RE: 80/80 rule for euro compliance?
The 80/80 rule for compliance has some more implications then one might think. If the mean emission level of your products is f.a. at 100 Mhz on 29 dbuV/m and the standard deviation in your products is 5 dB, then this implicates that more then 20% of the production is exceeding the 30 dBuV/m limit. This may happen easily if the standard deviation is calculated from a few samples. If a series of 6 contains of the following values: 29,28,29,28,22,29 , then the 80/80 rule would FAIL ! Using the following series: 29,28,29,28,27,29 , the 80/80 rule would PASS As you may easily see, a full compliant series close to the limit may fail the 80/80 rule if extrapolated to a full production run. I have available for those interested a spread sheet for calculations of the 80 80 rule, i once downloaded from a site, upon instigation of one of this list's members. I do not remember who, how and where, but the author deserves the credit , not me ! May he (she) rise ! Regards, Gert Gremmen, (Ing) ce-test, qualified testing === Web presence http://www.cetest.nl CE-shop http://www.cetest.nl/ce_shop.htm /-/ Compliance testing is our core business /-/ === -Original Message- From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of geor...@lexmark.com Sent: Tuesday, November 20, 2001 2:53 PM To: Gregg Kervill Cc: emc-p...@ieee.org Subject: RE: 80/80 rule for euro compliance? Actually, Vilfredo Pareto (1848-1923) was an Italian economist. He observed that 80% of the economy was driven by 20% of the consumers, i.e. 20% of the customers account for 80% of the turnover. Two decades ago I was involved in an effort to create a data bank of IBM typewriter service customers. Some customers (e.g. banks) owned many units, and placed many calls for service, while fewer calls came from individuals owning one machine. It became evident that 20% of the customers accounted for 80% of the service calls. The data base was set up to maintain the phone numbers of only the most active 20%, as this required 80% less computer space. When a call came in, the customer was asked for their phone number. If it was one of the 20%, the operator then saw a full screen of data as to the name, address and service history of the customer, saving time on the phone keying data. It would probably be correct to say that 80% of the work is done by 20% of the workers; however, it would still take 100% of effort to complete 100% of the work. George Alspaugh Gregg Kervill gkervill%eu-link@interlock.lexmark.com on 11/14/2001 08:03:00 AM Please respond to Gregg Kervill gkervill%eu-link@interlock.lexmark.com To: 'Doug McKean' dmckean%corp.auspex@interlock.lexmark.com, 'EMC-PSTC Discussion Group' emc-pstc%majordomo.ieee@interlock.lexmark.com cc:(bcc: George Alspaugh/Lex/Lexmark) Subject: RE: 80/80 rule for euro compliance? Liars, Damn Liars and . I sounds like the Pareto's law from management statistics You can do 80% of the work with 20% of the effort... I think someone requoted it once as You an fool some of the people all of the time. Cynically yours Gregg --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. attachment: Gert Gremmen.vcf
RE: 80/80 rule for euro compliance?
Actually, Vilfredo Pareto (1848-1923) was an Italian economist. He observed that 80% of the economy was driven by 20% of the consumers, i.e. 20% of the customers account for 80% of the turnover. Two decades ago I was involved in an effort to create a data bank of IBM typewriter service customers. Some customers (e.g. banks) owned many units, and placed many calls for service, while fewer calls came from individuals owning one machine. It became evident that 20% of the customers accounted for 80% of the service calls. The data base was set up to maintain the phone numbers of only the most active 20%, as this required 80% less computer space. When a call came in, the customer was asked for their phone number. If it was one of the 20%, the operator then saw a full screen of data as to the name, address and service history of the customer, saving time on the phone keying data. It would probably be correct to say that 80% of the work is done by 20% of the workers; however, it would still take 100% of effort to complete 100% of the work. George Alspaugh Gregg Kervill gkervill%eu-link@interlock.lexmark.com on 11/14/2001 08:03:00 AM Please respond to Gregg Kervill gkervill%eu-link@interlock.lexmark.com To: 'Doug McKean' dmckean%corp.auspex@interlock.lexmark.com, 'EMC-PSTC Discussion Group' emc-pstc%majordomo.ieee@interlock.lexmark.com cc:(bcc: George Alspaugh/Lex/Lexmark) Subject: RE: 80/80 rule for euro compliance? Liars, Damn Liars and . I sounds like the Pareto's law from management statistics You can do 80% of the work with 20% of the effort... I think someone requoted it once as You an fool some of the people all of the time. Cynically yours Gregg --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: 80/80 rule for euro compliance?
