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GB/T 4854.9-2016 Active
GB/T 4854.9-2016 Acoustics—Reference zero for the calibration of audiometric equipment—Part 9:Preferred test conditions for the determination of reference hearing threshold levels
Abstract
This part of GB/T 4854 specifies the test conditions for determining the hearing threshold of subjects in order to establish the standard values of the reference hearing threshold.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 4854.9-2016 |
| CCS | Acoustic metrology |
| ICS | Acoustics and acoustic measurement |
| Implement Date | 2016-09-01 |
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