What Is an ISO 6 Cleanroom Classification?

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What Is an ISO 6 Cleanroom Classification?

An ISO-6 cleanroom represents one of the higher tiers of cleanliness in the cleanroom classification system established by the International Organization for Standardization, a private entity with 167 national standards bodies as members. This classification is widely adopted in the United States, particularly for pharmaceutical, medical device, biotech, and life-science cleanrooms. Globally, outside of the semiconductor industry, the ISO cleanroom standards are applied across various sectors. In contrast, the United States has historically used the FED 209E classification system for industrial applications like semiconductor and printed circuit board manufacturing. The ISO system measures particle concentration in particles per cubic meter, while the FED 209E system uses particles per cubic foot. An ISO-6 cleanroom aligns with the FED 209E Class 1000 cleanroom, indicating comparable cleanliness levels.