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发表于 2005-11-28 10:55
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回复:(elliott)[转帖]声学标准汇总
<P><B><FONT size=2>Product Test Codes</FONT></B><BR><FONT size=2>Product Test Code standards specify the methods to be utilized for the measurement of the noise emissions of a specific class of equipment. Most product test codes rely on basic underlying standards for the measurement of sound pressure and sound power levels. The test code specifies operational modes and test conditions specific to the class of equipment.</FONT><BR><BR><FONT size=2>The following standards provide rules and guidelines for drafting product test codes and for utilizing the underlying sound pressure level and sound power level measurement standards in product test codes.</FONT><BR></P>
<UL>
<LI type=disc><FONT size=2>ANSI S12.30-1990 (R1997) Sound Power Standards and the Preparation of Noise Test Codes, Guidelines for the Use of</FONT>
<LI type=disc><FONT size=2>ISO 3740: 1980 Acoustics -- Determination of sound power levels of noise sources -- Guidelines for the use of basic standards and for the preparation of noise test codes</FONT>
<LI type=disc><FONT size=2>ISO 12001: 1996 Acoustics -- Noise emitted by machinery and equipment -- Rules for the drafting and presentation of a noise test code</FONT>
<LI type=disc><FONT size=2>ANSI S12.10-1985 (R1997) Methods for the Measurement and Designation of Noise Emitted by Computer and Business Equipment </FONT></LI></UL>
<P><BR><FONT size=2>The following are examples of test codes for various classes of equipment.</FONT><BR></P>
<UL>
<LI type=disc><FONT size=2>ECMA-74 Measurement of Airborne Noise Emitted by Information Technology and Telecommunications Equipment, 6th edition (December 1999) </FONT>
<LI type=disc><FONT size=2>ECMA-108 Measurement of High-Frequency Noise emitted by Information Technology and Telecommunications Equipment, 3rd edition (December 1996) </FONT>
<LI type=disc><FONT size=2>ISO 7779: 1999 Acoustics -- Measurement of airborne noise emitted by information technology and telecommunications equipment</FONT>
<LI type=disc><FONT size=2>ISO 9295: 1988 Acoustics -- Measurement of high- frequency noise emitted by computer and business equipment</FONT>
<LI type=disc><FONT size=2>ISO 1680: 1999 Acoustics -- Test code for the measurement of airborne noise emitted by rotating electrical machines</FONT>
<LI type=disc><FONT size=2>ISO 10302: 1996 Acoustics -- Method for the measurement of airborne noise emitted by small air- moving devices</FONT>
<LI type=disc><FONT size=2>ISO 11094: 1991 Acoustics -- Test code for the measurement of airborne noise emitted by power lawn mowers, lawn tractors, lawn and garden tractors, professional mowers, and lawn and garden tractors with mowing attachments</FONT></LI></UL>
<P><BR><B><FONT size=2>Product Noise Declaration</FONT></B> </P>
<UL>
<LI type=disc><FONT size=2>ECMA-109 Declared Noise Emission Values of Information Technology and Telecommunications Equipment, 4th edition (December 1996) </FONT>
<LI type=disc><FONT size=2>ISO 9296: 1988 Acoustics -- Declared noise emission values of computer and business equipment</FONT>
<LI type=disc><FONT size=2>ISO 7574- 1: 1985 Acoustics -- Statistical methods for determining and verifying stated noise emission values of machinery and equipment -- Part 1: General considerations and definitions</FONT>
<LI type=disc><FONT size=2>ISO 7574- 2: 1985 Acoustics -- Statistical methods for determining and verifying stated noise emission values of machinery and equipment -- Part 2: Methods for stated values for individual machines</FONT>
<LI type=disc><FONT size=2>ISO 7574- 3: 1985 Acoustics -- Statistical methods for determining and verifying stated noise emission values of machinery and equipment -- Part 3: Simple (transition) method for stated values for batches of machines</FONT>
<LI type=disc><FONT size=2>ISO 7574- 4: 1985 Acoustics -- Statistical methods for determining and verifying stated noise emission values of machinery and equipment -- Part 4: Methods for stated values for batches of machines</FONT></LI></UL>
<P><BR><FONT size=2>A note about ECMA, ISO and ANSI test code standards and declaration standards for ITTE equipment – Many of the ITTE test codes are published by ECMA, ISO and ANSI. The current process is that new or revised standards are developed as a part of the ECMA process, as ECMA standards can be adopted quickly. The ECMA standards are then submitted to ISO for approval as an ISO standard and then submitted to ANSI for adoption as a consensus international standard. When the entire process is completed, the ECMA, ISO and ANSI standards become equivalent. </FONT><BR><BR><BR><BR><B>Additional References</B> </P>
<P><B><FONT size=2>Related NI Products: </FONT></B><BR><FONT size=2>
<LI><a href="http://digital.ni.com/worldwide/bwcontent.nsf/web/all/414E22F8A2C378EC8625694D0052B5C4" target="_blank" >Sound Power System</A><BR>
<LI><a href="http://sine.ni.com/apps/we/nioc.vp?lang=US&pc=mn&cid=3122" target="_blank" >Sound and Vibration Toolset</A></FONT><BR><BR><!---->
<P><STRONG>Information Contributed By:</STRONG> David A. Nelson, P.E., INCE Bd. Cert. <a href="http://www.nelsonacoustical.com/" target="_blank" ><B>Nelson Acoustical Engineering, Inc</B></A>. specializes in noise and vibration control, sound quality, laboratory facilities and test control systems, and instruction related to plants, buildings, laboratories, products, and machinery.</P></LI> |
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