RE: USA DoD Document Source
I'm accepting payments for Ed's good work. Not to worry I'll forward them to him full and complete. Gary -Original Message- From: John Juhasz [mailto:jjuh...@fiberoptions.com] Sent: Tuesday, January 02, 2001 11:19 AM To: 'Price, Ed'; 'emc-p...@ieee.org' Subject: RE: USA DoD Document Source Already came in handy today. Had to review 'salt fog' method of MIL-STD-810, Method 509. This forum was indeed worth it's weight in gold today!! Thanks Ed!! John Juhasz Fiber Options Bohemia, NY -Original Message- From: Price, Ed [ mailto:ed.pr...@cubic.com mailto:ed.pr...@cubic.com ] Sent: Tuesday, January 02, 2001 12:04 PM To: 'emc-p...@ieee.org' Cc: 'pmerguer...@itl.co.il' Subject: USA DoD Document Source Hi Listees! The year is starting out on a good note. I just found out that the USA Department of Defense now has a public access site for all 100,000 or so DoD documents. [This is new, since they previously required that you sign up for a commercial account.] All you have to do now, to get a pdf of any active USA specification, is just go to: http://astimage.daps.dla.mil/quicksearch/ http://astimage.daps.dla.mil/quicksearch/ and search by number, title or subject. Wouldn't it be nice for all the other regulatory bodies to take a hint here? Regards, Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: Seeking assistance from Chemical Experts
At 01:40 PM 1/2/01 -0700, Kenneth McCormick wrote: Thanks guys...BUT, I am not trying to convince UL that I am correct. This is all internal to the company I am working with. There are at least four chemical compositions that qualify for the term petroleum spirits You can find their specification at the ASTM website http://www.astm.org/DATABASE.CART/PAGES/D235.htm The spec you want is: D235-99 Standard Specification for Mineral Spirits (Petroleum Spirits) (Hydrocarbon Dry Cleaning Solvent) --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: Seeking assistance from Chemical Experts
We might be trying to make a mountain out of a molehill here. The basic intent of the various standards is to ensure that power rating information is not easily rubbed off. The international standards IEC/EN60950 (sec. 1.7.15) stipulate 15 second rub tests using water and petroleum spirits. The makeup of these spirits is stipulated. However, if a label withstands the rub test with any of the usual household spirits, e.g. kerosene, isopropyl alcohol, rubbing alcohol, lamp oil, lighter fluid, gasoline etc., it will probably withstand the test same with any of the uniquely specified petroleum spirits. I assume each of us has at one time tried to remove printing or the complete label from a jar or bottle for other uses. My own experience is that if one spirit will work, so will the others. Some (gasoline) will work faster than others (lighter fluid). Conversely, if a randomly chosen spirit will not work, it is time to try a knife blade or blow torch (just kidding about the torch). George Alspaugh kmccormickinc%hotmail@interlock.lexmark.com on 01/02/2001 03:40:42 PM Please respond to kmccormickinc%hotmail@interlock.lexmark.com To: emc-pstc%ieee@interlock.lexmark.com cc:(bcc: George Alspaugh/Lex/Lexmark) Subject: RE: Seeking assistance from Chemical Experts Thanks guys...BUT, I am not trying to convince UL that I am correct. This is all internal to the company I am working with. Just to give you an idea of how confusing this issue is, I have privately received responses stating that all the following are acceptable: Kerosene Isopropyl alcohol Rubbing Alcahol Lamp Oil Hexane Now I am not a chemical expert, but the chemical properties of these chemicals are not similar to one another (the simplest comparison is the boiling point, the above range from 60C - 300C). Calling UL and asking them what they use is easy...the hard part is proving that whatever the subject chemical is, it complies with the standard. Just wondering if anyone has had this experience before. From: Gary McInturff gary.mcintu...@worldwidepackets.com To: 'oover...@lexmark.com' oover...@lexmark.com, kmccormick...@hotmail.com CC: emc-p...