(Fwd) Medical Devices Environmental Requirements
Joel, To the best of my knowledge, there are no specific environmental standards for medical equipment. IEC 60601-1, (the product safety standard), clause 10.1, states Equipment shall be capable, while packed for transport and storage, of being exposed to environmental conditions as stated by the manufacturer. Clause 10.2.1 specifies ambient temperature, relative humidity and atmospheric pressure ranges for operation in normal use. Particular types of medical equipment, which are required to comply with one of the IEC 60601-2-XX standards, may be subject to additional or different environmental requirements. Regards, Jon Griver http://www.601help.com The Medical Device Developer's Guide to IEC 60601-1 Hi All Can anybody help me out with Environmental testing requirement/Standards (Temp,Vibration) for medical devices? Thank You Joel Mandel Reliability Dept ADC Israel --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Re: Medical equipment and EN61000-3-2
Patrick, I don't know whether or not hospital power systems fall within the scope of EN61000-3-2:2001. But in any case, compliance with EN61000-3- 2 is not required under the Medical Devices Directive. The only harmonized EMC standard under the MDD is EN 60601-1-2:1993, which does not have any harmonics requirements. Medical equipment is, of course, specifically exempted from the EMC Directive. Regards, Jon Griver http://www.601help.com The Medical Device Developers Guide to IEC 60601-1. On 18 Sep 2002 at 12:55, plaw...@west.net wrote: The scope of EN61000-3-2:2001 says that the standard deals with harmonic currents injected into the public low-voltage distribution system. I can see that residences and offices are connected to the public system. However, I don't know about distribution to hospitals. Are their power requirements specialized enough that their electricity is provided by a MV transformer? This would exempt hospital-only medical products from the harmonic current requirements. Or are their different levels of hospitals, some fed by LV transformers, some fed by MV transformers? Patrick Lawler plaw...@west.net --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Re: Distributors of Medical Devices in Europe
Mark, I assume that you mean Class 1 according to the EU's Medical Devices Directive, and not the FDA classification. Although the principle is the same, i.e. Class 1 is low-risk, the classification method is not identical. The MDD deals with the device rather than the distributor. Compliance of the device with the MDD is mandatory. You should probably check the Health Ministry or 'Competant Authority' (as defined in the MDD), to check whether there are requirements on the distributor. As this subject is not covered by the MDD, the regulations are likely to be different in each country of the EU. You can contact the UK Competent Authority via their website at: http://www.medical-devices.gov.uk/ Distributors would certainly be obligated to report incidents involving injury or death to the authorities. I hope this helps. Jon Griver http://www.601help.com The Medical Device Developer's Guide to IEC 60601-1 On 18 Sep 2002 at 8:11, Mark Schmidt wrote: Hello Group, Are there any requirements for European Distributors of Medical Devices, i.e. license or registration. The Device in question is a Class 1 device. Thank you. Mark Schmidt Regulatory Compliance X-Rite Incorporated Grandville, MI USA (616) 257 2469 mschm...@xrite.com --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Re: Grounding in an operating room environment ...
