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Position: Chinese Standard in English/GB/T 2910.21-2009
GB/T 2910.21-2009   Textiles—Quantitative chemical analysis—Part 21:Mixtures of chlorofibers,certain modacrylics,certain elastanes,acetates,triacetates and certain other fibers (method using cyclohexanone) (English Version)
Standard No.: GB/T 2910.21-2009 Status:valid remind me the status change

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Standard No.: GB/T 2910.21-2009
English Name: Textiles—Quantitative chemical analysis—Part 21:Mixtures of chlorofibers,certain modacrylics,certain elastanes,acetates,triacetates and certain other fibers (method using cyclohexanone)
Chinese Name: 纺织品 定量化学分析 第21部分:含氯纤维、某些改性聚丙烯腈纤维、某些弹性纤维、醋酯纤维、三醋酯纤维与某些其他纤维的混合物(环己酮法)
Chinese Classification: W04    Basic standards and general methods
Professional Classification: GB    National Standard
ICS Classification: 59.080.01 59.080.01     Textiles in general 59.080.01
Source Content Issued by: AQSIQ
Issued on: 2009-06-15
Implemented on: 2010-1-1
Status: valid
Target Language: English
File Format: PDF
Word Count: 2000 words
Translation Price(USD): 40.0
Delivery: via email in 1 business day
1 Scope This part of GB/T 2910 specifies a method, using cyclohexanone, to determine the percentage of chlorobibre, madacrylic, elastane, acetate and triacetate after removal of non-fibrous matter, in textiles made of the following mixtures of - acetate, triacetate, chlorofibre, certain modacrylics, certain elastanes and - wool, animal hair, silk, cotton, cupro, modal, viscose, polyamide, acrylic and glass fibre. Where modacrylics or elastanes are present, a preliminary test should be carried out to determine whether the fibre is completely soluble in the reagent. It is also possible to analyse mixtures containing chlorofibres by using the test methods described in GB/T 2910.13 or GB/T 2910.17. 2 Normative References The following normative documents contain provisions which, through reference in this Part of GB/T 2910, constitute provisions of this Part. For dated reference, subsequent amendments (excluding corrigendum content) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this Part are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document referred to applies.
Contents Foreword I 1 Scope 2 Normative References 3 Principle 4 Reagents 5 Apparatus 6 Test Procedure 7 Calculation and Expression of Results 8 Precision Appendix A (Informative) Hot Extraction Apparatus Appendix NA (Informative) The Test Procedure of Using of Soxhlet Extractor Bibliography
Referred in GB/T 2910.21-2009:
* GB/T 2910.1-2009 Textiles - Quantitative chemical analysis - Part 1: General principles of testing
GB/T 2910.21-2009 is referred in:
*GB/T 17591-2025 Flame retardant fabrics
Code of China
Standard
GB/T 2910.21-2009  Textiles—Quantitative chemical analysis—Part 21:Mixtures of chlorofibers,certain modacrylics,certain elastanes,acetates,triacetates and certain other fibers (method using cyclohexanone) (English Version)
Standard No.GB/T 2910.21-2009
Statusvalid
LanguageEnglish
File FormatPDF
Word Count2000 words
Price(USD)40.0
Implemented on2010-1-1
Deliveryvia email in 1 business day
Detail of GB/T 2910.21-2009
Standard No.
GB/T 2910.21-2009
English Name
Textiles—Quantitative chemical analysis—Part 21:Mixtures of chlorofibers,certain modacrylics,certain elastanes,acetates,triacetates and certain other fibers (method using cyclohexanone)
Chinese Name
纺织品 定量化学分析 第21部分:含氯纤维、某些改性聚丙烯腈纤维、某些弹性纤维、醋酯纤维、三醋酯纤维与某些其他纤维的混合物(环己酮法)
Chinese Classification
W04
Professional Classification
GB
ICS Classification
Issued by
AQSIQ
Issued on
2009-06-15
Implemented on
2010-1-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
2000 words
Price(USD)
40.0
Keywords
GB/T 2910.21-2009, GB 2910.21-2009, GBT 2910.21-2009, GB/T2910.21-2009, GB/T 2910.21, GB/T2910.21, GB2910.21-2009, GB 2910.21, GB2910.21, GBT2910.21-2009, GBT 2910.21, GBT2910.21
Introduction of GB/T 2910.21-2009
1 Scope This part of GB/T 2910 specifies a method, using cyclohexanone, to determine the percentage of chlorobibre, madacrylic, elastane, acetate and triacetate after removal of non-fibrous matter, in textiles made of the following mixtures of - acetate, triacetate, chlorofibre, certain modacrylics, certain elastanes and - wool, animal hair, silk, cotton, cupro, modal, viscose, polyamide, acrylic and glass fibre. Where modacrylics or elastanes are present, a preliminary test should be carried out to determine whether the fibre is completely soluble in the reagent. It is also possible to analyse mixtures containing chlorofibres by using the test methods described in GB/T 2910.13 or GB/T 2910.17. 2 Normative References The following normative documents contain provisions which, through reference in this Part of GB/T 2910, constitute provisions of this Part. For dated reference, subsequent amendments (excluding corrigendum content) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this Part are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition of the normative document referred to applies.
Contents of GB/T 2910.21-2009
Contents Foreword I 1 Scope 2 Normative References 3 Principle 4 Reagents 5 Apparatus 6 Test Procedure 7 Calculation and Expression of Results 8 Precision Appendix A (Informative) Hot Extraction Apparatus Appendix NA (Informative) The Test Procedure of Using of Soxhlet Extractor Bibliography
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