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DD ISO/TS 21220:2009

Withdrawn

Particulate air filters for general ventilation. Determination of filtration performance

1 Scope This Technical Specification presents test methods and specifies a test rig for measuring the filter performance of particulate air filters used for general ventilation. The test rig is desig…

ISO/TS 21220:2009

Withdrawn

Particulate air filters for general ventilation — Determination of filtration performance