Abstract
Ecma International is an organization that facilitates the timely creation of a wide range of standards for Information Technology (IT) products, including acoustics standards. Ecma standards have a history of short development time and revision. Each Ecma acoustics standard will be discussed demonstrating how it promotes the analysis and control of IT product noise. ECMA-74 is the test code for sound emissions from IT equipment. Annex C includes uniform operation and installation conditions for most types of IT equipment and is now referenced by the latest versions of ISO 7779:2010 and ANSI S12.10. This reference by other standards ensures that there is a world-wide consistency on mounting and operating conditions and that these procedures are up to date. The latest edition of ECMA-109 on noise declarations for customers presents revised guidelines to manufacturers on making declarations when testing a small sample size. ECMA-108 presents methods for determining high frequency sound power and has been submitted to ISO for revision to ISO 9295. ECMA TR/275 on measuring fan structure-borne noise was the basis of ANSI S12.11/Part2 (ISO 10302/Part 2). ECMA TR/99 covers constant sound power fan curves to assist product developers to select low-noise operation of fans at realistic operating points.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
