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NASA-LLIS-0083 - LESSONS LEARNED - PORTABLE PURGE UNIT (PPU) EXCEEDS RECOMMENDED NOISE LEVELS Organization: NASA
Date: 1992-05-09
Description: Reference is made to noise hazard survey accomplished by BOC industrial hygiene. The noise level closer than a perimeter of 30 feet exceeds the allowable 85.0 DBA as established by the NASA Hearing Conservation Program.
GME L-8C-5 - INTAKE SYSTEM - NOISE LEVEL MEASUREMENT OF ORIFICE NOISE AND SURFACE RADIATION - ENGLISH/GERMAN; INCLUDES APPENDIX A; THIS SPECIFICATION MAY BE APPLIED ONLY FOR CURRENT PROJECTS INCL. GLOBAL EPSILON E (37##). IT IS SUPERCEDED FOR ALL FUTURE PROJECTS AND REPLACED BY GMW14225 AND GMW14217. Organization: GME
Date: 2007-05-01
Description: The purpose of this Test Procedure is the development testing of the noise level generated by the engine intake system and the surface radiation, including validation.
ISO DIS 1996-2 - ACOUSTICS - DESCRIPTION, MEASUREMENT AND ASSESSMENT OF ENVIRONMENTAL NOISE - PART 2: DETERMINATION OF ENVIRONMENTAL NOISE LEVELS Organization: ISO
Date: 2015-06-02
Description: This part of ISO 1996 describes how sound pressure levels intended as a basis for assessing environmental noise can be determined by direct measurement and by extrapolation of measurement results by means of calculation.
DSF/ISO/DIS 1996-2 - ACOUSTICS - DESCRIPTION, MEASUREMENT AND ASSESSMENT OF ENVIRONMENTAL NOISE - PART 2: DETERMINATION OF ENVIRONMENTAL NOISE LEVELS Organization: DS
Description: This part of ISO 1996 describes how sound pressure levels intended as a basis for assessing environmental noise can be determined by direct measurement and by extrapolation of measurement results by means of calculation.
DS/ISO 1996-2 - ACOUSTICS - DESCRIPTION, MEASUREMENT AND ASSESSMENT OF ENVIRONMENTAL NOISE - PART 2: DETERMINATION OF ENVIRONMENTAL NOISE LEVELS Organization: DS
Date: 2007-06-20
Description: This part of ISO 1996 describes how sound pressure levels can be determined by direct measurement, by extrapolation of measurement results by means of calculation or exclusively by calculation, intended as a basis for assessing environmental noise. Recommendations are given regarding preferable conditions for measurement or calculation to be applied in cases where other regulations do not apply.
DS/ISO 4412-1 - HYDRAULIC FLUID POWER - TEST CODE FOR THE DETERMINATION OF A IRBORNE NOISE LEVELS - PART 1: PUMPS Organization: DS
Date: 1989-01-12
Description: This International Standard establishes a test code describing p rocedures based on ISO 2204 for the determination of the sound p ower levels of a hydraulic fluid power pump, under controlled co nditions of installation and operation, suitable for providing a basis for comparing the noise levels of pumps in terms of: A-wei ghted sound power level; octave band sound power levels. - From these sound power levels, reference sound pressure levels may be calculated for reporting purposes (see clause 13).
DS/ISO 4412-2 - HYDRAULIC FLUID POWER - TEST CODE FOR THE DETERMINATION OF A IRBORNE NOISE LEVELS - PART 2: MOTORS Organization: DS
Date: 1989-01-12
Description: This part of ISO 4412 specifies a test code describing procedure s based on ISO 2204 for the determination of the sound power lev els of a hydraulic fluid power motor under controlled conditions of installation and operation, suitable for providing a basis f or comparing the noise levels of motors in terms of: A-weighted sound power level; octave band sound power levels. - From these sound power levels, reference sound pressure levels may be calcu lated for reporting purposes (see clause 13).
ASA - S3.1 - AMERICAN NATIONAL STANDARD MAXIMUM PERMISSIBLE AMBIENT NOISE LEVELS FOR AUDIOMETRIC TEST ROOMS Organization: ASA
Date: 1999-08-03
Description: However, if the ambient noise level is excessively high, some hearing threshold levels measured in that environment will be inaccurate.
NASA-CR-114760 - NOISE LEVELS OF OPERATIONAL HELICOPTERS OF THE OH-6 TYPE DESIGNED TO MEET THE LOH MISSION Organization: NASA
Date: 1973-01-01
Description: However, linear OASPL is believed to be useful as a relative means of comparing noise level variations of individual components in similar helicopters with reasonably modest design changes.
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 - 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.
ASHRAE - OR-10-058 - RELATIONSHIP BETWEEN HVAC AIRFLOW RATES AND NOISE LEVELS, AND NOISE CONTROL IN A MECHANICALLY-VENTILATED UNIVERSITY BUILDING Organization: ASHRAE
Date: 2010-01-01
Description: INTRODUCTION A study of the classrooms in a university building was undertaken, with the goal of investigating the acceptability of, and the relationship between, airflow rates and noise levels from the heating, ventilation and air-conditioning (HVAC) system, and how the noise can be controlled.
NPFC - DI-H-7131 - NOISE LEVEL ASSESSMENT REPORT (HELICOPTERS) Organization: NPFC
Date: 1985-01-18
IMO I814E - NOISE LEVELS ON BOARD SHIPS Organization: IMO
Date: 1982-01-01
DIN 45405 - NOISE LEVEL MEASUREMENT IN SOUND SYSTEMS Organization: DIN
Date: 1983-11-01
SAE - ARP865B - DIFINITIONS AND PROCEDURES FOR COMPUTING/NOISE LEVEL Organization: SAE
Date: 1991-04-01
GOST 21342.19 - RESISTORS. METHODS OF MEASURING NOISE LEVEL Organization: GOST
Date: 1978-02-21
SAE ARP1071 - DEFINITIONS AND PROCEDURES/NOISE LEVEL AIRCRAFT Organization: SAE
Date: 1973-10-01
NATO - STANAG 1186 - GUIDELINES GOVERNING NOISE LEVELS IN SHIPS - ED 1 AMD 5 Organization: NATO
Date: 1976-01-01
NPFC - DI-H-21437 - CREW POSITION ACOUSTICAL NOISE LEVEL PREDICTIONS Organization: NPFC

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