This item is not available for sale.

Customers Who Bought This Also Bought


About This Item


Full Description

This Standard provides three primary methods for evaluating room noise: a survey method that employs the A-weighted sound level; an engineering method that employs expanded noise criteria (NC) curves; and a method for evaluating low-frequency fluctuating noise using room noise criterion (RNC) curves.

Document History

  1. ASA S12.2-2019

    American National Standard for Criteria for Evaluating Room Noise.

    • Most Recent
  2. ASA S12.2-2008


    American National Standard Criteria for Evaluating Room Noise

    • Historical Version