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ISO 29463-4:2011

High-efficiency filters and filter media for removing particles in air — Part 4: Test method for determining leakage of filter elements-Scan method

Publication date:   Oct 7, 2011

General information

90.92   Standard to be revised   Apr 21, 2026

ISO

ISO/TC 142 Cleaning equipment for air and other gases

International Standard

91.140.30   Ventilation and air-conditioning systems

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Scope

ISO 29463-4:2011 specifies the test procedure of the "scan method", considered to be the reference method, for determining the leakage of filter elements. It is applicable to filters ranging from classes ISO 35 H to ISO 75 U. ISO 29463-4:2011 also describes the other normative methods: the oil thread leak test and the photometer leak test, applicable to classes ISO 35 H to ISO 45 H HEPA filters, and the leak test with solid PSL aerosol. ISO 29463-4:2011 is intended for use in conjunction with ISO 29463-1, ISO 29463-2, ISO 29463-3 and ISO 29463-5.


Life cycle

NOW

PUBLISHED
ISO 29463-4:2011
90.92 Standard to be revised
Apr 21, 2026

REVISED BY

IN_DEVELOPMENT
ISO/AWI 29463-4.2