The purpose of this document is to prescribe and establish
procedures to be used in the development and publication
of certified performance ratings for airflow measurement
stations. Certified ratings provide assurance to the
buyer, user and specifier that the manufacturer's published
performance ratings for airflow measurement stations are
repeatable. The ratings also provide information on how the
product was tested, what appurtenances (accessories or
optional equipment) were accounted for in the ratings and
other pertinent information.This publication provides a procedure for the verification
of the manufacturer's performance ratings on a regular
schedule through check-testing of products in the AMCA
International laboratory.The publication also provides assurance that competitive
ratings are comparable at the point where the output data is
acquired and that they are based on standard test methods
on ratings procedures.This publication is an extension of the AMCA Certified Rating
Program. Information on the operation of the program is
given in AMCA Publication 11, Certified Ratings Program '
Operating Manual.