Acoustics - ISO PDF Download

AS NZS 1055:2018 pdf free

AS NZS 1055:2018 pdf free.Acoustics—Description and measurement of environmental noise. 5.2 Measurement of time average A-weighted sound pressure level (Lcq.i) The instrumentation to measure LACq.T shall include but is not limited to— (a) integrating-averaging sound level meter set to frequency-weighting ‘A’; or (b) data analyser for sampling the running value of A-weighted sound pressure level. 5.3 Measurement of percent exceedance...

09-07

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AS NZS 2107:2016 pdf free – Acoustics—Recommended design sound levels and reverberation times for building interiors

AS NZS 2107:2016 pdf free.Acoustics—Recommended design sound levels and reverberation times for building interiors. 4 DEFINITIONS For the purpose of this Standard, the definitions in IEC 60050-801 and those below apply. 4.1 A-weighted sound pressure level (L.) The level of the frequency A-weighted sound pressure, as determined by an integrating- averaging sound level meter complying with AS IEC 61672.1. 4.2...

09-04

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ANSI S12.10:2002 pdf free

ANSI S12.10:2002 pdf free.Acoustics一Measurement of airborne noise emitted by information technology and telecommunications equipment. 5.1.2 Floor-standing equipment 5.1.2.1 Requirements for reverberation rooms Floor-standing equipment shall be located at least 1,5 m from any wall of the room and no major surfaces shall be parallel to a wall of the reverberation room. 5.1.2.2 Requirements for hemi-anechoic rooms Floor-standing equipment shall be...

09-03

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AS 1055:2018 pdf free

AS 1055:2018 pdf free.Acoustics—Description and measurement of environmental noise. 6.2 Measurement positions 6.2.1 General The choice of the actual measurement positions depends on the purpose of the measurements, as specified in other parts of this Standard, or in other applicable Standards or as specified by the relevant regulatory authority. The microphone shall be oriented so that it is most uniformly...

09-02

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BS EN ISO 80000-8:2020 pdf free

BS EN ISO 80000-8:2020 pdf free.Quantities and units,Acoustics. BS EN ISO 80000-8 This document gives names, symbols, definitions and units for quantities of acoustics. W here appropriate, conversion factors are also given. 2 Normative references There are no normative references in this document. 3 Terms and definitions For the purposes of this document, the fllowing terms and definitions apply. Names,...

05-09

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AS 4241-1994 pdf free

AS 4241-1994 pdf free.Acoustics - Instruments for the measurement of sound intensity - Measurement with pairs of pressure sensing microphones. AS 4241 specifies the requirements for sound intensity instruments, comprising sound intensity probes and processors, which detect sound intensity by pairs of spatially separated pressure sensing microphones. These instruments, and others employing ditferent detection methods, are still the subject of...

03-29

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