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BS EN ISO 23168:2020

BS EN ISO 23168:2020

$102.76

Paints and varnishes. Determination of water content. Gas-chromatographic method

Published By Publication Date Number of Pages
BSI 2020 18
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This document specifies a method for the determination of the water content of water-borne coating materials and their raw materials by using a gas chromatograph. The preferred working range of this test method is from a water mass fraction of 15 % to a water mass fraction of 90 % but the method can be applied outside of this range.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
8 5 Apparatus
5.1 Gas chromatograph
5.2 Sample injection system
5.3 Oven
5.4 Detector
5.5 Capillary column
5.6 Injection syringe
5.7 Data processing
5.8 Sample vials
5.9 Gas filter
9 5.10 Carrier gas
5.11 Analytical balance
5.12 Bottle-top dispenser
6 Reagents and materials
6.1 Internal standard (anhydrous)
6.2 Dilution solvent
6.3 Water
6.4 Molecular sieve
7 Sampling
10 8 Procedure
8.1 Gas-chromatographic conditions
8.2 Water content of the dilution solvent
8.3 Calibration
8.4 Sample preparation
11 8.5 Quantitative determination of water content
12 9 Expression of results
10 Precision
10.1 General
10.2 Repeatability limit, r
10.3 Reproducibility limit, R
13 11 Test report
14 Annex A (informative) Example of gas-chromatographic conditions
15 Annex B (informative) Information about precision
17 Bibliography

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BS EN ISO 23168:2020
$102.76