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JB/T 6331.1-1992 English PDF

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JB/T 6331.1-1992: Method for measuring noise of foundry machinery. Determination of sound power level
Status: Obsolete
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JB/T 6331.1-1992English759 Add to Cart 4 days [Need to translate] Method for measuring noise of foundry machinery. Determination of sound power level Obsolete JB/T 6331.1-1992

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Basic data

Standard ID JB/T 6331.1-1992 (JB/T6331.1-1992)
Description (Translated English) Method for measuring noise of foundry machinery. Determination of sound power level
Sector / Industry Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard J61
Word Count Estimation 19,169
Date of Issue 7/1/1992
Date of Implementation 1/1/1993
Quoted Standard GB 3102.7; GB 3241; GB 3785; GB 3947; GB 4129; JJG 176; JJG 188
Adopted Standard ISO 3744-1981, NEQ; ISO 3746, NEQ
Summary This standard specifies the next over a reflecting plane for the free field acoustic test conditions, determination of foundry machinery sound power rates. According to the acoustic test environment, the amount of need determination and measurement uncertainty requirements, divided into engineering method and simple method. This standard applies to the steady-state radiation, radiation unsteady and periodic changes Fushun casting machinery of various types of noise.

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