Go to the (www.ashrae.org/bookstore). Search for "Standard 70." You will find ANSI/ASHRAE Standard 70-2020 . This is the updated standard you actually need. It is available as:
If you are a manufacturer of diffusers, grilles, registers, or unit ventilators, Standard 70-2006 (or the updated 2023 version) defines the exact protocol you must follow to legally claim compliance or generate catalog performance data.
Standard 70 is a copyrighted document and must be purchased from authorized distributors. You cannot legally download a free PDF version from a random public website.
Now covers a broader range of air-device types and sizes, including modern displacement ventilation and underfloor outlets. Instrument Accuracy: ashrae standard 702006 pdf updated
Purchase the latest Standard 70-2006 (RA 2021) in PDF or print format.
ASHRAE functions on a rolling five-year revision cycle to ensure that guidelines keep up with modern technology.
Higher than expected pressure drops can lead to higher fan energy usage. Conclusion Go to the (www
: The distance the air stream travels from the outlet face to a specific terminal velocity (e.g., 50 fpm).
A combination assembly combining a grille with an integrated volume-control damper.
Do you need to know how Standard 70 interacts with other standards like (Thermal Comfort)? It is available as: If you are a
ASHRAE Standard 70-2006, as updated by its 2021 reaffirmation, remains the cornerstone for testing air distribution hardware. For the most accurate, reliable, and modern data, professionals should always rely on the most recent published version available from ASHRAE.
Standard 70 ensures that a diffuse terminal rated at NC 30 by Manufacturer A will sound identical to a diffuse terminal rated at NC 30 by Manufacturer B. 3. Throw, Drop, and Spread
ASHRAE Standard 70-2006 was formally . A reaffirmation means the technical committee reviewed the document and determined the methodologies remained valid without requiring a full rewrite. The document is officially designated as ANSI/ASHRAE Standard 70-2006 (RA 2011) . Industry Transition to AHRI Standard 880/885