AABC National Standards for Total System Balance,
8th Edition

Newly Revised AABC Standards Available Now

After undergoing a comprehensive revision and American National Standards Institute (ANSI) approval process, the 8th edition AABC Standards offer the most updated guidance and requirements for Total System Balance.

The AABC National Standards for Total System Balance is the comprehensive manual for the test and balance industry. It details the minimum standards for total system balance, assists design professionals in achieving design intent, provides a better understanding of the scope of work required of the TAB agency, and ensures that proper methods and procedures are followed in the test and balance process.

ANSI Designation: ANSI/AABC MN-1-2026

Read the press release here.

Note: Hardcover copies will ship in early October.

What's New in the 8th Edition

Updates to TAB report requirements & structure.
Updated requirements for instrumentation, calibration, and tolerances.
Updated Pitot tube traverse requirements.
Added information covering fan laws.
New recommendations regarding total leakage for air leakage testing.
Updated procedures for testing constant and variable volume systems.
New discussion of fan system equations.
Added information on energy recovery and temperature control systems.
New discussion of AFLDs and PICVs.
Updated information about cooling tower testing.
New boiler plant procedures.
Significant updates to laboratory and kitchen systems.
Updates to smoke control testing.
A rewritten chapter on HVAC commissioning and commissioning plan.
An entirely new chapter with expanded information on underfloor air distribution systems.