Reference number
Ïã¸ÛÁùºÏ²Ê¿ª½± 14644-1:1999
Ïã¸ÛÁùºÏ²Ê¿ª½± 14644-1:1999
Cleanrooms and associated controlled environments — Part 1: Classification of air cleanliness
Edition 1
1999-05
Withdrawn
Ïã¸ÛÁùºÏ²Ê¿ª½± 14644-1:1999
25052
Withdrawn (Edition 1, 1999)

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