GB/T 6505-2017: Translated English of Chinese Standard. (GBT 6505-2017, GB/T6505-2017, GBT6505-2017): Man-made Fiber - Test Method for Thermal Shrinkage of Filament Yarns (after treatment)
https://www.chinesestandard.net, Nov 6, 2020 - Technology & Engineering - 30 pages
This Standard specifies test methods for boiling water shrinkage and dry-hot air shrinkage of man-made filament yarns (after treatment) -- stranded filament method and single filament method. The stranded filament method provides two modes: manual measurement and instrument measurement; manual measurement shall be used when there is a dispute. This Standard is applicable to man-made fiber filament yarns with a linear density of less than 3,000 dtex.
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Appendix A informative Structural Changes of This Standard Compared with
normative Calculation Method for Increasing Test Quantity
Common terms and phrases
accordance with Formula accurate added adjusted adopts allowance Appendix D applicable arithmetic mean value average values boiling treatment boiling water shrinkage calculated in accordance carefully Causes Chapter clamp combines Compared with ISO comparison conduct confidence interval conventional moisture regain determined device ensure equilibrium expressed Fiber Filament Yarns filament-stranding rack fold frame gauze GB/T Group half-width value hang hook Hot Air increased instrument measurement Length measurement Limit load loose lower end Man-made Filament Yarns manual measurement Material mesh mesh bag modified needs Normative number of reels number of tests obtained operation placed Polyester pre-tension Precision provides ratio refers single filament method specified specified in 6.2.5 Standard stipulations stranded filament method tability Table Table F.2 Technical Differences temperature tension tension per unit test quantity test specimen Testing Method Textile thermal shrinkage rate thermal treatment unit linear density variation Version vertical measuring scale weight