@ieee.org Subject: RE: Seeking assistance from Chemical Experts Date: Tue, 2 Jan 2001 12:24:17 -0800 Not only cheap, but sometimes it is much easier just to do it their way than argue with them that you material should or should not be acceptable. Pick your battles. Let them win this one. Gary -Original Message- From: oover...@lexmark.com [mailto:oover...@lexmark.com] Sent: Tuesday, January 02, 2001 10:46 AM To: kmccormick...@hotmail.com Cc: emc-p...@ieee.org Subject: Re: Seeking assistance from Chemical Experts From the UL Test Data Sheets provided to me by my UL engineering office, the material listed in the text of the test data sheet is kerosene. I don't know what the actual physical characteristics are, but if UL uses this for their test I would assume that it is acceptable for me to use. Kerosene is an easy product to obtain and is not that expensive. I have included an excerpt of the UL 1950 test data sheet that I was given by UL. Oscar # Excerpt from the UL 1950 Test Data Sheets # 1.7.15 - PERMANENCE OF MARKING TEST: METHOD A sample of the marking label was subjected to this test. The surface of each marking as noted below was rubbed by hand for a period of 15 seconds with a water soaked cloth, and again for a period of 15 seconds with a cloth soaked with the petroleum spirit noted below. RESULTS TEST CONDITIONS: Use of Marking _ Material_ Held by _ Applied Surface Material_ OBSERVATIONS: Water Kerosene Any Damage? _ _ Legible? _ _ Curled? _ _ Edge Lifted? _ _ Easily Removed Intact?_ _ The marking was/was not durable and legible. Comments:___ _ Document: 060.Eng # End of Excerpt from UL 1950 # --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: Seeking assistance from Chemical Experts
Thanks guys...BUT, I am not trying to convince UL that I am correct. This is all internal to the company I am working with. Just to give you an idea of how confusing this issue is, I have privately received responses stating that all the following are acceptable: Kerosene Isopropyl alcohol Rubbing Alcahol Lamp Oil Hexane Now I am not a chemical expert, but the chemical properties of these chemicals are not similar to one another (the simplest comparison is the boiling point, the above range from 60C - 300C). Calling UL and asking them what they use is easy...the hard part is proving that whatever the subject chemical is, it complies with the standard. Just wondering if anyone has had this experience before. From: Gary McInturff gary.mcintu...@worldwidepackets.com To: 'oover...@lexmark.com' oover...@lexmark.com, kmccormick...@hotmail.com CC: emc-p...@ieee.org Subject: RE: Seeking assistance from Chemical Experts Date: Tue, 2 Jan 2001 12:24:17 -0800 Not only cheap, but sometimes it is much easier just to do it their way than argue with them that you material should or should not be acceptable. Pick your battles. Let them win this one. Gary -Original Message- From: oover...@lexmark.com [mailto:oover...@lexmark.com] Sent: Tuesday, January 02, 2001 10:46 AM To: kmccormick...@hotmail.com Cc: emc-p...@ieee.org Subject: Re: Seeking assistance from Chemical Experts From the UL Test Data Sheets provided to me by my UL engineering office, the material listed in the text of the test data sheet is kerosene. I don't know what the actual physical characteristics are, but if UL uses this for their test I would assume that it is acceptable for me to use. Kerosene is an easy product to obtain and is not that expensive. I have included an excerpt of the UL 1950 test data sheet that I was given by UL. Oscar # Excerpt from the UL 1950 Test Data Sheets # 1.7.15 - PERMANENCE OF MARKING TEST: METHOD A sample of the marking label was subjected to this test. The surface of each marking as noted below was rubbed by hand for a period of 15 seconds with a water soaked cloth, and again for a period of 15 seconds with a cloth soaked with the petroleum spirit noted below. RESULTS TEST CONDITIONS: Use of Marking _ Material_ Held by _ Applied Surface Material_ OBSERVATIONS: Water Kerosene Any Damage? _ _ Legible? _ _ Curled? _ _ Edge Lifted? _ _ Easily Removed Intact?_ _ The marking was/was not durable and legible. Comments:___ _ Document: 060.Eng # End of Excerpt from UL 1950 # kmccormickinc%hotmail@interlock.lexmark.com on 01/02/2001 01:12:36 PM Please respond to kmccormickinc%hotmail@interlock.lexmark.com To: emc-pstc%ieee@interlock.lexmark.com cc:(bcc: Oscar Overton/Lex/Lexmark) Subject: Seeking assistance from Chemical Experts _ Get your FREE download of MSN Explorer at http://explorer.msn.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: Seeking assistance from Chemical Experts
