Air filters for general ventilation. Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured (ISO 16890-3:2016)
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ISO 16890-3:2016 specifies the test equipment and the test methods used for measuring the gravimetric efficiency and resistance to air flow of air filter for general ventilation. It is intended for use in conjunction with ISO 16890-1, ISO 16890-2 and ISO 16890-4. The test method described in this part of ISO 16890 is applicable for air flow rates between 0,25 m3/s (900 m3/h, 530 ft3/min) and 1,5 m3/s (5 400 m3/h, 3 178 ft3/min), referring to a test rig with a nominal face area of 610 mm × 610 mm (24 in × 24 in). ISO 16890 (all parts) refers to particulate air filter elements for general ventilation having an ePM1 efficiency less than or equal to 99 % and an ePM10 efficiency greater than 20 % when tested as per the procedures defined within ISO 16890 (all parts). Air filter elements outside of this aerosol fraction are evaluated by other applicable test methods. See ISO 29463 (all parts). Filter elements used in portable room-air cleaners are excluded from the scope of this part of ISO 16890. The performance results obtained in accordance with ISO 16890 (all parts) cannot by themselves be quantitatively applied to predict performance in service with regard to efficiency and lifetime.
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Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 Air flow and resistance
3.2 Test device
3.3 Gravimetric efficiency
3.4 Other terms
4 Symbols and abbreviated terms
5 General test device requirements
5.1 Test device requirements
5.2 Test device preparation
6 Loading dust
7 Test equipment
8 Qualification of test rig and apparatus
8.1 Schedule of qualification testing requirements
8.2 Dust feeder air flow rate
8.3 Final filter efficiency qualification test
9 Test sequence dust-loading procedure
9.1 Test procedure for the filter
9.2 Dust loading
10 Reporting results
10.1 General
10.2 Required reporting elements
Annex A Resistance to air flow calculation (informative)
ISO 15957:2015 Test dusts for evaluating air cleaning equipment
ISO 16890-1:2016 Air filters for general ventilation -- Part 1: Technical specifications, requirements and classification system based upon particulate matter efficiency (ePM)
ISO 16890-3:2016 Air filters for general ventilation -- Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured
ISO 15957:2015 Test dusts for evaluating air cleaning equipment
ISO 16890-1:2016 Air filters for general ventilation -- Part 1: Technical specifications, requirements and classification system based upon particulate matter efficiency (ePM)
ISO 16890-3:2016 Air filters for general ventilation -- Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured
ISO 16890-4:2016 Air filters for general ventilation -- Part 4: Conditioning method to determine the minimum fractional test efficiency
ISO 29463-1:2011 High-efficiency filters and filter media for removing particles in air -- Part 1: Classification, performance testing and marking
ISO 29464:2011 Cleaning equipment for air and other gases -- Terminology