GB/T 29292-2012 Footwear - Critical Substances Potentially Present in Footwear and Footwear Components

3 Principles

Use methanol to conduct ultrasonic extraction of alkylphenol ethoxylates in the sample, use hydroiodic acid to position and pyrolyze, purify by solution-solution extraction technique and then dehydrate and conduct qualitative and quantitative analysis with gas chromatography/mass spectrometry (GC-MS) and liquid chromatography respectively.

Foreword i
1 Scope
2 Normative References
3 Principles
4 Reagents
5 Instruments and Equipment
6 Sample Preparation and Conditioning
7 Test Procedures
8 Test Report
Annex A (Informative) Spectrogram of Alkylphenol Ethoxylate after Pyrolysis
Annex B (Informative) Liquid Chromatogram of Alkylphenol Ethoxylates