Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 7) (Third revision) which is identical with ISO 1420 : 2016 ‘Rubber- or plastics-coated fabrics — Determination of resistance to penetration by water’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation(s) of the Methods of Test for Rubber and Rubber Products Sectional Committee and approval of the Petroleum, Coal and Related Products Division Council.

The resistance to penetration by water is often used as a measure of the water-proofing of rubber- or plastics-coated fabrics when a product made from the coated fabric is exposed to various service conditions in the field. There are some environmental factors that affect the resistance to water penetration such as temperature, pressure or chemicals in water, however, the methods in this International Standard only measure the property at a low to high hydrostatic pressure level at ambient temperature.

This standard was first published in 1973 and subsequently revised in 1986. Second revision was carried out to align it with latest published ISO 1420 : 2001.