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Database: 189759 (26 Oct 2025)
JB/T 6972-1993 English PDF
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JB/T 6972-1993
: Measurement method for microporous exhaust muffler
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JB/T 6972-1993
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Measurement method for microporous exhaust muffler
JB/T 6972-1993
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Basic data
Standard ID
JB/T 6972-1993 (JB/T6972-1993)
Description (Translated English)
Measurement method for microporous exhaust muffler
Sector / Industry
Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard
J93
Word Count Estimation
5,573
Date of Issue
7/27/1993
Date of Implementation
7/1/1994
Quoted Standard
GB 3241; GB 3785; GB 3947; GB 4759; GB 4760; JJG 176,
Summary
This standard specifies the performance of a dedicated micro exhaust elimination anechoic chamber, reverberation chamber, the job site measurement methods. Measurement parameters specified in this standard are mainly dedicated micro exhaust eliminate the A, C-weighted insertion loss and loss rate of gas flow. This standard applies to metallurgy, ceramics, plastics or small pores muffler other materials. This standard does not apply to piping exhaust muffler performance measurement.
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