Environment Regulation HandbookEnvironment Information Center, 1973 |
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Page 118
... sound level readings that are within 2dB ( A ) of each other are recorded . Numerically average those two maximum sound level read- ings . When appropriate , correct the av- erage figure in accordance with the rules in Subpart F of this ...
... sound level readings that are within 2dB ( A ) of each other are recorded . Numerically average those two maximum sound level read- ings . When appropriate , correct the av- erage figure in accordance with the rules in Subpart F of this ...
Page 122
( k ) " Equivalent Sound Level " means the level , in decibels , of the mean- square A - weighted sound pressure during a stated time period , with reference to the square of the standard reference sound pressure of 20 micropascals . It ...
( k ) " Equivalent Sound Level " means the level , in decibels , of the mean- square A - weighted sound pressure during a stated time period , with reference to the square of the standard reference sound pressure of 20 micropascals . It ...
Page 3
. Day - night average sound level , abbreviated as DNL. Community Noise Equivalent Level , abbreviated as CNEL . The ... noise levels . In many instances the noise environment will vary across a site , with portions of the site being in ...
. Day - night average sound level , abbreviated as DNL. Community Noise Equivalent Level , abbreviated as CNEL . The ... noise levels . In many instances the noise environment will vary across a site , with portions of the site being in ...
Contents
Aircraft approach noise 14 CFR 91 85 | 29 |
EPA certification 40 CFR 203 | 41 |
FHWA motor carriers 49 CFR 325 | 115 |
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A-weighted accordance action active ingredient Administrative Law Judge agricultural aircraft aircraft airplanes amended application appropriate approved arbitrator authority cancellation certification cide Commission compliance compressor configuration container dB(A decibels decision determine device Director of Nuclear economic poison emission standards enforcement environment Environmental Protection Agency evaluation exemption exhaust system experimental use permit facility Federal Insecticide Federal Register FIFRA section filed Fungicide hearing intended isooctane issuance issued labeling manufacturer means measurement ment meter microphone ministrator motorcycle Noise Control Act noise levels packaging paragraph party person pesti pesticide product plant prescribed presiding officer procedures proceeding proposed purposes pursuant registered pesticide registration regulations regulatory restricted restricted use pesticides risk Rodenticide Rodenticide Act safety goals sonic boom sound level sound level meter specified Stat statement submitted subpart term test request tion toxicity trucks violation