GB/T 25915.8-2021
Cleanrooms and associated controlled environments—Part 8: Classification of air cleanliness by chemical concentration (ACC) (English Version)

Standard No.

GB/T 25915.8-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 25915.8-2021

Replace

GB/T 25915.8-2010

Scope

This document classifies air chemical pollution based on the concentration of specific chemical substances (species, groups or classes) in the air of clean rooms and related controlled environments. At the same time, the technical requirements for classification in this document provide procedures including detection methods, analysis methods and time weighting coefficients. This document currently only considers the concentration of chemical pollutants in the air from 100g/m3 to 10-12g/m3 under clean room operating conditions. This document does not deal with industries, processes and productions where the presence of chemicals in the air is not considered to pose a risk of harm to products or processes. It is not the intention of this document to discuss the characteristics of airborne chemical pollutants. This document does not contain classifications for chemical contamination of surfaces.

GB/T 25915.8-2021 Referenced Document

• GB/T 25915.6 Cleanrooms and associated controlled environments.Part 6:Vocabulary

GB/T 25915.8-2021 history

• 2021 GB/T 25915.8-2021 Cleanrooms and associated controlled environments—Part 8: Classification of air cleanliness by chemical concentration (ACC)
• 2011 GB/T 25915.8-2010 Cleanrooms and associated controlled environments.Part 8:Classification of airborne molecular contamination

GB/T 25915.8-2021 -All Parts