Not only cheap, but sometimes it is much easier just to do it their way than argue with them that you material should or should not be acceptable. Pick your battles. Let them win this one. Gary -Original Message- From: oover...@lexmark.com [mailto:oover...@lexmark.com] Sent: Tuesday, January 02, 2001 10:46 AM To: kmccormick...@hotmail.com Cc: emc-p...@ieee.org Subject: Re: Seeking assistance from Chemical Experts From the UL Test Data Sheets provided to me by my UL engineering office, the material listed in the text of the test data sheet is kerosene. I don't know what the actual physical characteristics are, but if UL uses this for their test I would assume that it is acceptable for me to use. Kerosene is an easy product to obtain and is not that expensive. I have included an excerpt of the UL 1950 test data sheet that I was given by UL. Oscar # Excerpt from the UL 1950 Test Data Sheets # 1.7.15 - PERMANENCE OF MARKING TEST: METHOD A sample of the marking label was subjected to this test. The surface of each marking as noted below was rubbed by hand for a period of 15 seconds with a water soaked cloth, and again for a period of 15 seconds with a cloth soaked with the petroleum spirit noted below. RESULTS TEST CONDITIONS: Use of Marking _ Material_ Held by _ Applied Surface Material_ OBSERVATIONS: Water Kerosene Any Damage? _ _ Legible? _ _ Curled? _ _ Edge Lifted? _ _ Easily Removed Intact?_ _ The marking was/was not durable and legible. Comments:___ _ Document: 060.Eng # End of Excerpt from UL 1950 # kmccormickinc%hotmail@interlock.lexmark.com on 01/02/2001 01:12:36 PM Please respond to kmccormickinc%hotmail@interlock.lexmark.com To: emc-pstc%ieee@interlock.lexmark.com cc:(bcc: Oscar Overton/Lex/Lexmark) Subject: Seeking assistance from Chemical Experts --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
SCV EMC Society January 2001 Meeting Announcement
Meeting Announcement: Santa Clara Valley Chapter of IEEE EMC Society Meeting Scott Bennett: The Physics of Electromagnetics Without Abstract Mathematics Tuesday, January 9, 2001 The January meeting of the Santa Clara Valley EMC Society will be held at SGI in Mountain View, 1600 Amphitheatre Pkwy., building 40, in the Presentation Center above the lobby. The social gathering will start at 5:30 PM, and food and drinks will be available. The technical presentation will start at 7:30 PM. A map with the location of the SGI campus is available at the Santa Clara Valley web site www.scvemc.org . Abstract : The basic point source of electromagnetic fields -- the charge element -- is derived and described with basic physics and high-school mathematics. The charge element is a simpler point source than the current element -- it has five field components, whereas the current element has seven -- yet these two basic field sources are shown to be equivalent. The physical causes of the two H-field and three E-field components of the charge element are easily explained, and they are kept obvious with the descriptions derived for those components. Simple examples are then given to show how to use charge elements to better understand the fields of full-size currents, and the physical origins of those fields. Regards, Neven Pischl
Re: TNV-1 in Norway
