ASHRAE 52.2 : 2017

Foreword
1 Purpose
2 Scope
3 Definitions and Acronyms
4 Test Apparatus
5 Apparatus Qualification Testing
6 Test Materials
7 Selection and Preparation of the Test Device
8 Test Procedures
9 Measurement of Resistance versus Airflow
10 Determination of Particle Size Efficiency
11 Reporting Results
12 Minimum Efficiency Reporting Value (MERV) for Air Cleaners
13 Normative References
Informative Appendix A: Commentary
Informative Appendix B: Test Procedure Suggestions and Examples
Informative Appendix C: How to Read a Test Report
Informative Appendix D: Minimum Efficiency Reporting Guidance
Informative Appendix E: Cross-Reference and Application Guidelines
Informative Appendix F: Acronyms and Conversion Formulae
Informative Appendix G: Informative References
Informative Appendix H: Addenda Description Information
Informative Appendix I: (Intentionally Left Blank)
Informative Appendix J: Optional Method of Conditioning a Filter
                        Using Fine KCl Particles to
                        Demonstrate Efficiency Loss That Might Be
                        Realized in Field Applications
Informative Appendix K: Optional Method of Testing Two Air Filters
                        Arranged in Series in a System to
                        Evaluate Particle Removal, Dust Loading, and
                        Pressure Drop Increase That
                        Might Be Realized in Field Applications

Defines a method of laboratory testing to measure the performance of general ventilation air-cleaning devices.