
ACOUSTICS - THRESHOLD OF HEARING BY AIR CONDUCTION AS A FUNCTION OF AGE AND SEX OTOLOGICALLY NORMAL PERSONS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
SNV NF EN 27029 : 1992 - Identical
EN 27029 : 1991 - Identical
SNV DIN EN 27029 : 1992 - Identical
SNV DIN EN 27029 : 1992 - Identical
ISO 7029 : 2017 - Corresponds
SNV NF EN 27029 : 1992 - Identical
EN 27029 : 1991 - Identical