In a message dated 1/2/01, Gaétan Hogue writes: I have an TNV-1 interface (ISDN) on a card going in a computer. Some of my designers told me that we need reinforced isolation transformer(3kv) in Norway. Hi Gaétan: The main requirement for reinforced insulation is between the TNV-1 circuit and the AC power mains. This is usually taken care of by the insulation in your power supply. Your designers may be referring to the requirement for supplementary insulation between TNV-1 circuits and earth ground. In the main text of EN 60950, only a hipot test is required (clause 6.4.1), but Annex ZB in EN 60950 calls out additional requirements for Norway and Sweden. For Norway, you will need supplementary insulation unless you qualify for the exemptions related to permanent grounding or a Type B mains plug. If you decide to implement supplementary insulation, keep in mind that in addition to a 1500 VRMS hipot test, there are specific requirements for creepage distance, clearance distance, and distance through insulation. This will affect your board layout, your choice of transformer, and (sometimes) your choice of connector. Joe Randolph Telecom Design Consultant Randolph Telecom, Inc. 781-721-2848 http://www.randolph-telecom.com
RE: USA DoD Document Source
Already came in handy today. Had to review 'salt fog' method of MIL-STD-810, Method 509. This forum was indeed worth it's weight in gold today!! Thanks Ed!! John Juhasz Fiber Options Bohemia, NY -Original Message- From: Price, Ed [mailto:ed.pr...@cubic.com] Sent: Tuesday, January 02, 2001 12:04 PM To: 'emc-p...@ieee.org' Cc: 'pmerguer...@itl.co.il' Subject: USA DoD Document Source Hi Listees! The year is starting out on a good note. I just found out that the USA Department of Defense now has a public access site for all 100,000 or so DoD documents. [This is new, since they previously required that you sign up for a commercial account.] All you have to do now, to get a pdf of any active USA specification, is just go to: http://astimage.daps.dla.mil/quicksearch/ and search by number, title or subject. Wouldn't it be nice for all the other regulatory bodies to take a hint here? Regards, Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: OATS Turntable Canopy
It appears that PVC has been used successfully for greenhouses and other outdoor structures. UV has been noted to be a problem; but painting or other covering can solve that issue. UV stabilized irrigation pipe is also available. Here are some links for the DIY crowd. http://www.jps.net/circo/greenhouse.htm http://www.jps.net/circo/greenhouse.htm http://www.sirius.com/~bobstahl/bluetarp.htm#idioms http://www.sirius.com/~bobstahl/bluetarp.htm#idioms http://www.thomasregister.com/olc/usplastic/furnitur.htm http://www.thomasregister.com/olc/usplastic/furnitur.htm http://www.bae.ncsu.edu/programs/extension/publicat/postharv/green/small_gre enhouse.pdf http://www.bae.ncsu.edu/programs/extension/publicat/postharv/green/small_gr eenhouse.pdf http://www.snapclamp.com/prices.htm http://www.snapclamp.com/prices.htm http://www.littlegreenhouse.com/pvchouse.shtml http://www.littlegreenhouse.com/pvchouse.shtml http://thepvcstore.com/mainindex.htm http://thepvcstore.com/mainindex.htm Richard Woods -- From: wo...@sensormatic.com [SMTP:wo...@sensormatic.com] Sent: Tuesday, January 02, 2001 8:28 AM To: emc-p...@majordomo.ieee.org Subject: RE: OATS Turntable Canopy Thanks to everyone who responded. Several of you suggested using PVC pipe. We have tried using schedule 40 PVC pipe (the stuff you find at Home Depot) for other outside structural uses and have found that the material creeps badly in the Florida heat. The result is sagging horizontal supports. Has anyone successfully built an 8-10 foot wide durable outside structure using PVC pipe? If so, what type of PVC pipe was it? --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: CEPT Standards
I found T/R 02-02 Harmonised frequency band for the emergency services List-Post: emc-pstc@listserv.ieee.org Date: Bonn 1993 Revision: Odense 1997 Go to http://www.ero.dk/ http://www.ero.dk/ and then select ERC Recommendations and scroll down the list. Richard Woods -- From: Mike Hopkins [SMTP:mhopk...@keytek.com] Sent: Tuesday, January 02, 2001 1:10 PM To: 'IEEE PSTC' Cc: 'Kimpsion' Subject: CEPT Standards I've had a request to meet CEPT T/TR 02-02E, but can find no references to this. I found the CEPT web site, but they don't mention any standards at all. Can only find references to radio conferences, postage stamps and amateur radio -- nothing specific to testing products. Anyone out there have any information that would at least tell me what this is ?? Thanks,,, Best Regards for the New Year, Michael Hopkins mhopk...@keytek.com Tel: 1-800-753-9835 Fax: 1-978-275-0850 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: Seeking assistance from Chemical Experts
