JIS B 9920:2002
Classification of air cleanliness for cleanrooms

Standard No.

JIS B 9920:2002

Release Date

2002

Published By

Japanese Industrial Standards Committee (JISC)

Status

Withdraw

Replace By

JIS B 9920-1:2019

JIS B 9920-2:2019

Latest

JIS B 9920-1:2019

JIS B 9920-2:2019

Replace

JIS B 9920:1989

Scope

This standard specifies the classification of air cleanliness in clean rooms and related controlled environments (hereinafter referred to as clean room facilities) based on suspended particulate concentration, and the evaluation method thereof.

JIS B 9920:2002 history

• 2019 JIS B 9920-1:2019 Cleanrooms and associated controlled environments -- Part 1: Classification of air cleanliness by particle concentration
• 2002 JIS B 9920:2002 Classification of air cleanliness for cleanrooms
• 1989 JIS B 9920:1989 Measuring methods for airborne particles in clean room and evaluating methods for air cleanliness of clean room