This standard specifies the technical requirements, test methods, packaging markings, and inspection rules for elastic wool fabrics. This standard is applicable to the identification of the quality of various types of woven and worn elastic pure wool, wool blended or interwoven fabrics (with wool and other animal fiber content of 30% or more). This standard is drafted in accordance with the rules given in GB/T1.1-2009. This standard replaces FZ/T24006-2006 "Elastic Wool Fabrics". Compared with FZ/T24006-2006, except for editorial modifications, the main technical changes are as follows: - The scope of application has been increased, and it is stipulated that the content of wool and other animal fibers in wool blended or blended fabrics should be at least 30%—— Change the "second class product" in the grade to "qualified product"—— Added assessment indicators for semi worsted elastic wool fabrics—— Corrected the positive and negative signs of the width deviation assessment indicators—— Revised the weight tolerance assessment index for square meters—— Corrected the positive and negative signs of the static size change rate assessment indicators—— Revised the provisions on fiber content tolerance—— Revised pilling assessment indicators—— Revised the assessment indicators for steam size change rate of combed elastic wool fabric and coarse combed elastic wool fabric—— Revised the assessment indicators for water fall deformation—— Revised tear strength assessment indicators—— Revised the assessment indicators for seam detachment degree—— Revised the assessment indicators for elastic elongation of qualified products—— Increase the assessment of the oil content of rough combed elastic woolen fabrics. This standard is proposed by the China Textile Industry Federation. This standard is under the jurisdiction of the Wool Textile Sub technical Committee of the National Textile Standardization Technical Committee (SAC/TC209/SC3). This standard was drafted by Shanghai Wool and Hemp Textile Science and Technology Research Institute, Hengyuanxiang (Group) Co., Ltd., and Jiaxing Product Quality Inspection and Testing Institute. The main drafters of this standard are Zhu Yicheng, He Aifang, and Wei Xiaoying. The previous versions of the standards replaced by this standard have been released as follows: - FZ/T24006-2006. The following referenced documents are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T2910 (all parts) Quantitative Chemical Analysis of Textiles GB/T3923.1 Textiles - Tensile Properties of Fabrics - Part 1: Determination of Breaking Strength and Elongation at Break - Strip Method GB/T16988 Determination of Content of Special Animal Fibers and Sheep Wool Mixtures GB/T22863 Semi worsted Wool Fabrics GB/T26378 Combed Wool Fabrics GB/T26382 Combed Wool Fabrics GB/T29862 Textiles - Identification of Fiber Content FZ/T01026 Textiles - Quantitative Chemical Analysis of Four Component Fiber Mixtures FZ/T01095 Textiles - Ammonia Test Method for Fiber Content of Polyester Products FZ/T70005 Test Method for Elongation and Recovery of Woolen Fabrics

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