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See Chinese contents: GB/T 6505-2017 GB/T 6505-2017: Man-made fiber -- Test method for thermal shrinkage of filament yarns (after treatment)
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.
