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ANSI/ASHRAE Standard 52.2-2017 Edition

ANSI/ASHRAE Standard 52.2-2017 Edition


ANSI/ASHRAE Standard 52.2-2017 Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size

Standard 52.2 establishes a method of laboratory testing to measure the performance of general ventilation air-cleaning devices in removing particles of specific diameters.

Changes to the 2017 edition include the following:

  • Modifications were made to the MERV table to adjust the threshold for specific MERVs and allow for the 16 graduations to be more observable in testing.
  • To address user concerns about reproducibility and reliability of the test method, ASHRAE commissioned Research Project RP-1088, a comprehensive round robin of multiple labs, including multiple levels of filtration performance. The changes in the 2017 edition of the standard are based on direct recommendations of the research project.
  • Changes were made with the intent of making the data on reports more mandatory.

You can also Read ANSI/ASHRAE Standard 32.1-2017 – Testing Refrigerated Vending Machines for Sealed Beverages

The goal of was to improve the user’s experience by ensuring that reports being provided by labs and manufacturers shared the same data, allowing for a simpler evaluation of products. d. New Informative Appendix K uses the base methodology to test across sequenced filters. This allows users a method of testing their system in a controlled lab environment.

ANSI/ASHRAE Standard 52.2-2017 Edition Content

  • Purpose.ASHRAE,ANSI,Standard 52.2,Testing General Ventilation,ASHRAE Standard 52.2
  • Scope
  • Definitions and Acronyms
  • Test Apparatus.
  • Apparatus Qualification Testing
  • Test Materials.
  • Selection and Preparation of the Test Device.
  • Test Procedures
  • Measurement of Resistance versus Airflow.
  • Determination of Particle Size Efficiency.
  • Reporting Results.
  • Minimum Efficiency Reporting Value (MERV) for Air Cleaners.
  • Normative References.

ANSI/ASHRAE Standard 52.2-2017 Edition Appendix

  • A: Commentary
  • B: Test Procedure Suggestions and Examples
  • C: How to Read a Test Report
  • D: Minimum Efficiency Reporting Guidance
  • E: Cross-Reference and Application Guidelines .
  • F: Acronyms and Conversion Formula
  • G: Informative References.
  • H: Addenda Description Information.
  • I : (Intentionally Left Blank)
  • J: Optional Method of Conditioning a Filter Using Fine KCl Particles to Demonstrate Efficiency Loss That Might Be Realized in Field Applications
  • K: Optional Method of Testing Two Air Filters Arranged in Series in a System to Evaluate Particle Removal, Dust Loading, and also Pressure Drop Increase That Might  Realized in Field Applications.



ANSI/ASHRAE Standard 52.2-2017 Edition

ANSI/ASHRAE Standard 52.2-2017 Edition

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