NATIONAL FOREWORD

The Indian Standard which is identical with ISO 9370 : 2017 ‘Plastics — Instrumental determination of radiant exposure in weathering tests — General guidance and basic test method’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Methods of Sampling and Test for Plastics Sectional Committee and approval of the Petroleum, Coal and Related Products Division Council.