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 While the 70-2006 version is technically superseded, you may still find it referenced in older project specifications.
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: ashrae standard 702006 pdf updated
: Testing for "throw" (how far air travels) at different terminal velocities. ASHRAE standards are typically updated on a five-year cycle
: Now includes a broader range of air-device types and sizes, specifically adding displacement ventilation and underfloor outlets. It is the benchmark manufacturers use to generate
: Testing performance with air that is both the same temperature as the room and at different temperatures. Accessing the PDF and Revisions