On February 27, 2014, International Bureau of Weights and Measures (BIPM) has published calibration and measurement capabilities – CMCs for 12 calibration services in the field of acoustics, ultrasound and vibration (AUV), subfield of sound in air, which Directorate of Measures and Precious Metals conducts, and relating to calibration of laboratory standard microphones (LS1P and LS2P) by primary inverse calibration method.

A list of DMDM calibration capabilities is available on the BIPM website:
(http://kcdb.bipm.org/AppendixC/country_list_search.asp?page=1&pge=1&CountSelected=RS&type=AUV).