Doug, You are really asking if the product is Type B (earthed applied part) or Type BF (isolated ground part) according the the classification of IEC 60601-1. The answer is that some types of medical equipment must be Type BF or even Type CF (direct cardiac contact) according to the appropriate particular standard, IEC 60601-2-X. For many types of equipment it is left to the manufacturer to decide. Generally speaking the longer and more invasive the contact with the patient, the more likely that Type BF or CF is required. In particular, in situations where many medical instruments may be connected to the patient simutaneously, e.g. in the operating room or intensive care, there is a greater need for isolated patient applied parts. This is to prevent a fault in one device causing dangerous leakage currents through the patient to earth via another device. Regards, Jon Griver http://www.601help.com The Medical Device Developer's Guide to IEC 60601-1 One final question - if some product which uses 115/230vac mains power and if there is to be metal contact between that product and a patient in an operating room environment, is it a matter of accepted practice that the mfr can decide the metal is grounded/ungrounded or must it be grounded as dictated by some standard? Regards, 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- End of forwarded message --- --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
(Fwd) Medical devices, current limit
Kim, This type of product may be covered by IEC 60601-2-10, PARTICULAR REQUIREMENTS FOR THE SAFETY OF NERVE AND MUSCLE STIMULATORS, or possibly, IEC 60601-2-14, PARTICULAR REQUIREMENTS FOR THE SAFETY OF ELECTROCONVULSIVE THERAPY EQUIPMENT I don't have a copy of these standards, but they should relate to this issue. With regard to a general discusion of this subject, have a look at the Rationale section (Appendix A) of IEC 60601-1. The rationale on sub-clause 19.3 gives information, a graph and references on this subject. Regards, Jon Griver http://www.601help.com THe Medical Device Developer's Guide to IEC 60601-1 --- Forwarded message follows --- Hi all I have a medical device under EU directive 93/42/EEC. It is a class IIa product and sends some small electrical pulses through the body for treatments. Does anyone know of any limit for the current ? (voltage is generated from battery and is max. 16Vdc) Does anyone have the current/frequency diagram over max. current the the body can withstand without hazards ? (It is normally used for mains leakage current protection). Best regards, Kim Boll Jensen Bolls Raadgivning Denmark --- End of forwarded message --- --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
(Fwd) RE: Creepage on PCB Internal Layers
Chris, I know I may be stating the obvious, but creepage and clearance distances do not apply on inner layers of void free PCB's BY DEFINITION. If you refer to clauses 1.2.10.1 and 1.2.10.2 in IEC 60950 or 3.6.7 and 3.6.8 of IEC 61010-1, clearance is defined as distance in air between two conductive parts, while creepage is the shortest distance along the surface of the insulating material between two conductive parts. You are looking for distance through insulation. Regards, Jon Griver www.601help.com The Medical Device Developer's Guide to IEC 60601-1 Yes, Thanks Richard By the way...Rich Woods...Tektronics (Richard Payne's company) also makes fiber optic power meters. Sorry that I forgot to mention them in my reply earlier today. Yes, they're a competitor of ours; but their compliance guy is nice enough to answer my questions :-) ** Now back to the issue at hand. That's what I was looking for (the statement in paragraph 6.7 of EN 61010-1) The copy that I have has the amendments separate. I found it in Amendment 2 as you stated. To me, it's sort of funny in that it just says that the Creepage and Clearance distances do not apply on inner layers of void free PCBs. That's nice; but I can't find where a distance is specified. I mean, I would think that there should be some minimum distance between an AC line and a 5V SELV line on an inner layer of the board Our layout guy has a military specification that specifies insulation for 300-500V circuits. It specifies .100 on external layers and .010 on internal layers...which would work out to a factor of 10 reduction between surface layers and inner layers. Using that same reasoning, I was looking at a circuit that needs 8mm of creepage on a surface layer (.314). Would I be safe in allowing 0.8mm (0.0314) of distance on an inner layer? Anybody have any thoughts on this one. Chris Maxwell | Design Engineer - Optical Division email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797 8024 NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA web www.nettest.com | tel +1 315 797 4449 | -Original Message- From: richard.pa...@exgate.tek.com [SMTP:richard.pa...@exgate.tek.com] Sent: Tuesday, August 13, 2002 3:17 PM To: Chris Maxwell; emc-p...@majordomo.ieee.org Subject: RE: Creepage on PCB Internal Layers Hi Chris: The 2nd edition of 61010 has the statement in clause 6.7: There are no CLEARANCE or CREEPAGE DISTANCE requirements for the interior of void-free moulded parts, including the inner layers of multi-layer printed circuit boards. UL3111 has the following UL deviation from the 1st edition of 61010: 6.7 Eliminate spacing requirements on inner layers of multi-layer printed circuit boards The inner layers of a multilayer printed circuit board are considered to be void-free molded parts. The CLEARANCES and CREEPAGE DISTANCES specified in Annex D do not apply to these inner layers. (See Note 2 of Annex D, subclause D.2.1 of Amendment 1). Richard Richard Payne Tektronix Inc. Product Safety Engineering V: (503) 627-1820 F: (503) 627-3838 E: richard.pa...@tektronix.com --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- End of forwarded message --- --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
EMC/EMI/ESD Requirements for Medical Electronics in US?
