Reaffirmed 2024

NATIONAL FOREWORD

This Indian Standard (Part 4) (First Revision), which is identical with ISO 8573-4 : 2019 ‘Compressed air - Contaminant measurement - Part 4: Particle content’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Industrial Gases Sectional Committee and approval of the Chemical Division Council.