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Sound Measurement
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We provide our customers sound measurement and assessment. This includes but not limited to the folllowing:
1. Establish 1/1 and 1/3 octave band sound pressure level of machines in accordance to ISO 6798 and 3746. Frequency ranges from 31.5 Hz up to 10 KHz
2. Third party sound measurement and certification.
3. Test and verify sound pressure levels at industrial and residential sites in accordance to OSHA standards.
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Applicable standards |
IEC 60651 Type2, IEC 60804 Type2, BS EN 6065, 1994, IEC 1260-1995 |
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Microphone |
1/2-inch Electret condenser microphone |
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Accuracy |
+/- 1.5dB (ref 94dB @ 1KHz) |
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Measurement range |
30dB to 130dB |
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Measurement function |
Lp , Leq , LE , Lmax , Lmin |
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Frequency range |
25Hz ~ 10KHz |
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Frequency weighting |
A ,C, Flat |
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Time weighting |
Fast , Slow |
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1/1- 1/3 Analyzer level range |
5 ranges in 10-dB step, 20-90dB/ 30-100dB/ 40-110dB/ 50-120dB/ 60-130dB |
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1/1 Octave and 1/3 Octave band filters |
1/1 Octave band center frequencies : (9 bands)
31.5Hz, 63Hz, 125Hz, 250Hz, 500Hz, 1KHz, 2KHz, 4KHz, and 8KHz.
1/3 Octave band center frequencies : (27 bands)
25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz,
125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz,
630Hz, 800Hz, 1KHz, 1.25KHz, 1.6KHz, 2KHz, 2.5KHz,
3.15KHz, 4KHz, 5KHz, 6.3KHz, 8KHz 10KHz. |
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