Standard No.:	GB/T 41553-2022
English Name:	Bamboo fiber
Chinese Name:	竹纤维
Professional Classification:	GB    National Standard
ICS Classification:	59.060.10 59.060.10    Natural fibres 59.060.10
Source Content Issued by:	SAMR; SAC
Issued on:	2022-4-15
Implemented on:	2022-11-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	6000 words
Translation Price(USD):	180.0
Delivery:	via email in 1 business day

GB/T 41553-2022 Bamboo fiber 1 Scope This document provides the classification and codes of bamboo fibers, specifies their technical requirements, and describes the corresponding test methods, inspection rules, as well as packaging, marking, transportation, and storage. This document is applicable to natural fibers processed from bamboo as the raw material. 2 Normative references The following documents contain provisions 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 2677.8 Fibrous raw material - Determination of acid-insoluble lignin GB/T 2677.10 Fibrous raw material - Determination of holocellulose GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection GB/T 3291.1 Textiles -Terms of textiles material properties and test - Part 1: Fibre and yarn GB/T 5707 Textiles - Bast fibres textile products - Terminology GB/T 5889 Method of quantitative analysis of ramle chemical components GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 9994 Conventional moisture regains of textile materials GB/T 9995 Determination of moisture content and moisture regain of textile - Oven-drying method GB/T 10685 Wool - Determination of fiber diameter - Projection microscope method GB/T 17644 Test method for whiteness and chromaticity of textile fibres GB/T 18147.2 Test method for hemp fibre - Part 2: Test method for residual gum content of hemp fibre GB/T 18147.3 Test method for hemp fiber - Part 3: Test method for length of hemp fiber GB/T 18147.4 Test method for hemp fiber - Part 4: Test method for fineness of hemp fiber GB/T 35378-2017 Testing methods for tensile mechanical properties of plant short individual fibers GB/T 36394 Terminology of bamboo products NY/T 2635 Test method for breaking tenacity of ramie fiber 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 3291.1, GB/T 5707, GB/T 36394 and GB/T 9994 as well as the following apply. 3.1 bamboo fiber bundle-form, filamentous, or fluffy units derived from bamboo through chemical or mechanical processing, comprising individual fiber cells and aggregates of multiple fiber cells 3.2 bamboo fibers for textiles bundle-form bamboo fibers, which are separated from bamboo with a typical length exceeding 30mm and are suitable for textile processing while retaining the natural characteristics of bamboo 3.3 bamboo fibers for non-textiles bundle-form bamboo fibers separated from bamboo, which are unsuitable for textile processing but retain the natural characteristics of bamboo Note: Primarily used for composite materials. 3.4 moisture regain amount of water present in a material, as determined under specified conditions Note: Expressed as the percentage of the difference between the mass of the specimen before drying and the mass after drying, relative to the mass after drying. 3.5 conventional moisture regain agreed-upon or specified value representing the moisture regain of a material 3.6 residual gum content percentage ratio of the dry weight of residual gum substances remaining in the fibers to the dry weight of the fibers themselves 3.7 breaking force force applied to stretch a fiber until it breaks under specified conditions 3.8 breaking strength ratio of the breaking force of a fiber to its linear density 3.9 sticky fiber bamboo fibers that are notably coarse and stiff, with a linear density exceeding that of regular bamboo fibers by more than 100% 3.10 nep granular defects formed by the twisting and knotting of short, fine bamboo fibers

Foreword I 1 Scope 2 Normative references 3 Terms and definitions 4 Classification and code 5 Requirements 6 Test methods 7 Inspection rules 8 Packaging, marking, transportation, and storage