This standard specifies terms and definitions, classification, requirements, testing conditions, test methods, inspection rules, marking, packaging, transport, storage and application guideline of derlin zipper.
It is applicable to derlin zipper (hereinafter referred to as "zipper") but not applicable to special zipper.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
GB/T 250-2008 Gray scale for assessing change in colour
GB/T 251-2008 Gray scale for assessing staining
GB/T 2828.1-2012 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of stability for productive process)
GB/T 3920-2008 Textiles - Tests for colour fastness - Colour fastness to rubbing
GB/T 3921-2008 Textiles - Tests for colour fastness - Colour fastness to washing with soap or soap and soda - Test
GB/T 8629-2001 Textiles - Domestic washing and drying procedures for textile testing
GB/T 8630-2002 Textiles-Determination of dimensional change in washing and drying
GB 18401 National general safety technical code for textile products
GB/T 18746 Zipper terminology
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 18746 apply.
4 Classification
4.1 The zipper is divided into finished zipper and chain zipper, where the former one may be reclassified into open-end zipper and close-end zipper. Open-end zipper is composed of one way open-end zipper and two way open-end zipper. One way open-end zipper is reclassified into common one way open-end zipper and circular one way open-end zipper; close-end zipper is composed of one way close-end zipper and two way close-end zipper, where the latter one may be divided into two way C/E zipper with head-to-head sliders and two way C/E zipper with bottom-to-bottom sliders. Chain zipper refers to long chain zipper. See Figure 1.
