Always check the ASHRAE Technology portal for free downloads of approved addenda or interpretations that may have been released since the last full publication. Read-Only Versions of ASHRAE Standards
ASHRAE standards are copyrighted documents. Downloading a "free" PDF from unauthorized file-sharing sites is a violation of copyright law.
Excessive noise from grilles is a frequent tenant complaint. Standard 70 sound power data allows designers to perform accurate room sound analyses, keeping spaces within target Noise Criterion (NC) ranges for schools, offices, and hospitals. Energy Efficiency
While the core purpose remains the same, the 2023 edition is the most significant update to this standard in nearly two decades. The table below summarizes the key differences: ashrae standard 702006 pdf updated
Testing laboratories operating under this standard must isolate and compute:
You can find older versions and reaffirmed copies, such as the ASHRAE 70-2006 (RA 2021) , on the ANSI Webstore or the ASHRAE Bookstore. Key Technical Specifications (Standard 70-2006)
Its primary purpose is to establish uniform methods of testing for: Always check the ASHRAE Technology portal for free
: Throw, drop, and the envelope of terminal velocities within a treated zone. Sound Generation : Sound power levels ( Lwcap L sub w
High pressure drops across poorly designed registers force supply fans to work harder. Accurately predicting static pressure loss helps minimize system brake horsepower (BHP) and aligns with energy targets. 5. Summary of Standard 70 Key Data Performance Parameter Measurement Unit Critical Impact Isothermal Throw Feet / Meters Determines room air mixing and prevents dumping. Sound Power ( Lwcap L sub w ) Decibels (dB) by Octave Band Input data for calculating space Noise Criterion (NC). Static Pressure ( ) Inches of Water Gauge (in. w.g.) Impacts fan selection and energy consumption. How to Access Official Copies
The ASHRAE Standard 70-2006 PDF updated is available for download from the ASHRAE website. You can purchase the standard online or download a free preview copy. Excessive noise from grilles is a frequent tenant complaint
The standard provides several benefits, including:
: Testing for "throw" (how far air travels) at different terminal velocities.