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GB/T 4854.1-2004 Active
GB/T 4854.1-2004 Acoustics—Reference zero for the calibration of audiometric equipment—Part1:Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 4854.1-2004 |
| CCS | Acoustic metrology |
| ICS | \nNoise (related to humans) |
| Implement Date | 2004-12-01 |
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