Standard No.:	GB 1523-2026
English Name:	Wool
Chinese Name:	绵羊毛
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR, SAC
Issued on:	2026-7-30
Implemented on:	2027-8-1
Status:	to be valid
Superseding:	GB 1523-2013 Sheep wool GB 1523-2013/XG1-2019 Sheep wool，including Amendment 1
Target Language:	English
File Format:	PDF
Word Count:	15000 words
Translation Price(USD):	450.0
Delivery:	via email in 1~3 business day

GB 1523-2026 Wool English, Anglais, Englisch, Inglés, えいご ICS 59.060.10 CCS W 21 National Standard of the People's Republic of China GB 1523-2026 Replaces GB 1523-2013 Wool 绵羊毛 (English Translation) Issue date: 2026-07-30 Implementation date: 2027-08-01 Issued by the State Administration for Market Regulation of the People's Republic of China the Standardization Administration of the People's Republic of China Wool 1 Scope This document specifies the model specifications (or grades), technical requirements, inspection requirements, inspection certificate, packaging, marking, storage, transport and re‑inspection requirements for wool, and describes the sampling methods and inspection methods for wool. This document applies to the production, trading, processing, quality supervision and import inspection and appraisal of wool. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 6500 Test method for moisture regain of hair fibers - Oven method GB/T 6529 Textiles - Standard atmospheres for conditioning and testing GB/T 6976 Test method for measure length of the wool staple natural formation GB/T 6977 Test method for ethanol extractives, ash, vegetable matter, total ali-insoluble impurities in scoured wool GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 10685 Wool - Determination of fiber diameter - Projection microscope method GB/T 14270 Test method for fiber type content of hair fibers GB/T 14271 Test method for the yield of greasy wool and raw cashmere - Oil pressure method GB 18267 Cashmere GB/T 21030 Test method for the mean and distribution of fibre diameter of wool and other animal fibre - Optical fibre diameter analyser (OFDA) GB/T 27629 Determination of breaking tenacity of animal fibre bundles GB/T 35935 Measurement of the mean and distribution of animal fibre diameter - Laserscan fibre diameter analysis method GB/T 41558 Determination of staple length and strength GB/T 43170 Regulations for sampling and testing of wool 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 Wool fibre obtained from sheep (Ovis aries) Note: Depending on the degree of homogeneity, wool can be classified into homogeneous wool (3.2), partially homogeneous wool (3.5) and heterogeneous wool (3.3). [Source: GB/T 11951-2018, 3.1.3.1] 3.2 homogeneous wool wool (3.1) composed of the same type of wool fibre Note: According to the average diameter range, homogeneous wool is classified into three types: superfine wool (3.8), fine wool (3.9) and medium fine wool (3.10). 3.3 heterogeneous wool wool (3.1) composed of different types of wool fibre Note: Different types of wool fibre include non-medullated wool, medullated wool and heterotypical wool. For relevant definitions, see GB/T 14270. 3.4 fleece wool (3.1) obtained from a live sheep, in which the staples are interconnected and form a tight network 3.5 partial homogeneous wool wool (3.1) in which most of the staples on a fleece (3.4) are in the form of homogeneous wool, while a small proportion are in the form of heterogeneous wool 3.6 skirting wool wool fibre taken from the periphery of a fleece (3.4) that is significantly different from the main body wool 3.7 head leg and tail wool wool fibre cut from the head, legs and tail of a sheep 3.8 superfine wool homogeneous wool (3.2) with an mean fibre diameter of 19.0 μm or less 3.9 fine wool homogeneous wool (3.2) with an mean fibre diameter of 19.1 μm~25.0 μm 3.10 medium fine wool homogeneous wool (3.2) with an mean fibre diameter of 25.1 μm~55.0 μm 3.11 native wool wool fibre obtained from sheep that are unimproved and possess the characteristics of the original breed 3.12 native fine wool native wool (3.11) with a fibre diameter of 30 μm or less 3.13 improved wool wool fibre obtained from crossbred sheep in the process of improvement that has not yet reached homogeneity 3.14 coarse⁃cavity hair wool fibre with a fibre diameter of 52.5 μm or more, or with a medullary cavity length of 25 mm or more in a 500× microscopic magnified projection image Note: Coarse hair refers to wool fibre with a fibre diameter of 52.5 μm or more. Cavity hair refers to wool fibre with a medullary cavity length of 25 mm or more in a 500× microscopic magnified projection image. 3.15 kemp hair wool fibre with an oblate or horseshoe‑shaped cross‑section, well‑developed medulla, very thin or absent cortex, dry and dull appearance, dull white colour, brittle and easily broken, and difficult to dye 3.16 faulty wool; defective wool wool that has defects Note: This includes stamped wool (3.17), canary stained wool (3.18), dung‑stained wool (3.19), burry wool (3.20), heavy cotted wool(3.21), coloured wool (3.22), dermatitis and acariasis wool (3.23) and tender wool (3.24) 3.17 stamped wool stained wool of sheep with markings Note: Such as dyed wool, pitch‑stained wool, paint‑stained wool, waste oil‑stained wool, and other coloured contaminated wool. 3.18 canary stained wool wool that has become yellow due to contamination, with the contaminated portion exceeding 50 % of the staple length 3.19 dung stained wool; dag wool wool that is severely contaminated with dung 3.20 burry wool wool containing dense areas of vegetable burrs 3.21 heavy cotted wool wool in which the fibres have formed into felted masses, do not separate into individual fibres when pulled apart, and whose fibre strength has seriously decreased 3.22 coloured wool wool fibre containing wool of different colours 3.23 dermatitis and acariasis wool wool obtained from sheep suffering from mange, bearing scabs or skin flakes 3.24 tender wool wool in which part of the fibre diameter is markedly reduced and the strength is less than 25 N/ktex, due to factors such as malnutrition or disease during the growth of the sheep 3.25 lot sample wool sample drawn from a bulk loose lot or a trading consignmen Note: Depending on the purpose of inspection, lot samples are classified into quality inspection lot samples and conditioned weight inspection lot samples.

Contents Foreword Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Technical requirements 5 Sampling 6 Inspection methods 7 Inspection requirements 8 Inspection certificate 9 Packaging, marking, storage and transport Annex A (Normative) Correspondence between mean fibre diameter and quality number of wool Annex B (Normative) Inspection method for the content of native fine wool (mass percentage) Bibliography