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

EN ISO 14644-1 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.Original English text of CSN EN Standard.The price of the Standard included all amendments and correcturs.