GB/T 41418-2022 Textiles—Quantitative chemical analysis—Mixtures of meta-aramid and para-aramid fibres（method using dimethylacetamide and lithium chloride） (English Version)
Textiles - Quantitative chemical analysis - Mixtures of meta-aramid and para-aramid fibres (method using dimethylacetamide and lithium chloride)
1 Scope
This document specifies a method using dimethylacetamide and lithium chloride to determine the fibre percentage of binary mixtures of meta-aramid and para-aramid fibres, after removal of non-fibrous matter.
This document is applicable to the binary mixtures of meta-aramid and para-aramid fibres.
Note: See Annex A for the method for identifying fibres in the mixtures of meta-aramid and para-aramid fibres.
2 Normative references
The following document contains 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 2910.1 Textiles - Quantitative chemical analysis - Part 1: General principles of testing
3 Terms and definitions
No terms and definitions apply for the purposes of this document.
4 Principle
The meta-aramid fibre is dissolved out from a known dry mass of the mixture with dimethylacetamide and lithium chloride solution. The residue is collected, washed, dried and weighed; its mass, corrected if necessary, is used for calculating the percentage of the dry mass of the mixture. The percentage of meta-aramid fibre is obtained by difference.
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagent 6 Apparatus 7 Test procedure 8 Calculation and expression of results 9 Precision 10 Test report Annex A (Informative) Method for identifying meta-aramid and para-aramid fibres Bibliography
GB/T 41418-2022 Textiles—Quantitative chemical analysis—Mixtures of meta-aramid and para-aramid fibres（method using dimethylacetamide and lithium chloride） (English Version)
Standard No.
GB/T 41418-2022
Status
valid
Language
English
File Format
PDF
Word Count
5500 words
Price(USD)
165.0
Implemented on
2022-11-1
Delivery
via email in 1 business day
Detail of GB/T 41418-2022
Standard No.
GB/T 41418-2022
English Name
Textiles—Quantitative chemical analysis—Mixtures of meta-aramid and para-aramid fibres（method using dimethylacetamide and lithium chloride）
Textiles - Quantitative chemical analysis - Mixtures of meta-aramid and para-aramid fibres (method using dimethylacetamide and lithium chloride)
1 Scope
This document specifies a method using dimethylacetamide and lithium chloride to determine the fibre percentage of binary mixtures of meta-aramid and para-aramid fibres, after removal of non-fibrous matter.
This document is applicable to the binary mixtures of meta-aramid and para-aramid fibres.
Note: See Annex A for the method for identifying fibres in the mixtures of meta-aramid and para-aramid fibres.
2 Normative references
The following document contains 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 2910.1 Textiles - Quantitative chemical analysis - Part 1: General principles of testing
3 Terms and definitions
No terms and definitions apply for the purposes of this document.
4 Principle
The meta-aramid fibre is dissolved out from a known dry mass of the mixture with dimethylacetamide and lithium chloride solution. The residue is collected, washed, dried and weighed; its mass, corrected if necessary, is used for calculating the percentage of the dry mass of the mixture. The percentage of meta-aramid fibre is obtained by difference.
Contents of GB/T 41418-2022
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagent
6 Apparatus
7 Test procedure
8 Calculation and expression of results
9 Precision
10 Test report
Annex A (Informative) Method for identifying meta-aramid and para-aramid fibres
Bibliography
