ISO 14644-1, Classification of air cleanliness (U.S. Title: ANSI/IEST/ISO 14644-1:1999)

ISO 14644-1, Cleanrooms and associated controlled environments--Part 1: Classification of air cleanliness

The first official internationally approved Standard in the ISO 14644 series, Part 1: Classification of air cleanliness may be ordered directly through IEST. ISO Standard 14644-1 was the first ISO International Standard prepared by ISO Technical Committee 209 (ISO/TC 209). IEST serves as the official Secretariat for ISO/TC 209, which developed the document as part of a series of 11 documents to serve the needs of the global contamination control community. The document was submitted as an American National Standard and has been adopted as ANSI/IEST/ISO 14644-1:1999 in the United States, following the cancellation of FED-STD-209.

Introduction to ISO 14644-1
ISO 14644-1 is one part of a series of documents, being developed as International Standards, concerned with cleanrooms and associated subjects. Many factors besides airborne particulate cleanliness must be considered in the design, specifications, operations, and control of cleanrooms and other controlled environments. These are covered in some detail in other parts of the International Standards prepared by ISO/TC 209. 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 aerospace, microelectronics, pharmaceuticals, medical devices, healthcare, food, and others.

Scope of ISO 14644-1
ISO 14644-1 covers the classification of air cleanliness in cleanrooms and associated controlled environments. Classification in accordance with this standard is specified and accomplished exclusively in terms of concentration of airborne particles. Furthermore, the only particle population's consideration for classification purposes are those that have cumulative distributions based on threshold (lower limit) sizes ranging from 0.1 µm to 5 µm.

The United Kingdom is the convenor for the Working Group that produced ISO 14644-1. Over 1,000 professionals from the 34 nations of ISO/TC 209 have united to create a family of true international standards, governing all aspects of the cleanroom community — from design inception to daily operations.

Order this print document
Order this electronic document

View list of ISO 14644 Standards