ISO 22744-2:2020
Textiles and textile products — Determination of organotin compounds — Part 2: Direct method using liquid chromatography
This document specifies a test method for the qualification and quantification of organotin compounds. This test method is applicable to all types of materials of textile products.
NOTE CEN/TR 16741 defines which materials are applicable to this determination.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus and materials
7 Preparation of the test sample
8 Procedure
8.1 General
8.2 Preparation of the extraction solvent (250 mg/l of tropolone in methanol/ethanol mixture)
8.3 Preparation of standard solution
8.3.1 General
8.3.2 Internal standards — Stock solution (1 000 mg/l of organotin cation)
8.3.3 Internal standards — Working solution (2 mg/l of organotin cation)
8.3.4 Standards — Stock solution (1 000 mg/l of organotin cation)
8.3.5 Standards — Working solution (10 mg/l of organotin cation)
8.4 Sample extraction
8.5 Sample analysis
9 Expression of results
9.1 Calibration curve
9.2 Calculation
9.3 Reliability of the method
10 Test report
Annex A (informative) Example of chromatographic condition
Annex B (informative) Example of calibration preparation
Annex C (informative) Reliability of the method
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus and materials
7 Preparation of the test sample
8 Procedure
8.1 General
8.2 Preparation of the extraction solvent (250 mg/l of tropolone in methanol/ethanol mixture)
8.3 Preparation of standard solution
8.3.1 General
8.3.2 Internal standards — Stock solution (1 000 mg/l of organotin cation)
8.3.3 Internal standards — Working solution (2 mg/l of organotin cation)
8.3.4 Standards — Stock solution (1 000 mg/l of organotin cation)
8.3.5 Standards — Working solution (10 mg/l of organotin cation)
8.4 Sample extraction
8.5 Sample analysis
9 Expression of results
9.1 Calibration curve
9.2 Calculation
9.3 Reliability of the method
10 Test report
Annex A (informative) Example of chromatographic condition
Annex B (informative) Example of calibration preparation
Annex C (informative) Reliability of the method
Bibliography