The metrics established through this standard provide uniform ratings for products manufactured by various brands, ensuring that a diffuser from one supplier is measured using the exact same metrics as a grille from another. Key Performance Components Evaluated:
ASHRAE Standard 70 establishes uniform, repeatable laboratory testing methods. It ensures that whenever an HVAC component manufacturer publishes performance data (such as throw distance, pressure drop, or noise criteria), that data can be directly and fairly compared across brands. Core Definitions Under the Standard
: Reaffirmed again in 2021, serving as the final bridge before a complete revision. ashrae standard 702006 pdf updated
: Static pressure, total pressure, and velocity measurements.
Measuring the sound power levels produced by air-terminal devices. Core Definitions Under the Standard : Reaffirmed again
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ASHRAE (American Society of Heating, Refrigerating, and Air-Conditioning Engineers) Standard 70-2006 provides a method for testing air-to-air heat exchangers, which are commonly used in heating, ventilation, and air conditioning (HVAC) systems. You can obtain official, updated copies of the
ASHRAE Standard 70-2006 is a guideline for indoor air quality in commercial and industrial buildings. The standard was first published in 2006 and has since undergone updates to reflect the latest research and technologies. The standard provides a framework for building owners, architects, engineers, and facility managers to design, operate, and maintain HVAC systems that promote good indoor air quality.
The standard, titled "Method of Testing for Rating the Performance of Air Outlets and Inlets," provides standardized, reproducible laboratory procedures to evaluate how air devices (diffusers, grilles, registers) behave under various conditions.
For over fifteen years, the 2006 core testing rules remained the gold standard through successive Reaffirmed (RA) cycles, including ANSI/ASHRAE 70-2006 (RA 2021) . Reaffirmations mean the technical procedures remained identical, but the document was reviewed and kept active without structural updates. 2. The Current Version: ASHRAE Standard 70-2023