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ARP876 is intended to provide specific recommended procedures for the prediction of gas turbine jet exhaust system noise sources. Procedures are issued as separate sections, to allow for future updating as additional methods, consistent with state-of-the-art, become available.
This document specifies two tyres intended to serve as reference tyres when using the close-proximity (CPX) method specified in ISO 11819-2. The CPX method is a method for evaluating different road surfaces with respect to their influence on traffic noise, under conditions when tyre/road...
1.1 This guide provides specific requirements to statistically evaluate measurand alarm thresholds, which are called alarm limits, as they are applied to data collected from in-service oil analysis. These alarm limits are typically used for condition monitoring to produce severity indications...
This European Standard is applicable to active noise reduction (ANR) earmuffs. It specifies requirements on construction, design, performance, marking and user information related to the inclusion of the active noise reduction facility.
5.1 Use of this guide is intended to provide information on electrochemical noise to monitor corrosion on a continuous basis. 5.2 This guide is intended for conducting electrochemical noise measurements, both in the laboratory and in-service environments (36). 5.3 This technique is...
This test procedure outlines the necessary test equipment (test fixture, dynamometer, data acquisition system, etc.) and test sequence required to test for low-frequency brake noise (200 Hz to 1.25 kHz) on a brake noise dynamometer. It is intended to complement SAE J2521, which...
1.1 This standard practice describes procedures for evaluating indoor air quality (IAQ) concerns in residential buildings. 1.2 The practice primarily addresses IAQ concerns encountered in single-family detached and attached (for example, townhouse or duplex design) residential buildings. Limited...
This document describes a test method for measuring a quantity representative of the intrinsic characteristics of airborne sound insulation for traffic noise reducing devices: the sound insulation index. The test method is intended for the following applications: - determination of the...
This document specifies two tyres intended to serve as reference tyres when using the close-proximity (CPX) method specified in ISO 11819-2. The CPX method is a method for evaluating different road surfaces with respect to their influence on traffic noise, under conditions when tyre/road...
The TSB-88 Series The TSB-88 series of bulletins gives guidance on the following areas: • Establishment of standardized methodology for modeling and simulating either narrowband/bandwidth
2.1 Fig. 1 provides symbols for strainers, separators, and filters. 2.2 Fig. 2 provides symbols for valves. Valves are categorized under the following headings: globe, angle, check, ball, butterfly, gate, relief, manifolds, control, noise control, and miscellaneous. 2.3 Fig. 3 provides...
This document specifies a noise test code for determining, efficiently and under standardized conditions, the common noise emission characteristics of portable, hand-held, combustion engine powered forest and garden machines, and specific requirements for chain-saws, brush-cutters,...
This SAE Standard establishes the test procedure, environment, and instrumentation for determining the sound levels of snowmobiles in the stationary test mode. This test method is intended to provide an accurate measurement of exhaust and other engine noise and may be used to evaluate new...
This document specifies a noise test code for determining, efficiently and under standardized conditions, the common noise emission characteristics of portable, hand-held, combustion engine powered forest and garden machines, and specific requirements for chain-saws, brush-cutters,...
This Ecma Standard applies to information technology and telecommunications equipment. This Ecma Standard specifies: a) for a batch of equipment, the method for determining the following values: • the declared mean A-weighted sound power level, LWA,m; • the declared mean A-weighted emission sound...
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...
This document outlines strategies to be used in dealing with noise problems in existing and planned workplaces by describing basic concepts in noise control (noise reduction, noise emission, noise immission and noise exposure). It is applicable to all types...
5.1 For matters relating to lot acceptance of commercial shipments and conformity to specification or other standard, refer to Section 13 of this test method. 5.2 This test method is useful in the selection and design validation of permeable, uncoatable fabrics used in inflatable restraint cushions...
This part of IEC 60704 applies to electric appliances (including their accessories or components) for household and similar use, supplied from mains or from batteries. By "similar use" is understood the use in conditions similar to those found in households, for example in inns, coffee houses, tea...