John, In the United States, the FDA regulates medical devices. The following link will gives you information on the FDA's approach to EMC: http://www.fda.gov/cdrh/emc/ Although IEC 60601-1-2 is a 'concensus standard', FDA investigators sometimes have different or additional requirements. I have even known cases of demands for compliance with military immunity standards. The FDA writes the following: This standard should serve as a baseline for all of the appropriate device areas. However, where there are existing CDRH guidance documents with additional EMC specifications then these will supersede the basic IEC requirements. Note that you will need UL 2601-1, but for product safety, not EMC. The reference to electrostatic charges in clause 39.3, which you found, is in regard to the risk of explosion of anaesthetic gases! This standard, or the international version, IEC 60601-1, covers electrical, mechanical and other safety aspects of medical electrical products. You may also find EMC requirements in the standards for particular types of medical equipment. These are numbered IEC 60601-2- XX, and you can see a list of them at: http://www.601help.com/Other_601_Standards/other_601_standards.html These EMC requirements may amend the requirements in IEC 60601-1-2 and will always be in clause 36 of these standards. Also note that in the US, medical equipment which intentionally uses EM radiation (e.g. microwave therapy devices), as well as ultrasound equipment, is required to comply with FCC Part 18, for ISM equipment. For the European Union, the EMC requirements are EN 60601-1-2, plus any EMC requirements of EN 60601-2-XX. (The EN version is usually almost identical to the IEC version). However, you should note that at the moment the 1993 version of the standard is in effect, not the 2001 version! Presumably the 2001 version will come into effect at some point in the future. You can see a list of all the Medical Device Directive harmonised standards at: http://europa.eu.int/comm/enterprise/newapproach/standardization/harmstds/reflist/meddevic.html (If this wraps to two lines, you may have to enter the second line manually) A further note about IEC or EN 60601-1-2. It is a 'pointing' standard, in that it refers to and provides test levels for EN 55011 for emissions and IEC 61000-4-X for immunity. These latter standards basically provide test methods for different EMC phenomena. Regards, Jon Griver www.601help.com The Medical Device Designer's Guide to IEC 60601-1 EMC-PSTC'ers, Does the United States have any electromagnetic compatibility (EMC), electromagnetic interference (EMI), or electrostatic discharge (ESD) standards for medical electronics? If so, where can I find them? A prospective client has asked about EMC/EMI/ESD testing for a wearable medical-monitor. It looks like the applicable standards for Europe are: * EN 55011:1998 +Amendment A1:1999. * EN 60601-1-2:2001. I found some references on the Internet to: * The Food and Drug Administration using UL 2601-1 for medical devices. * UL 2601-1 having the same immunity requirements as EN 60601-1-2. Having been bitten by supposedly-identical standards being just a little different in areas critical to products I've designed, we bought UL2601-1 ($155 with shipping and handling), and received it yesterday. The cover letter is dated June 16,2000, and describes it as Second Edition, Dated October 24, 1997. Section 39.2 has a couple of paragraphs about Prevention of electrostatic charges. Appendix A1, section A1.5.2, says The sensitivity of EQUIPMENT to external interference (electromagnetic field, perturbations of the supply voltage) is under consideration. Appendix L refers to IEC 601-1-2:1993. Is there a newer amendment to UL 2601-1 that has EMC/EMI/ESD requirements, or just what *do* people use to verify/certify medical electronics? Thanks! John Barnes dBi Corporation http://www.dbicorporation.com/ --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- End of forwarded message ---
(Fwd) TOUCH CURRENT LIMIT
