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NPFC - MIL-PRF-87819 - HEADSET-MICROPHONE, (HEARING PROTECTIVE TYPE, HIGH AND MODERATE AMBIENT NOISE LEVELS), GENERAL SPECIFICATION FOR Organization: NPFC
Date: 2015-02-23
Description: Products delivered under this specification are intended for use in high and moderate ambient noise level environments. These environments are areas where the ambient noise levels are between 105 dB SPL and 125 dB SPL (i.e., ground crew and aircrew).
ASA - S3.1 - AMERICAN NATIONAL STANDARD MAXIMUM PERMISSIBLE AMBIENT NOISE LEVELS FOR AUDIOMETRIC TEST ROOMS Organization: ASA
Date: 1999-08-03
Description: However, to ensure that hearing tests are not influenced by excessive ambient noise masking, there is a need to specify maximum permissible ambient noise levels (MPANLs) that can be allowed in an audiometric test room.
DLA - QPL-87819-QPD - HEADSET-MICROPHONE (HEARING PROTECTIVE TYPE, HIGH AND MODERATE AMBIENT NOISE LEVELS), GENERAL SPECIFICATION FOR - QPDS NOT AVAILABLE AS A PDF, REFER TO THE CORRESPONDING QPL WITH CORRESPONDING DATE. Organization: DLA
Date: 2015-09-01
Description: QUALIFIED PRODUCTS LIST OF PRODUCTS QUALIFIED UNDER PERFORMANCE SPECIFICATION MIL-PRF-87819 HEADSET-MICROPHONE (HEARING PROTECTIVE TYPE, HIGH AND MODERATE AMBIENT NOISE LEVELS), GENERAL SPECIFICATION FORThis list has been prepared for use by or for the Government in the acquisition of products covered by Specification MIL-PRF-87819.
ASA 99 - MAXIMUM PERMISSIBLE AMBIENT NOISE LEVELS FOR AUDIOMETRIC TEST ROOMS Organization: ASA
ASA - ANSI/ASA S12.72 - AMERICAN NATIONAL STANDARD PROCEDURE FOR MEASURING THE AMBIENT NOISE LEVEL IN A ROOM Organization: ASA
Date: 2015-01-01
Description: The standard may also be used to obtain the NC (noise criterion) level, the RC (room criterion) level, or other sound metric applicable to steadystate sounds which can be described by one-third octave bands.
NPFC - MIL-H-87819/2 - HEADSET-ELECTRICAL, HEARING PROTECTIVE TYPE HIGH AMBIENT NOISE LEVELS, 105-125 DB M87819/2-01 Organization: NPFC
NPFC - MIL-H-87819/3 - HEADSET-NONELETRICAL, HEARING PROTECTIVE TYPE HIGH AMBIENT NOISE LEVELS, 105-125 DB M87819/3-01 Organization: NPFC
NPFC - MIL-PRF-87819/1 - HEADSET-MICROPHONE, HEARING PROTECTIVE TYPE HIGH AMBIENT NOISE LEVELS, 105-125 DB, M87819/1-01 Organization: NPFC
Date: 2015-02-23
ASA - ANSI/ASA S3.1 - AMERICAN NATIONAL STANDARD MAXIMUM PERMISSIBLE AMBIENT NOISE LEVELS FOR AUDIO METRIC TEST ROOMS Organization: ASA
NPFC - QPL-87819 - HEADSET-MICROPHONE, (HEARING PROTECTIVE TYPE, HIGH AND MODERATE AMBIENT NOISE LEVELS), GENERAL SPECIFICATION FOR Organization: NPFC
NPFC - MIL-PRF-87819/4 - HEADSET-MICROPHONE, HEARING PROTECTIVE TYPE MODERATE AMBIENT NOISE LEVELS, UP TO 105 DB, INFLIGHT AIRCREW HEADSET-MICROPHONE, M87819/4-01 Organization: NPFC
Date: 2015-02-23
NPFC - MIL-PRF-87819/5 - HEADSET-MICROPHONE, HEARING PROTECTIVE TYPE MODERATE AMBIENT NOISE LEVELS, UP TO 105 DB, ENLARGED EARCUP, INFLIGHT AIRCREW HEADSET-MICROPHONE, M87819/5-01 Organization: NPFC
Date: 2015-02-23
NPFC - MIL-PRF-87819/6 - HEADSET-MICROPHONE, DICHOTIC, HEARING PROTECTIVE TYPE, MODERATE AMBIENT NOISE LEVELS, UP TO 105 DB, ENLARGED EARCUP, INFLIGHT AIRCREW HEADSET-MICROPHONE, M87819/6-01 Organization: NPFC
Date: 2015-02-23
IECQ - QC 750102/CN 0002 - DETAIL SPECIFICATION FOR ELECTRONIC COMPONENTS BIPOLAR TRANSISTORS FOR AMBIENT-RATED, FORWARD A.G.C. LOW-NOISE, HIGH- FREQUENCY AMPLIFICATION OF TYPE 3DG79 ASSESSMENT LEVEL II Organization: IECQ
Date: 1988-01-01
BRE IP2/06 - RAIN NOISE FROM GLAZED AND LIGHTWEIGHT ROOFING - C HOPKIN Organization: BRE
Date: 2006-01-01
Description: This paper is intended to help designers of new schools to assess the likely effect of rain noise from lightweight roofs and roof elements on the indoor ambient noise levels in rooms. It contains results from measurements of the sound intensity levels caused by artificial heavy rainfall on roof glazing, polycarbonate roofing and ETFE roofing, the latter with and without rain suppressors.
NASA-LLIS-0708 - LESSONS LEARNED – PLASMA NOISE IN EMI DESIGN Organization: NASA
Date: 2000-03-16
Description: The practice is to perform an analysis early in such a program to estimate the amplitude of plasma noise induced electromagnetic interference (EMI). This may identify potential adverse effects on operational reliability.
ESDU 88023 - JET-BY-JET SHIELDING OF NOISE Organization: ESDU
Date: 2012-11-01
Description: The method takes account of the velocity and temperature of the jets, their diameters and the ratio of jet density to ambient. It considers each jet in turn as a point noise source and the other as the shielding jet and superimposes the sound fields so obtained.
JSAE - JASO T008 - MOTORCYCLES - MEASUREMENT OF NOISE EMITTED BY ACCELERATING RUN Organization: JSAE
Date: 2010-01-01
Description: The provisions of this standard are designed to reproduce the level of noise produced from major sources of noise during normal transit in urban areas.
DS/CEN/TR 16269 - AMBIENT AIR - GUIDE FOR THE MEASUREMENT OF ANIONS AND CATIONS IN PM2,5 Organization: DS
Date: 2011-11-04
Description: NOTE The detection limits described in this CEN technical report method will be limited by the noise level of the detector and the variability of the mass in laboratory blank filters rather than by the concentrations of anions and cations in ambient air.
CEN/TR 16269 - AMBIENT AIR - GUIDE FOR THE MEASUREMENT OF ANIONS AND CATIONS IN PM2,5 Organization: CEN
Date: 2011-09-01
Description: NOTE The detection limits described in this CEN technical report method will be limited by the noise level of the detector and the variability of the mass in laboratory blank filters rather than by the concentrations of anions and cations in ambient air.

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