Ensure you are using the 2015 version of ISO 14644-1 and 14644-2.
Separative enclosures (clean air hoods, isolators).
(Current version)
Before purchasing, I recommend checking the prices and availability from these sources.
| Part | Title | Core Focus | | :--- | :--- | :--- | | | Classification of air cleanliness by particle concentration | Defines the nine ISO classes and the protocol for classifying a cleanroom based on airborne particle counts. This is the most frequently cited part of the standard. | | ISO 14644-2:2015 | Monitoring to provide evidence of cleanroom performance | Specifies the requirements for periodic monitoring to prove that a cleanroom continues to meet its specified ISO class. | | ISO 14644-4:2022 | Design, construction and start-up | Provides a framework for the entire process of creating a cleanroom, from defining initial requirements through to final commissioning. | | ISO 14644-5:2004 | Operations | Outlines the basic requirements for how to properly operate and maintain a cleanroom to minimize contamination. | | ISO 14644-7:2004 | Separative devices (e.g., clean air hoods, glove boxes, isolators) | Focuses on the design and use of enclosed devices that provide local clean environments. | | ISO 14644-14:2016 | Assessment of suitability for use of equipment | Provides a methodology for evaluating whether equipment (machinery, tools, etc.) is suitable for use in a cleanroom. | | ISO 14644-16:2019 | Energy efficiency in cleanrooms | Offers guidance on optimizing energy usage, a major operational cost for cleanrooms, without compromising cleanliness. | iso 146446 pdf
Many pharmaceutical and engineering consulting firms publish "white papers" or "guides to the standard" for free. These summarize the changes (specifically the shift from the 1999 version to the 2015 version regarding statistical sampling methods).
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The ISO 14644 standards were developed by the International Organization for Standardization (ISO) to harmonize the classification of cleanrooms worldwide. Before this, companies relied on diverse local standards (like the US Federal Standard 209E).
While full PDFs are not legally available for free, there are avenues for accessing the content at no cost: | Part | Title | Core Focus |
In pharmaceutical manufacturing, the US FDA and other regulatory bodies require cleanrooms to meet specific ISO classifications. A failure to comply can lead to product recalls, production shutdowns, and legal liability.
The ISO 14644 standards are copyrighted documents. To download the official PDF, you must purchase it from the ISO Store or your national standards body (e.g., ANSI in the US, BSI in the UK, DIN in Germany).