ISO 1431-3:2017
Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 3: Reference and alternative methods for determining the ozone concentration in laboratory test chambers
ISO 1431-3:2017 describes three types of method for the determination of ozone concentration in laboratory test chambers.
Method A ? UV absorption: this is the reference method, and is used as the means of calibration for the alternative methods B and C.
Method B ? Instrumental techniques:
B1: electrochemical
B2: chemiluminescence
Method C ? Wet-chemical techniques:
Procedure I
Procedure II
Procedure III
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Calibration
7 Procedure
8 Expression of results
9 Test report
Annex A (informative) Effect of ambient atmospheric pressure on ozone cracking of rubber
Annex B (normative) Alternative instrumental methods
Annex C (normative) Wet-chemical methods
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Calibration
7 Procedure
8 Expression of results
9 Test report
Annex A (informative) Effect of ambient atmospheric pressure on ozone cracking of rubber
Annex B (normative) Alternative instrumental methods
Annex C (normative) Wet-chemical methods
Bibliography