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ONORM EN ISO 29463-4:2019
High-efficiency filters and filter media for removing particles in air - Part 4: Test method for determining leakage of filter elements-Scan method (ISO 29463-4:2011)
This part of ISO 29463 specifies the test methods of the "scan"method that is regarded as the reference method for the determination of the leakage of filter elements. He is 75 U for filter of classes ISO 35 H up to ISO. He describes also the other standardized methods, the Ölfadenprüfung (see Appendix A) and the photo meter leak test (see Appendix B), applicable for HEPA filter of the classes ISO 35 H up to ISO 45 H, and the leak test with fixed-PSL-aerosol (see Appendix E). It should be used in conjunction with ISO 29463-1, ISO 29463-2, ISO 29463-3 and ISO 29463-5.
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Austrian Standards Institute [on]
Austrian Standards Institute [on]