T/MYXZX 002-2018 Crudely knitted rabbit fur yarn
T/MYXZX 002-2018 Crudely knitted rabbit fur yarn
Basic Information
Scope
Scope: This standard specifies the technical requirements, test methods, acceptance rules, packaging, and marking for coarse-combed knitted rabbit fur yarn. This standard applies to the identification of the quality of coarse-combed pure rabbit fur yarn. Main technical contents: Technical requirements include: safety requirements, grading specifications, and evaluation of internal and external quality. Safety requirements: The safety requirements for coarse-combed knitted rabbit fur yarn shall comply with the provisions of GB 18401. Grading specifications: The grade of coarse-combed knitted rabbit fur yarn shall be evaluated on a batch basis, based on the results of inspections of internal and external quality. The lowest grade of the two shall be used to determine the overall grade, which is divided into excellent, first-class, and second-class grades. Those below the second-class grade are classified as substandard. Evaluation of internal quality: The evaluation of internal quality shall be conducted on a batch basis, based on physical indicators and dye fastness, with the lowest grade determining the overall grade. Evaluation of dye fastness: The dye fastness shall be evaluated in accordance with Table 2 and GB 250, GB 251. First-class products are allowed to have one item lower by half a grade; those with two items lower by half a grade or one item lower by one grade shall be downgraded to second-class products; and those below the second-class grade shall be classified as substandard. Evaluation of appearance quality: The evaluation of appearance quality is divided into evaluation of appearance defects of hank yarn and evaluation of appearance defects of woven fabric. The description and measurement methods of appearance defects are provided in Appendix B. Evaluation of appearance defects of hank yarn: The evaluation of appearance defects of hank yarn shall be conducted on a hank basis, with each hank inspected individually. No defects such as poo