AABC Publishes Updated National Standards for Total System Balance

The Associated Air Balance Council has published the AABC National Standards for Total System Balance, 8th Edition. This comprehensive manual for the test and balance industry was last updated in 2016.

Like the 7th edition, this newest version is American National Standards Institute approved. ANSI approval signifies that the procedures used by AABC in connection with the development of the standards meet the institute’s essential requirements for openness, balance, consensus and due process.

New, additional and revised content includes:

• Updates to TAB report requirements and structure
• Updated requirements for instrumentation, calibration and tolerances
• 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
• Updated information about cooling tower testing
• New boiler plant procedures
• A rewritten chapter on HVAC commissioning and commissioning plan
• An entirely new chapter with expanded information on underfloor air distribution systems.

For more details, visit https://aabc.com/national-standards/.