NF EN ISO 14644-8

NF EN ISO 14644-8

July 2022
Standard Current

Cleanrooms and associated controlled environments - Part 8 : assessment of air cleanliness by chemical concentration (ACC)

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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Main informations

Collections

National standards and national normative documents

Publication date

July 2022

Number of pages

36 p.

Reference

NF EN ISO 14644-8

ICS Codes

13.040.35   Cleanrooms and associated controlled environments

Classification index

X44-101-8

Print number

1

International kinship

ISO 14644-8:2022

European kinship

EN ISO 14644-8:2022
Sumary
Cleanrooms and associated controlled environments - Part 8 : assessment of air cleanliness by chemical concentration (ACC)

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.

Replaced standards (1)
NF EN ISO 14644-8
April 2013
Standard Cancelled
Cleanrooms and associated controlled environments - Part 8 : classification of air cleanliness by chemical concentration (ACC)

ISO 14644-8:2013 establishes the classification 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 within the specification for classification. ISO 14644-8:2013 currently considers only concentrations of air chemical contaminants between 100 and 10−12 g/m3 under cleanroom operational conditions. ISO 14644-8:2013 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 ISO 14644-8:2013 to describe the nature of air chemical contaminants. ISO 14644-8:2013 does not give a classification of surface chemical contamination.

Table of contents
  • Avant-propos
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Essais et surveillance à l'aide des niveaux de gradation
  • 5 Démonstration de la conformité à un niveau ISO-ACC
  • Annexe A (informative) Paramètres à prendre en compte
  • Annexe B (informative) Contaminants types
  • Annexe C (informative) Méthodes de mesure types
  • Annexe D (informative) Exigences spécifiques à prendre en compte pour les dispositifs séparatifs
  • Bibliographie
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