BS EN ISO 14644-8:2022

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Cleanrooms and associated controlled environments – Assessment of air cleanliness by chemical concentration (ACC)

Published By	Publication Date	Number of Pages
BSI	2022	36

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Categories: 13.040.35 - Cleanrooms and associated controlled environments, BSI

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Description

This document establishes typical assessment processes to determine grading levels of air chemical cleanliness (ACC) in cleanrooms and associated controlled environments, in terms of airborne concentrations of specific chemical substances (individual, group or category), and provides a protocol to include test methods, analysis and time-weighted factors for their determination. This document currently considers only concentrations of air chemical contaminants between 100 g/m3 and 10?12 g/m3 under cleanroom operational conditions. This document is not relevant for application in those industries, processes or productions where the presence of airborne chemical substances is not considered a risk to the product or process. It is not the intention of this document to describe the nature of air chemical contaminants. This document does not give a classification of surface chemical contamination.

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PDF Pages	PDF Title
2	undefined
5	European foreword Endorsement notice
9	Foreword
10	Introduction
12	1 Scope 2 Normative references 3 Terms and definitions 3.1 General
13	3.2 Contaminant categories
14	4 Testing and monitoring using grading levels 4.1 General 4.2 ISO-ACC descriptor format
16	5 Demonstration of compliance with an ISO-ACC level 5.1 Principle 5.2 Testing
17	5.3 Test report
18	Annex A (informative) Parameters for consideration
22	Annex B (informative) Typical contaminants
26	Annex C (informative) Typical methods of measurement
30	Annex D (informative) Consideration of specific requirements for separative devices
32	Bibliography

Additional information

Status	Definitive
Pages	36
Publication Date	2022-07-13
ISBN	978 0 539 16125 0
Standard Number	BS EN ISO 14644-8:2022
Title	Cleanrooms and associated controlled environments – Assessment of air cleanliness by chemical concentration (ACC)
Identical National Standard Of	EN ISO 14644-8, ISO 14644-8
Replaces	BS EN ISO 14644-8:2013
Descriptors	Verification, Air, Test equipment, Sampling methods, Classification systems, Environmental cleanliness, Air pollution, Contamination, Designations, Clean rooms, Chemical analysis and testing, Environment (working), Concentration, Molecules
Publisher	BSI
Committee	LBI/30
ICS Codes	13.040.35 - Cleanrooms and associated controlled environments

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BS EN ISO 14644-8:2022

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