Liars, Damn Liars and . I sounds like the Pareto's law from management statistics You can do 80% of the work with 20% of the effort... I think someone requoted it once as You an fool some of the people all of the time. Cynically yours Gregg --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: 80/80 rule for euro compliance?
I read in !emc-pstc that John Shinn john.sh...@sanmina.com wrote (in 004301c16d2f$1286d000$0b3d1...@hadco.comsanmina.com) about '80/80 rule for euro compliance?', on Wed, 14 Nov 2001: OK - Lets settle if for all of you young folk. The 80/80 rule originated in VDE 0871/6.78, section 4.1.4. I doubt that. It has been in CISPR documents (but not well-known ones) for a very long time. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Eat mink and be dreary! --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: 80/80 rule for euro compliance?
OK - Lets settle if for all of you young folk. The 80/80 rule originated in VDE 0871/6.78, section 4.1.4. Regards, John Shinn, P.E. Manager, Lab. Operations Sanmina -Original Message- From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Lou Guerin Sent: Tuesday, November 13, 2001 8:45 AM To: 'Chris Maxwell'; David Heald; emc-p...@majordomo.ieee.org Subject: RE: 80/80 rule for euro compliance? Chris, David, I just checked CISPR 22:1997 and this shows up in Section 7.1.2, they go into quite a bit of detail. Regards, Lou Guerin Littlefeet, Inc. www.littlefeet-inc.com -Original Message- From: Chris Maxwell [mailto:chris.maxw...@nettest.com] Sent: Tuesday, November 13, 2001 5:21 AM To: David Heald; emc-p...@majordomo.ieee.org Subject:RE: 80/80 rule for euro compliance? I have seen this in Section 6 of EN 55011:1990 Section 8 of EN 55022:1995 I'm not sure if there are any plans to remove these references from newer versions of these standards. Best regards, Chris -Original Message- From: David Heald [SMTP:davehe...@mediaone.net] Sent: Monday, November 12, 2001 3:59 PM To: emc-p...@majordomo.ieee.org Subject: 80/80 rule for euro compliance? Greetings all, I remember hearing somewhere ( it seems that I found the answer somewhere but I can't remember) that there is a stipulation for European compliance that one should have 80% certainty that 80% of one's products are compliant. I have no idea where this idea originally came from or what standards it may apply to. Can anyone out there help me out? Dave --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: 80/80 rule for euro compliance?
I read in !emc-pstc that Doug McKean dmck...@corp.auspex.com wrote (in 007501c16cba$d2481220$3e3e3...@corp.auspex.com) about '80/80 rule for euro compliance?', on Tue, 13 Nov 2001: I have never liked the 80-80 Rule as liberal as some may think it is. I've even toyed with the idea of writing a paper about it, but I think I'd go to sleep writing it, let alone presenting it. If you take the basic premise statistically and work out the numbers yourself, you will surprised at the results. Say you have a given a total population of 100 products. In that total population, you expect 20 products to fail. Now, you take 5 samples from that population and calculate the probability of failure. The chances of 1 product failing in the 5 samples drawn is 42%. The probability of 2 products failing from 5 samples in the above example is 21%. IOW, you have a 1 in 5 chance of failing the 80-80 Rule by following it. That's bad. And if your company is into the practice of shipping relatively small amounts of product, that can be bad also. This is what happens if you apply the 80/80 rule to small numbers of product. It's really applicable only to high-volume production (mostly consumer) products, where some statistical criterion has to be set to eliminate the need for 100% testing. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Eat mink and be dreary! --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: 80/80 rule for euro compliance?
