I read in !emc-pstc that Peter L. Tarver <[email protected]> wrote (in <[email protected]>) about 'EN60950:2000 & EN60950-1 last dates of manufacture' on Fri, 1 Nov 2002: > >A poser for those in the know. > >In EN60950:1992 and its subsequent amendments, the Forward >contained three dates: > > 1) DOP - a date of publication when each EU nation was >required to implement the new version of the standard > > 2) DOW - the last date by which previous national versions >(called "conflicting") of the standard had to be withdrawn >by each EU nation > > 3) the last date for which a product evaluated to a >previous version of the standard could be manufactured, >provided its certifications were issued before the DOW (was >typically 3-5 years) > >In looking at the Forward to EN60950:2000, the third date is >conspicuously absent. I don't have a copy of >EN60950-1:2001, but I suspect the same is true. > >I made two queries this afternoon to separate NCBs. Neither >could not point to any such specific date, but both believed >that third date might be the same as the DOW. I've asked >both for a more definitive answer by providing something in >writing that unambiguously substantiates their claims.
I've posted here about that several times. The dow IS the last date at which products conforming to the old standard may be **offered for sale by the manufacturer**, not *manufactured*. Products in the distribution chain are tolerated for about one year after the dow. The dow is normally the same as the 'date of cessation of presumption of compliance of the superseded standard' (docopocoss), although the latter is set by the Commission and could be different from the dow. > >I also want to check through the knowledge base of this >august collection of crania, in case the others fall short >of my expectations. > >Does anyone on the list have anything in writing (hearsay is >of no help) regarding the last date of manufacture for >products compliant with EN60950:1992+A1+A2+A3+A4+A11? Same >for EN60950:2000? If so, I would appreciate a copy of this >(these) document(s). > > The information is in the standards themselves; you need no other document. But it makes your brain hurt to try to decipher what the various dates of the multiple amendments actually mean. The information (of the actual docopocosses) is also in the lists of 'notified standards' available from the Commission web site. The dow for EN60950:1992 and amendments is the dow given in the 2000 edition. The dow for the 2000 edition is the one given in EN60950-1. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
