dB (A) definition

dB (A) means a unit of measurement of sound pressure level as contemplated in SABS 083;
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dB (A) means the composite abbreviation for the A-weighted sound level and the unit of sound level, the decibel.
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dB (A) means the sound level as measured with a sound level meter using the "A" weighting network. This frequency- weighting network for the measurement of sound levels shall comply with standards established by the American National Standards Institute specifications for sound level meters S1.4-1971, as amended or S1.4-1983, as amended.
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Examples of dB (A) in a sentence

  • The noise generated by the car in static must not exceed 100 dB (A) at three-quarter maximum revs.

  • For purposes of this Lease, “acceptable levels” shall mean that the Roof Equipment produces a noise level of not more than 75 dB (A) at four (4) meters, but in no event greater than that permitted under applicable Laws.

  • At a pressure altitude of [*CTR*], shall be as follows: [*CTR*] SPL [dB (A)] [*CTR*] SIL [dB] [*CTR*] [*CTR*] SPL [dB (A)] [*CTR*] SIL [dB] [*CTR*] Noise levels shall be measured at a height of [*CTR*] above the passenger compartment floor on the aisle center lines in the passenger seated area.

  • Number of cylinders Cylinder bore mm Stroke mm Speed Rpm Mean Piston Speed m/s Mean effective Pressure Bar Compression ratio Number of inlet valves Number of outlet valves Direction of rotation faced towards Flywheel Noise level ---dB (A) ---m distance B.

  • The noise level shall not be more than 60 dB (A) at normal operation measured horizontally 1m away and 1.5 m above ground level.


More Definitions of dB (A)

dB (A) means decibel - A - weighted, a unit of measurement of sound level corrected to the A - weighted scale using a reference level of 20 micropascals;
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dB (A) means the A-weighted sound pressure level expressed in decibels;
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dB (A) means the sound pressure level in decibels measured on the A scale of a sound level meter;
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dB (A) means the A-weighted sound level in decibels, as measured with a sound level meter that meets the requirements for a type 1, 2, S1A or S2A in American National Standard Specification for Sound Level Meters ANSI S1.4.
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dB (A). ) – means A–weighted sound pressure level in decibels. See definition for A–weighting.
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dB (A) means the composite abbreviation for the A-
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dB (A) means the intensity of a sound expressed in decibels read from a calibrated sound level meter utilizing the A-level weighting scale and the fast meter response, as specified in American National Standards Institute Standard S 1.4-1971.
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