| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 4854-1984 | English | RFQ |
ASK
|
Days<=3
|
Standard reference zero for the calibration of pure-tone audiometer
|
GB/T 4854-1984
| Obsolete |
GB/T 4854-1984
|