ASTM-E2611 Complete Document History
Standard Test Method for Normal Incidence Determination of Porous Material Acoustical Properties Based on the Transfer Matrix Method

Complete Current Edition:
   2019 EDITION - Porous Material Acoustical Properties Based on the Transfer Matrix Method - Oct. 1, 2019

Obsolete Revision Information:
   2017 EDITION - Normal Incidence Determination of Porous Material Acoustical Properties Based on the Transfer Matrix Method - July 15, 2017
   2009 EDITION - THE TRANSFER MATRIX METHOD, STANDARD TEST METHOD FOR - March 1, 2009