NF EN ISO 14644-8

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.

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Main informations

Collections

National standards and national normative documents

Publication date

April 2013

Number of pages

32 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 - 20/03/2013

International kinship

ISO 14644-8:2013

European kinship

EN ISO 14644-8:2013
Sumary
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.

Replaced standards (1)
NF EN ISO 14644-8
November 2006
Standard Cancelled
Cleanrooms and associated controlled environments - Part 8 : classification of airborne molecular contamination

Le présent document traite de la classification de la contamination moléculaire aéroportée (AMC) dans les salles propres et les environnements maîtrisés apparentés, en termes de concentrations dans l'air de substances chimiques spécifiques (individu, groupe ou catégorie), et fournit un protocole permettant d'intégrer les méthodes d'essai, l'analyse et les facteurs de pondération dans le temps, dans la spécification en vue d'une classification.

Standard replaced by (1)
NF EN ISO 14644-8
July 2022
Standard Current
Cleanrooms and associated controlled environments - Part 8 : assessment of air cleanliness by chemical concentration (ACC)

<p>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 10<sup>0</sup> g/m<sup>3</sup> and 10<sup>−12</sup> g/m<sup>3</sup> under cleanroom operational conditions.</p> <p>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.</p> <p>It is not the intention of this document to describe the nature of air chemical contaminants.</p> <p>This document does not give a classification of surface chemical contamination.</p>

Table of contents
View the extract
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 3.1 Généralités
    1
  • 3.2 Catégories de contaminants
    2
  • 4 Classification
    3
  • 4.1 Généralités
    3
  • 4.2 Format du descripteur ISO-ACC
    3
  • 5 Démonstration de la conformité
    5
  • 5.1 Principe
    5
  • 5.2 Essais
    5
  • 5.3 Rapport d'essai
    6
  • Annexe A (informative) Paramètres à prendre en compte
    7
  • Annexe B (informative) Contaminants types
    11
  • Annexe C (informative) Méthodes de mesure types
    15
  • Annexe D (informative) Exigences spécifiques à prendre en compte pour les dispositifs séparatifs
    19
  • Bibliographie
    21
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