Revised Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 1) (First Revision) which is identical with ISO 16900-1 : 2019 ‘Respiratory protective devices - Methods of test and test equipment - Part 1: Determination of inward leakage’ issued by the International Organization for Standardization (ISO), was adopted by the Bureau of Indian Standards on the recommendation of the Occupational Safety and Health Sectional Committee and approval of the Chemical Division Council.

This Standard specifies the test methods for determining inward leakage of respiratory interfaces (RI) and total inward leakage of complete respiratory protective devices (RPD) using specified test agents and incorporating specified body movements, at specified metabolic work rates.