1. Scope
This standard specifies the test methods and test devices for testing the efficiency and resistance of high efficiency and ultra-low-penetration-air filter medium and filter.
The test methods stated in this standard are applicable to the high efficiency and ultra-low-penetration-air filter medium and filter used for testing and filtration of particles in air. The testing for efficiency and resistance of sub-high-efficiency-particulate-air filter medium and filter may be carried out by reference to this method.
2. Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB/T 1236 Industrial Fans - Performance Testing Using Standardized Airways
GB/T 2624.2-2006 Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-section Conduits Running Full - Part 2: Orifice Plates
GB/T 2624.3-2006 Measurement of Fluid Flow by Means of Pressure Differential Devices Inserted in Circular Cross-section Conduits Running Full - Part 3: Nozzles and Venturi Nozzles
GB/T 6167 Methods for Testing the Performance of Airborne Particle Counter
GB 1U20 Turbine Oils L-TSA
GB 50243 Code of Acceptance for Construction Quality of Ventilation and Air Conditioning Works
3. Terms, Definitions, Symbols and Abbreviations
Foreword I
1. Scope
2. Normative References
3. Terms, Definitions, Symbols and Abbreviations
3.1 Terms and Definitions
3.2 Symbols and Abbreviations
4. Selection of Test Methods
5. Performance Test Method for High Efficiency and ULPA Filter
5.1 Sodium Flame Method
5.2 Oil Mist Method
5.3 Counting Method
6. Performance Test Method for High Efficiency and ULPA Filter Medium
6.1 Test Requirements
6.2 Sodium Flame Method
6.3 Oil Mist Method
6.4 Particle Counting Method with Quasi-monodisperse Challenge Aerosol (for HEPA Filter Medium)
6.5 Particle Counting Method with Monodisperse Challenge Aerosol (for ULPA Filter Medium)
6.6 Particle Counting Method with Polydisperse Challenge Aerosol (for ULPA Filter Medium)
Appendix A (Normative) Construction and Maintenance of Test Devices for Filter with Sodium Flame Method
Appendix B (Informative) Schematic Diagram for Component Construction in Sodium Flame Method
Appendix C (Normative) Construction of Filter Test Device in Oil Mist Method
Appendix D (Informative) Checking, Calibration and Maintenance of Test Device in Oil Mist Method
Appendix E (Normative) Vaporizing-condensing Oil Mist Generator in Filter Test Device in Oil Mist Method
Appendix F (Normative) Oil Mist Detector
Appendix G (Normative) Construction and Maintenance of Filter Test Device in Counting Method
Appendix H (Normative) Construction and Maintenance of Filter Medium Test Device in Sodium Flame Method
Appendix I (Normative) Oil Mist Generator in Filter Medium Test Device
