: Testing performance with air that is both the same temperature as the room and at different temperatures. Accessing the PDF and Revisions
: Testing for "throw" (how far air travels) at different terminal velocities. ashrae standard 702006 pdf updated
ASHRAE Standard 70 defines the laboratory methods for testing air outlets and inlets used in ducted and unducted systems. It is the benchmark manufacturers use to generate the performance data found in their product catalogs, such as grilles, registers, and diffusers. The standard provides uniform methods for determining: : Testing performance with air that is both
ASHRAE standards are typically updated on a five-year cycle. While the 70-2006 version is technically superseded, you may still find it referenced in older project specifications. It is the benchmark manufacturers use to generate
: Updates installation procedures and facility definitions to more accurately reflect how devices perform in their intended real-world applications.
: Clarifies data calculation methods to ensure they apply correctly to the wider variety of air devices currently on the market. What is Standard 70?
The 2023 update introduces several critical improvements over the 70-2006 (RA 2021) version to better align with modern HVAC technology: