Rubber, vulcanized or thermoplastic. Resistance to ozone cracking - Reference and alternative methods for determining the ozone concentration in laboratory test chambers Ingestion-build-183098 450-3 and ITU-R Recommendation BS-643-3)

450-3 and ITU-R Recommendation BS-643-3)

BS EN ISO 12402‑3:2020 supersedes ISO 12402‑3:2006

ISBN 0 580 48378 9

BS EN 1005-3 specifies recommended force limits for actions during machinery operation including construction

Annex A (informative) Preferred designs of articles for hot dip galvanizing

Rubber, vulcanized or thermoplastic. Resistance to ozone cracking - Reference and alternative methods for determining the ozone concentration in laboratory test chambers Ingestion-build-183098 450-3 and ITU-R Recommendation BS-643-3)1 Scope This document 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