EN ISO 14644-1:1999

Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness (ISO 14644-1:1999)

This Part of this European Standard specifies the classification of particulate cleanliness for cleanrooms and clean air controlled spaces in three possible occupancy states according to the number concentration of airborne particulate matter present.

Reinräume und zugehörige Reinraumbereiche - Teil 1: Klassifizierung der Luftreinheit (ISO 14644-1:1999)

Dieser Teil der Internationalen Norm ISO 14644 enthält die Klassifizierung der Luftreinheit in Reinräumen und zugehörigen Reinraumbereichen. Die Ausführungen und Festlegungen der Klassifizierung nach dieser Norm beziehen sich ausschließlich auf die Konzentration luftgetragener Partikel. Desweiteren werden für Klassifizierungßwecke nur Partikelgruppen in Betracht gezogen, deren Summenhäufigkeitsverteilung zwischen den kritischen Partikelgrößen ( untere Grenze) 0,1 um un 5 um basiert.

Salles propres et environnements maîtrisés apparentés - Partie 1: Classification de la propreté de l'air (ISO 14644-1:1999)

La présente partie de l'ISO 14644 comprend la classification de la propreté de l'air des salles propres et environnements maîtrisés apparentés exclusivement en termes de concentration des particules en suspension dans l'air. Pour l'application de cette classification, on ne considère que les populations de particules présentant une distribution cumulée dont le seuil inférieur de sensibilité se situe dans l'étendue granulométrique de 0,1 µm à 5 µm. La présente partie de l'ISO 14644 ne donne pas la classification des populations de particules sortant de l'étendue granulométrique de référence de 0,1 µm à 5 µm. Les concentrations de particules ultrafines (plus petites que 0,1 µm) et de macroparticules (plus grandes que 5 µm) peuvent être utilisées pour quantifier ces populations en terme de descripteurs U et M. La présente partie de l'ISO 14644 n'est pas applicable pour caractériser la nature physique, chimique, radiologique ou viable des particules en suspension dans l'air.
NOTE La distribution granulométrique réelle de particules par taille à l'intérieur de l'étendue de référence n'est pas habituellement prévisible et est typiquement variable avec le temps.

Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness (ISO 14644-1:1999)

General Information

• Status: Withdrawn
• Publication Date: 30-Apr-1999
• Withdrawal Date: 22-Dec-2015
• ICS: 13.040.01 - Air quality in general
• Technical Committee: CEN/TC 243 - Cleanroom technology
• Drafting Committee: CEN/TC 243 - Cleanroom technology
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 23-Dec-2015
• Ref Project: SIST EN ISO 14644-1:2000 - Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness (ISO 14644-1:1999)

Relations

• Replaced By: EN ISO 14644-1:2015 - Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness by particle concentration (ISO 14644-1:2015)
• Effective Date: 30-Dec-2015

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 14644-1:2000
01-december-2000
Cleanrooms and associated controlled environments - Part 1: Classification of air
cleanliness (ISO 14644-1:1999)
Cleanrooms and associated controlled environments - Part 1: Classification of air
cleanliness (ISO 14644-1:1999)
Reinräume und zugehörige Reinraumbereiche - Teil 1: Klassifizierung der Luftreinheit
(ISO 14644-1:1999)
Salles propres et environnements maîtrisés apparentés - Partie 1: Classification de la
propreté de l'air (ISO 14644-1:1999)
Ta slovenski standard je istoveten z: EN ISO 14644-1:1999
ICS:
13.040.35 Brezprašni prostori in Cleanrooms and associated
povezana nadzorovana controlled environments
okolja
SIST EN ISO 14644-1:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 14644-1:2000

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SIST EN ISO 14644-1:2000

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SIST EN ISO 14644-1:2000

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SIST EN ISO 14644-1:2000
INTERNATIONAL ISO
STANDARD 14644-1
First edition
1999-05-01
Cleanrooms and associated controlled
environments —
Part 1:
Classification of air cleanliness
Salles propres et environnements maîtrisés apparentés —
Partie 1: Classification de la propreté de l'air
A
Reference number
ISO 14644-1:1999(E)

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SIST EN ISO 14644-1:2000
ISO 14644-1:1999(E)                          © ISO
Contents
Page
Foreword . iii
Introduction . iv
1 Scope . 1
2 Definitions . 1
3 Classification . 3
4 Demonstration of compliance . 4
Annexes
Annex A (informative) Graphical illustration of the classes of Table 1 . 5
Annex B (normative) Determination of particulate cleanliness classification
using a discrete-particle-counting, light-scattering instrument. 6
Annex C (normative) Statistical treatment of particle concentration data . 9
Annex D (informative) Worked examples of classification calculations . 10
Annex E (informative) Considerations for the counting and sizing of particles
outside the size range applicable for classification . 13
Annex F (informative) Sequential sampling procedure . 15
Bibliography . 18
Figures
Figure A.1 Graphical representation of ISO-class concentration limits
for selected ISO classes . 5
Figure F.1 Boundaries for pass or fail by the sequential sampling
procedure . 15
Tables
Table 1 Selected airborne particulate cleanliness classes for
cleanrooms and clean zones . 3
Table C.1 Student’s t distribution for the 95% upper confidence limit . 9
Table F.1 Upper and lower limits for time at which C observed counts
should arrive . 16
© ISO 1999
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 • CH-1211 Genève 20 • Switzerland
Internet  [e-mail]
Printed in Switzerland
ii

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SIST EN ISO 14644-1:2000
© ISO
ISO 14644-1:1999(E)
Introduction
Cleanrooms and associated controlled environments provide for the control of airborne
particulate contamination to levels appropriate for accomplishing contamination-sensitive
activities. Products and processes that benefit from the control of airborne contamination
include those in such industries as aerospace, microelectronics, pharmaceuticals, medical
devices, food, and healthcare.
This part of ISO 14644 assigns ISO classification levels to be used for the specification of
air cleanliness in cleanrooms and associated controlled environments. It also prescribes the
standard method of testing as well as the procedure for determ
...