ISO 21915-3:2020
Textiles — Qualitative and quantitative analysis of some cellulose fibres (lyocell, cupro) and their blends — Part 3: Blend quantification using spectral analysis method
This document specifies quantitative testing methods of fibres that consist of cupro and lyocell by using infrared spectroscopy (IR) analysis and multivariate analysis.
This testing method is applied only for cupro or lyocell or a mix of both. The other fibres, such as cotton, viscose, etc. are identified using the test method of ISO/TR 11827 and removed using the relevant part of the ISO 1833 series.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus and material
6 Procedure
6.1 Development of a calibration model
6.1.1 Preparation of specimens
6.1.2 Measurement of IR on the calibration specimens
6.1.3 Development of the calibration model
6.1.4 Optimization of the calibration model
6.2 Measurement of test sample
6.2.1 Preparation of specimen
6.2.2 Calculation
7 Test report
Annex A (informative) Optimization of calibration model
Annex B (informative) Interlaboratory test result
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus and material
6 Procedure
6.1 Development of a calibration model
6.1.1 Preparation of specimens
6.1.2 Measurement of IR on the calibration specimens
6.1.3 Development of the calibration model
6.1.4 Optimization of the calibration model
6.2 Measurement of test sample
6.2.1 Preparation of specimen
6.2.2 Calculation
7 Test report
Annex A (informative) Optimization of calibration model
Annex B (informative) Interlaboratory test result
Bibliography