The most reliable way to obtain the document is through the ASHRAE Bookstore .
Although ASHRAE Standard 70-2006 (RA 2021) is no longer the current edition, it remains a cornerstone document for many professionals. For manufacturers, it represents the baseline method for generating much of their existing product data. For engineers and designers, understanding its provisions is essential for correctly interpreting the performance data in older product literature or for projects built to superseded codes. However, for all new projects and product testing, the active and more current should be the primary reference.
: If you are a member of ASHRAE or have access to a member, they may have access to the standards library and can provide or guide you on how to obtain the standard.
Key improvements in the 2023 version include:
: The core testing methodologies, mathematical formulas, and laboratory setups remain identical to the original 2006 publication. ashrae standard 702006 pdf updated
When a manufacturer tests an air register or diffuser under ASHRAE Standard 70-2006, they are measuring several critical aerodynamic and acoustic properties: A. Isothermal Throw and Drop
ASHRAE Standard 70-2006, which provides methods for testing the performance of air outlets and inlets, was superseded by the updated . Current Status and Editions
ASHRAE Standard 70-2006 has undergone the reaffirmation process. A standard retains its core 2006 technical framework but includes minor editorial updates, errata corrections, or reference updates approved in subsequent years (such as 2011, 2016, or later cycles).
ASHRAE Standard 70 outlines the exact laboratory conditions and instrumentation required to measure four critical performance parameters of air inlets and outlets: : Determining the acoustic noise ( NCcap N cap C RCcap R cap C metrics) generated by the device at various airflow rates. The most reliable way to obtain the document
Clarifies data calculation methods to ensure they apply accurately across the new, wider range of covered devices. Accuris Standards Store Overview of Standard 70
: Now includes a broader range of air-device types and sizes, specifically adding definitions and test methods for displacement ventilation underfloor outlets Enhanced Instrument Accuracy
[ Air Source / Fan ] ---> [ Flow Measuring Station ] ---> [ Plenum / Straight Duct ] ---> [ Test Outlet (Diffuser) ] ---> [ Open Test Space / Room ]
ANSI/ASHRAE 70-2006 (RA 2021) - Method of Testing the Performance of Air Outlets and Air Inlets For engineers and designers, understanding its provisions is
Method of Testing the Performance of Air Outlets and Air Inlets (ANSI Approved), Published by ASHRAE, 2023-01-01
A combination assembly combining a grille with an integrated volume-control damper.
Before hunting for a PDF, it is critical to understand what the document is . , officially titled "Method of Testing for the Discharge Capacity of Pressure Relief Valves for Ammonia and Halocarbon Refrigerants," is a benchmark document for the refrigeration industry.
: Defines updated test facility and installation procedures to more accurately reflect how devices perform in their intended applications. Calculation Clarity