I have never liked the 80-80 Rule as liberal as some may think it is. I've even toyed with the idea of writing a paper about it, but I think I'd go to sleep writing it, let alone presenting it. If you take the basic premise statistically and work out the numbers yourself, you will surprised at the results. Say you have a given a total population of 100 products. In that total population, you expect 20 products to fail. Now, you take 5 samples from that population and calculate the probability of failure. The chances of 1 product failing in the 5 samples drawn is 42%. The probability of 2 products failing from 5 samples in the above example is 21%. IOW, you have a 1 in 5 chance of failing the 80-80 Rule by following it. That's bad. And if your company is into the practice of shipping relatively small amounts of product, that can be bad also. - Doug McKean --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: 80/80 rule for euro compliance?
I have seen this in Section 6 of EN 55011:1990 Section 8 of EN 55022:1995 I'm not sure if there are any plans to remove these references from newer versions of these standards. Best regards, Chris -Original Message- From: David Heald [SMTP:davehe...@mediaone.net] Sent: Monday, November 12, 2001 3:59 PM To: emc-p...@majordomo.ieee.org Subject: 80/80 rule for euro compliance? Greetings all, I remember hearing somewhere ( it seems that I found the answer somewhere but I can't remember) that there is a stipulation for European compliance that one should have 80% certainty that 80% of one's products are compliant. I have no idea where this idea originally came from or what standards it may apply to. Can anyone out there help me out? Dave --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: 80/80 rule for euro compliance?
I read in !emc-pstc that Dan Irish - Sun BOS Hardware dan.ir...@sun.com wrote (in 2000.RAA05232@st- ides.East.Sun.COM) about '80/80 rule for euro compliance?', on Mon, 12 Nov 2001: As I recall, this used to be in CISPR16 ...Radio Interference Measuring Apparatus and Methods, section 9. In later versions of CISPR16, this requirement was mysteriously Not mysteriously, but not everyone in the world was told about it; that didn't seem necessary. (;-) deleted from CISPR16, and section 9 became Reserved for future use. I have the old version of CISPR16 buried in my paper files somewhere. CISPR 16 is a Basic Standard, covering methods of measurement and other product-independent matters. It is now in three Parts, CISPR16-1, -2 and -3. The subject is now dealt with in much greater detail in CISPR16-3. For ITE, CISPR16 was obsoleted by CISPR22. Not at all. CISPR 22 is a Product Family Standard, that refers to CISPR16 Parts where necessary. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Eat mink and be dreary! --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: 80/80 rule for euro compliance?
I read in !emc-pstc that David Heald davehe...@mediaone.net wrote (in 3bf037f8.c93b8...@mediaone.net) about '80/80 rule for euro compliance?', on Mon, 12 Nov 2001: I remember hearing somewhere ( it seems that I found the answer somewhere but I can't remember) that there is a stipulation for European compliance that one should have 80% certainty that 80% of one's products are compliant. I have no idea where this idea originally came from or what standards it may apply to. Can anyone out there help me out? It's not peculiar to Europe, it's in many CISPR *international* standards, and thus appears in the corresponding (but not necessarily identical) EN 550xx series of European standards. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Eat mink and be dreary! --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: 80/80 rule for euro compliance?
It is implied by the statistical analysis of a sample population during formal conformity assessment. Reference EN 55022:1998 Clause 7 (7.2.3) Regards, JOHN E. STUCKEY EMC Engineer NCT EMC 002047 Micron Technology, Inc. Quality and Reliability Assurance EMC Group M/S 941 3176 S. Denver Way Boise, Idaho 83705 PH: (208) 363.5313 FX: (208) 333.7302 jestuc...@micron.com -Original Message- From: Dan Irish - Sun BOS Hardware [mailto:dan.ir...@sun.com] Sent: Monday, November 12, 2001 15:24 To: emc-p...@majordomo.ieee.org Subject: Re: 80/80 rule for euro compliance? Dave, As I recall, this used to be in CISPR16 ...Radio Interference Measuring Apparatus and Methods, section 9. In later versions of CISPR16, this requirement was mysteriously deleted from CISPR16, and section 9 became Reserved for future use. I have the old version of CISPR16 buried in my paper files somewhere. For ITE, CISPR16 was obsoleted by CISPR22. The VCCI audit requirements per V-3/2000.04 were taken almost verbatim from this. Dan Date: Mon, 12 Nov 2001 15:58:32 -0500 From: David Heald davehe...@mediaone.net X-Accept-Language: en MIME-Version: 1.0 To: emc-p...@majordomo.ieee.org emc-p...@majordomo.ieee.org Subject: 80/80 rule for euro compliance? Content-Transfer-Encoding: 7bit X-Resent-To: Multiple Recipients emc-p...@majordomo.ieee.org X-Listname: emc-pstc X-Info: Help requests to emc-pstc-requ...@majordomo.ieee.org X-Info: [Un]Subscribe requests to majord...@majordomo.ieee.org X-Moderator-Address: emc-pstc-appro...@majordomo.ieee.org Greetings all, I remember hearing somewhere ( it seems that I found the answer somewhere but I can't remember) that there is a stipulation for European compliance that one should have 80% certainty that 80% of one's products are compliant. I have no idea where this idea originally came from or what standards it may apply to. Can anyone out there help me out? Dave --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: 80/80 rule for euro compliance?
