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This Aerospace Recommended Practice (ARP) provides two methods for measuring the aircraft noise level reduction of building façades. Airports and their consultants can use either of the methods presented in this ARP to determine the eligibility of structures exposed to aircraft...
This document describes a method to calculate noise level adjustments at locations behind an airplane (described by an angular offset or directivity) at the start of takeoff roll (SOTR). This method is derived from empirical data from jet aircraft (circa 2004), most of which are...
Scope. This specification covers the requirements for headset-microphones with rigid headband. These parts meet established requirements for communications equipment used to protect against hazardous noise exposure and are approved for use in certain high and moderate ambient noise...
QUALIFIED PRODUCT LIST OF PRODUCTS QUALIFIED UNDER PERFORMANCE SPECIFICATION MIL-PRF-87819 Headset-Microphone, (Hearing Protective Type, High and Moderate Ambient Noise Levels), General Specification for This list has been prepared for use by or for the Government in the acquisition...
Headset-microphone PIN M87819/8 is a high ambient noise level headset-microphone designed for use by F-35 flight deck personnel to provide communication under the extreme noise conditions encountered in close proximity to F-35 and other fighter, transport, and tanker aircraft engines, on the flight...
Provide a description of standard test methods and analysis methods for bench test measurement of the component level EPB actuation noise in order to evaluate the noise performance of the EPB actuators.
This standard specifies requirements and procedures for the measurement of sound pressure levels in building spaces or rooms. These requirements and procedures apply ideally to measurements performed in unoccupied spaces, with normal building services and HVAC equipment operating under...
This SAE Recommended Practice establishes the test procedure, environment, and instrumentation to be used for measuring the exterior exhaust sound level for passenger cars, multipurpose vehicles, and light trucks under stationary conditions providing a continuous measure of exhaust system or...
This SAE Standard is equivalent to ISO Standard 362 - 1997 except for the differences detailed in Appendix A , and includes the modifications adopted by WP 29 in ECE R51 Revision 1 and EEC 92/97 and EEC 96/20. This document specifies an engineering method for measuring the noise emitted by...
This SAE Recommended Practice applies to commercial vehicles above 4540 kg of gross vehicle weight rating equipped with air brakes used under normal operating conditions. The procedure incorporates high and low-temperature test matrices, but does not fully account for the effects of the environment...
1.1 This practice covers the instrument set-up and operation parameters for using FT-IR spectrometers for in-service oil condition monitoring for both direct trend analysis and differential trend analysis approaches. 1.2 This practice describes how to acquire the FT-IR spectrum of an in-service oil...
Purpose. 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. Foreword. None. Applicability. For component development. Note: Nothing in the specification, however,...
