ISO 12492:2012
Rubber, raw — Determination of water content by Karl Fischer method
ISO 12492:2012 specifies a test method for the determination of water content of raw rubber and compounded rubber using a coulometric Karl Fischer titration method. It applies to the range for the water content between 0,01 % and 1 %. As this is a very sensitive method, contact of sample with any moisture, even from the surrounding environment, must be eliminated as much as possible.
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Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Calibration
7 Sampling and preparation of test piece
8 Procedure
8.1 Power on
8.2 Selection of the generator electrode
8.3 Filling the electrolysis cell
8.4 Equipment check
8.5 Analysis
9 Precision
10 Test report
Annex A (normative) Calibration schedule
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Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Calibration
7 Sampling and preparation of test piece
8 Procedure
8.1 Power on
8.2 Selection of the generator electrode
8.3 Filling the electrolysis cell
8.4 Equipment check
8.5 Analysis
9 Precision
10 Test report
Annex A (normative) Calibration schedule