: Depending on the current policies of ASHRAE, you might be able to purchase a copy of the standard or download it if it's available for free or through a subscription service. Some standards may be available for preview.
"Air outlets and inlets shall be tested in accordance with , 'Method of Testing the Performance of Air Outlets and Air Inlets,' and performance data (pressure drop, throw, and noise criteria) shall be submitted for review."
The transition from the 2006 (RA 2021) version to the 2023 standard introduced several critical changes for HVAC engineers and manufacturers: ashrae standard 702006 pdf updated
Clarifies data calculation methods to ensure they apply accurately across the new, wider range of covered devices. Accuris Standards Store Overview of Standard 70
A critical nuance of Standard 70 is that it defines methods using "ideal inlet conditions." This means the data obtained reflects the performance of the device alone and does not account for the effects of flex duct, neck-mounted dampers, or 90-degree elbows found in real installations. This distinction is vital for engineers to understand when applying catalog data to system design. : Depending on the current policies of ASHRAE,
Now covers a broader range of air-device types and sizes, including modern displacement ventilation and underfloor outlets. Instrument Accuracy:
Required to be in accordance with ASHRAE Standard 41.2 , with an accuracy of of the reading. Temperature Accuracy: Instruments must have an accuracy of 0.2∘F0.2 raised to the composed with power cap F 0.1∘C0.1 raised to the composed with power cap C Accuris Standards Store Overview of Standard 70 A
The primary source is the . ASHRAE members generally receive access to standards as part of their membership benefits or can purchase PDFs at a discount.
The 2006 edition established the baseline for several critical measurements in HVAC testing:
remains the core technical reference for testing the performance of air outlets and inlets . While the technical content was originally established in 2006, it has been reaffirmed as recently as 2021 (designated as RA 2021 ). Core Content & Purpose
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