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Latest News in Engineering, Technology and Testing

New EN 55022:2006 Requirements slated to go into effect

Manufacturers of Information Technology Equipment (ITE) intended for sale in the European Union should take note of some important changes that are slated to go into effect with regard to their EMC testing requirements under emissions standard EN 55022:2006.

In November 2008 the European Union’s Official Journal (OJ) published lists of standards for the Electromagnetic Compatibility (EMC) Directive and Radio and Telecommunications Terminal Equipment Directive (R&TTED). Both lists include references to EN 55022:2006 and its amendment A1, released in 2007.

EN 55022:2006 will supersede EN 55022;1998 and become the requirement for Information Technology Equipment (ITE) sold into the European Union after October 1st 20091 , with the requirements of Amendment A1:2007 coming into force one year later on October 1st 2010. What are the differences between the 1998 and 2006 versions of the standard and what new requirements will be introduced by A1:2007? Let’s begin by reviewing the history of CISPR 22 from 1997 onwards. International Standard CISPR 22 is the basis for not only EN 55022 but also for many of the other national versions of standards for ITE.

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Elliott Laboratories is currently equipped to conduct the EU free space testing above 1 GHz per EN55022:2006+ A1 and/or CISPR 22:2005 + A1 in all chambers at our Fremont facility. For more information about how this change affects your products or for a price quote to test your product, please contact us at info@elliottlabs.com or call at 408-245-7800.

What Web Browsers Should I Test With?

Web BrowsersIn a previous post, we discussed the importance of testing your website with older web browsers. MaximumPC has a very informative article on the latest browsers of today and tomorrow (for Windows primarily) which makes a good starting place if you want to be comprehensive in the compatibility testing you perform. Here’s a summary of the list, along with the January 2009 stats for each from W3Schools:

Stable/Current Releases

Upcoming/Beta Releases

And don’t forget, you can use BrowserShots to generate quick screenshots of your website for review. All of the above browsers, except for Opera 10, are among the browsers that you can get screenshots of.

Website Compatibility Testing

websitelogosIf you’re putting up a new website, it’s common practice to test your website with older versions of popular web browsers and your “required software” (e.g., Flash, Java, etc.) to make sure it is backward compatible. Even if your website is fully compliant to the latest W3C and CSS standards, it still may look very different in different browser/operating system configurations. For example, if you’ve just put up a new website, you may want to try it out using an old version of Internet Explorer or Firefox, maybe Flash 7 or 8, or an old version of Java. Only one problem – where do you find old versions of the software to install?

If you’re looking for older versions of web browser, try the Evolt Browser Archive. Started in 1999, the Evolt Archive has a large variety of older browsers (including little known ones like Cyberdog and iCab) and older versions of many popular browsers (including Internet Explorer all the way back to 1.0).

You can also find older Windows versions of web browsers and other software (including the Microsoft Java VM and Adobe Flash) at OldVersions.com. If you’re trying to find out what most people are using today, you can visit the Browser Statistics from W3C for the latest browsers, operating systems, display depths, etc.

And rather than trashing your current desktop installation of MSIE or Firefox, grab a copy of VirtualBox and create your own virtual machines to test different web browsers.