The Air Movement and Control Association (AMCA) International Inc. announced the full revision of AMCA Publication 311, Certified Ratings Program Product Rating Manual for Fan Sound Performance.

AMCA Publication 311 establishes definitions and specifications to be used in connection with the AMCA Certified Ratings Program for the sound performance of fans. Products that can be licensed by AMCA International to bear the AMCA Certified Ratings Program seal for sound ratings are centrifugal fans, axial fans, power roof ventilators, air curtains, agricultural fans and other air moving devices within the product scope of AMCA.

The new designation for this document is AMCA Publication 311-16, which was adopted by AMCA membership on November 7, 2016.

AMCA International Inc. also announced the revision of Publication 211, Certified Ratings Program Product Rating Manual for Fan Air Performance.

AMCA Publication 211 is to prescribe technical procedures to be used in connection with the AMCA Certified Ratings Program for fan air performance. The program applies only to fans and is not applicable to their component parts such as fan impellers and housings.

The new designation for Publication 211 is AMCA Publication 211-13 (Rev.10-16), which was adopted by AMCA membership on October 11, 2016.

Both are available for no cost at www.amca.org/store.