Dear Xing weibing, I can't give you a direct answer to your questions, but you may find the discussion in sub-clause 19.3 of the General Guidance and Rationale in IEC 60601-1 (Electrical Medical Equipment) of interest. There is information on the effect of electrical currents on the human body, as well as a list of references. Regards, Jon Griver www.601help.com The Medical Device Developers Guide to IEC 60601-1 --- Forwarded message follows --- Dear colleagues I have a question regarding touch current limit of IEC 60950? We can read from table 5A of IEC60950:1999: Touch current limit for accessible parts and circuits not connected to protective earth: 0.25 mA question 1 : How does it (0.25mA) come from and what it is based on? based on IEC479? OR other source why it is not 0.5mA(based on IEC60479) question 2 :for hand-held equipment it is 0.75mA why ? Please shed some light for above questions Any comments are appreciated Best Regards Xing weibing 2002-06-24 --- End of forwarded message --- --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
(Fwd) RE: Safety Overview Web Site
Reginald, Peter, Discovered at last!! Yes I admit that I set up and run both i-spec and 601help. I manage i-spec on behalf of ITL, while 601help is my own site. Although the sites are not intended for 'professionaIs', but more for design engineers who are not that knowledgeable on compliance issues, I hope that group members also find them useful. I would like to take this opportunity to ask group members for any suggestions they may have to improve these sites. I should point out that these sites are a 'labour of love', as I do not derive significant income from them. Regards, Jon Griver www.i-spec.com www.601help.com --- Forwarded message follows --- From: Peter Tarver peter.tar...@sanmina-sci.com To: Reginald Henry rhe...@vicon-cctv.com, EMC PSTC (E-mail) emc-p...@majordomo.ieee.org Subject:RE: Safety Overview Web Site Date sent: Thu, 30 May 2002 10:49:45 -0700 Send reply to: Peter Tarver peter.tar...@sanmina-sci.com Also FYI: Domain Name: I-SPEC.COM Registrar: NETWORK SOLUTIONS, INC. Whois Server: whois.networksolutions.com ITL (Product Testing) Ltd. POB 211 Or Yehuda 60251 IL Administrative Contact, Technical Contact: Griver, Jon Perhaps the same Jon Griver of 601help.com: Powerful Connections Ltd. Rehov HaGoren 13 Gedera, Not USA 70700 Israel A contributor to this list. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.com -Original Message- From: Reginald Henry Sent: Thursday, May 30, 2002 7:54 AM FYI, http://www.i-spec.com/IEC_60950/index_to_iec_60950.html I have found this site to be a good overview for safety issues RH --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- End of forwarded message --- --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Re: non 601 approved isolating component
Ron, In answer to your questions: 1) Let's assume that the component fully complies with IEC 60601-1. Unfortunately, the way tests labs will relate to this situation will depend on the lab's own internal procedures. The main concern is the level of control you have over the changes in the specification of the isolating device. Theoretically the component manufacturer could change the spec without changing the model number and without informing you. Practically, I believe that most test labs would accept this situation if there was a written commitment from the component manufacturer to inform you if there are any changes made. 2) If the isolating device is embedded in epoxy, then the test lab probably would not require the schematics of the device. If not, they would need the schematics in order to evaluate creepages and clearances. 3) Approval to another standard does not help, as the manufacturer of the component could make a change that would cause the component to no longer comply with IEC 60601-1, while still complying with its approval to the other standard. In short, you should liase with your chosen test lab on this issue. Regards, Jon Griver www.601help.com 601help - The Medical Device Developer's Guide to IEC 60601-1 On 1 May 2002 at 14:49, Ron wrote: I need to use an isolating device between a sip/sop and an applied part (BF) requiring 1500V isolation (Basic(250)). I plan on using a digital isolator, but the component does not have IEC601 approval. The component does have 2500V isolation and 8 mm creepage. Questions: 1) When our product is submitted for IEC601 certification, how does the use of the non 601 approved part affect the investigation? 2) Does the investigator need the schematic for that component? What if the schematic is not available? 3) If the component already has other approvals (UL1950 or UL1577). How does this affect the approval process? Thanks in advance. r...@vascor.com --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list