From the UL Test Data Sheets provided to me by my UL engineering office, the material listed in the text of the test data sheet is kerosene. I don't know what the actual physical characteristics are, but if UL uses this for their test I would assume that it is acceptable for me to use. Kerosene is an easy product to obtain and is not that expensive. I have included an excerpt of the UL 1950 test data sheet that I was given by UL. Oscar # Excerpt from the UL 1950 Test Data Sheets # 1.7.15 - PERMANENCE OF MARKING TEST: METHOD A sample of the marking label was subjected to this test. The surface of each marking as noted below was rubbed by hand for a period of 15 seconds with a water soaked cloth, and again for a period of 15 seconds with a cloth soaked with the petroleum spirit noted below. RESULTS TEST CONDITIONS: Use of Marking _ Material_ Held by _ Applied Surface Material_ OBSERVATIONS: Water Kerosene Any Damage? _ _ Legible? _ _ Curled? _ _ Edge Lifted? _ _ Easily Removed Intact?_ _ The marking was/was not durable and legible. Comments:___ _ Document: 060.Eng # End of Excerpt from UL 1950 # kmccormickinc%hotmail@interlock.lexmark.com on 01/02/2001 01:12:36 PM Please respond to kmccormickinc%hotmail@interlock.lexmark.com To: emc-pstc%ieee@interlock.lexmark.com cc:(bcc: Oscar Overton/Lex/Lexmark) Subject: Seeking assistance from Chemical Experts Recently, I was asked to show that the hexane that I was using for UL1950 and related standards (Marking durability test of 1.7.15) infact complied with the requirements in the standard, Specifically: The petroleum spirit to be used for the test is aliphatic solvent hexane having a maximum aromatics content of a 0.1% by volume, a kauri-butanol value of 29, an initial boiling point of approximately 65°C, a dry point of approximately 69°C and a mass per unit volume of approximately 0.7 kg/l. I am communicating with the company that I purchased the chemical from, and all I get is the MSDS Sheets which do not have all of the above information. Has anyone else had to locate these specifications? How did you go about obtaining them. I am not opposed to having a lab test for these characteristics, but I have no clue where to begin with such a test...chemistry was NOT my best subject! I know that this conversation came up in the past and I believe everyone agreed that standard hexane would suffice...I just need to be able to show that hexane meets the above requirements. Thanks in advance, Kenneth _ Get your FREE download of MSN Explorer at http://explorer.msn.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: OATS Turntable Canopy
What about using the fake wood that they have out now? It is composed of some type of plastic but not sure of the base material used, or if it is re-cycled plastic. Just another thought, I'm sure it would hold its shape better in the high heat regions of the US. One source is McMaster-Carr (spendy source however) http://www.mcmaster.com punch in #8506K33, search by product index option. Hope this provides another option for you! -Original Message- From: wo...@sensormatic.com [mailto:wo...@sensormatic.com] Sent: Tuesday, January 02, 2001 7:28 AM To: emc-p...@majordomo.ieee.org Subject: RE: OATS Turntable Canopy Thanks to everyone who responded. Several of you suggested using PVC pipe. We have tried using schedule 40 PVC pipe (the stuff you find at Home Depot) for other outside structural uses and have found that the material creeps badly in the Florida heat. The result is sagging horizontal supports. Has anyone successfully built an 8-10 foot wide durable outside structure using PVC pipe? If so, what type of PVC pipe was it? --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Seeking assistance from Chemical Experts
