Articles from our team on validation, qualification, monitoring and compliance.
ISO 14644-1 classification: how many sampling locations does your room need?
The 2015 revision replaced the square-root rule with a look-up table. Here is how to use it without over- or under-sampling.
Meghraj Parmar5 Oct 20263 min read
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Clean Room Validation
21 Aug 20263 min read
HEPA filter integrity testing: what actually counts as a leak
Aerosol challenge, photometer scanning and the 0.01 % rule, with the field problems that cause false passes.
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Clean Room Validation
30 Jul 20263 min read
Smoke studies: what an inspector looks for in your airflow video
A good airflow visualisation study is filmed like evidence, not like a demo. Planning, filming and the report.
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