Cleanroom operators and technicians need a shared vocabulary. The ISO 14644-6 PDF serves as an excellent training manual, reducing errors caused by misinterpretation of terms like "operator-generated contamination" or "surface cleanliness."

The ISO 14644-6 PDF document covers various aspects of cleanroom vocabulary, including:

When an auditor questions your cleanroom’s classification, open your to the relevant definition. This demonstrates that your program is based on international consensus.

is part of the ISO 14644 series of standards, which governs cleanrooms and associated controlled environments. Specifically, Part 6 is titled: