IEC-61157 Complete Document History
Standard means for the reporting of the acoustic output of medical diagnostic ultrasonic equipment

Complete Current Edition:
   EDITION 2.1 - CONSOLIDATES AMENDMENT 1 - Jan. 1, 2013

Obsolete Revision Information:
   FOR 2ND EDITION AMENDMENT 1 SEE - IEC-61157-AM1 - Jan. 28, 2013
   ED. 2.0 CORRIGENDUM 1 - CORRIGENDUM 1 FOR EDITION 2.0 - Aug. 12, 2008
   EDITION 2.0 - ULTRASONIC EQUIPMENT - Aug. 1, 2007