BS 2497-1:1968 PDF

Published Date: 02/29/1988

Standard reference zero for the calibration of pure tone air conduction audiometers-Specification for a standard reference zero at frequencies intermediate between those given in Parts 5 and 6 of BS 2497

Published Date: 03/10/1971

Specification for a reference zero for the calibration of pure-tone audiometers-Data for certain earphones used in commercial practice

Published Date: 09/20/1968

Specification for a reference zero for the calibration of pure-tone audiometers-Data for earphone coupler combinations maintained at certain standardizing laboratories

Published Date: 06/04/2014

Medical device software-Process reference model of medical device software life cycle processes (IEC 62304)

Published Date: 02/01/2001