Hi All It is in CISPR 16-3 2000. Also in Goedbloed's EMC textbook (don't have bibliog. info handy), and Dvorak's 1981 IEEE EMC Symp paper. Subj:Re: 80/80 rule for euro compliance? List-Post: emc-pstc@listserv.ieee.org Date: 11/12/2001 5:29:24 PM Eastern Standard Time From: dan.ir...@sun.com (Dan Irish - Sun BOS Hardware) To: emc-p...@majordomo.ieee.org Dave, As I recall, this used to be in CISPR16 ...Radio Interference Measuring Apparatus and Methods, section 9. In later versions of CISPR16, this requirement was mysteriously deleted from CISPR16, and section 9 became Reserved for future use. I have the old version of CISPR16 buried in my paper files somewhere. For ITE, CISPR16 was obsoleted by CISPR22. The VCCI audit requirements per V-3/2000.04 were taken almost verbatim from this. Dan Date: Mon, 12 Nov 2001 15:58:32 -0500 From: David Heald davehe...@mediaone.net To: emc-p...@majordomo.ieee.org emc-p...@majordomo.ieee.org Subject: 80/80 rule for euro compliance? Greetings all, I remember hearing somewhere ( it seems that I found the answer somewhere but I can't remember) that there is a stipulation for European compliance that one should have 80% certainty that 80% of one's products are compliant. I have no idea where this idea originally came from or what standards it may apply to. Can anyone out there help me out? Dave --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: 80/80 rule for euro compliance?
Dave, As I recall, this used to be in CISPR16 ...Radio Interference Measuring Apparatus and Methods, section 9. In later versions of CISPR16, this requirement was mysteriously deleted from CISPR16, and section 9 became Reserved for future use. I have the old version of CISPR16 buried in my paper files somewhere. For ITE, CISPR16 was obsoleted by CISPR22. The VCCI audit requirements per V-3/2000.04 were taken almost verbatim from this. Dan Date: Mon, 12 Nov 2001 15:58:32 -0500 From: David Heald davehe...@mediaone.net X-Accept-Language: en MIME-Version: 1.0 To: emc-p...@majordomo.ieee.org emc-p...@majordomo.ieee.org Subject: 80/80 rule for euro compliance? Content-Transfer-Encoding: 7bit X-Resent-To: Multiple Recipients emc-p...@majordomo.ieee.org X-Listname: emc-pstc X-Info: Help requests to emc-pstc-requ...@majordomo.ieee.org X-Info: [Un]Subscribe requests to majord...@majordomo.ieee.org X-Moderator-Address: emc-pstc-appro...@majordomo.ieee.org Greetings all, I remember hearing somewhere ( it seems that I found the answer somewhere but I can't remember) that there is a stipulation for European compliance that one should have 80% certainty that 80% of one's products are compliant. I have no idea where this idea originally came from or what standards it may apply to. Can anyone out there help me out? Dave --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
80/80 rule for euro compliance?
Greetings all, I remember hearing somewhere ( it seems that I found the answer somewhere but I can't remember) that there is a stipulation for European compliance that one should have 80% certainty that 80% of one's products are compliant. I have no idea where this idea originally came from or what standards it may apply to. Can anyone out there help me out? Dave --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