Recently, I was asked to show that the hexane that I was using for UL1950 and related standards (Marking durability test of 1.7.15) infact complied with the requirements in the standard, Specifically: The petroleum spirit to be used for the test is aliphatic solvent hexane having a maximum aromatics content of a 0.1% by volume, a kauri-butanol value of 29, an initial boiling point of approximately 65°C, a dry point of approximately 69°C and a mass per unit volume of approximately 0.7 kg/l. I am communicating with the company that I purchased the chemical from, and all I get is the MSDS Sheets which do not have all of the above information. Has anyone else had to locate these specifications? How did you go about obtaining them. I am not opposed to having a lab test for these characteristics, but I have no clue where to begin with such a test...chemistry was NOT my best subject! I know that this conversation came up in the past and I believe everyone agreed that standard hexane would suffice...I just need to be able to show that hexane meets the above requirements. Thanks in advance, Kenneth _ Get your FREE download of MSN Explorer at http://explorer.msn.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
CEPT Standards
I've had a request to meet CEPT T/TR 02-02E, but can find no references to this. I found the CEPT web site, but they don't mention any standards at all. Can only find references to radio conferences, postage stamps and amateur radio -- nothing specific to testing products. Anyone out there have any information that would at least tell me what this is ?? Thanks,,, Best Regards for the New Year, Michael Hopkins mhopk...@keytek.com Tel: 1-800-753-9835 Fax: 1-978-275-0850 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
USA DoD Document Source
Hi Listees! The year is starting out on a good note. I just found out that the USA Department of Defense now has a public access site for all 100,000 or so DoD documents. [This is new, since they previously required that you sign up for a commercial account.] All you have to do now, to get a pdf of any active USA specification, is just go to: http://astimage.daps.dla.mil/quicksearch/ and search by number, title or subject. Wouldn't it be nice for all the other regulatory bodies to take a hint here? Regards, Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
TNV-1 in Norway
Hi all Can you help me EN60950 or IEC950 nordic deviation I have an TNV-1 interface (ISDN) on a card going in a computer. Some of my designers told me that we need reinforced isolation transformer(3kv) in Norway. For me, this result is reliant on the host equipment, and whether the host employs a connection to earth. I think that the computer power supply must be reinforced already and the Interface transformer can be only 1.5kv. Do I need 3kv transformer for TNV-1 interface in Norway for pc cards? Thanks Gaétan Hogue Approvals Manager Eicon Networks Phone: (514) 832-3488 Fax: (514) 745-5588 Email: gaet...@eicon.com http://www.eicon.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
CPSTC Product Safety's next meeting: Jan. 10, 2001
Greetings, For those of you who are interested in attending the Colorado Product Safety Technical Committee (CPSTC) meeting, please read on. Quick summary Date : Wednesday, January 10, 2001 Time : 6:30pm Location: Jackson's All American restaurant in Thornton, Colorado. Just off of I-25 onto 104th east, in-between Home Depot and Biggs. Agenda 1. Elections will be held at the January 10, 2001 meeting. Presently, I will be collecting nominations for chairman up until January 8, 2001. 2. Agenda for year 2001 3. Review the progress of the workshop presentation by Ron Duffy and Richard Georgerian for submittal to the IEEE EMC Montreal committee. If you plan on attending, please let me know so I can plan accordingly with the restaurant. Guests are welcomed and encouraged to attend our first meeting of the new year. For more details please visit the Product Safety News web site: http://www.ewh.ieee.org/soc/emcs/pstc/index.htm Thanks in advance. Richard Georgerian Technical Committee 8 Product Safety (TC-8), Vice-chair Colorado Product Safety Technical Committee (CPSTC), Chair Product Compliance Engineer Exabyte 1685 38th Street Boulder, CO 80301 USA tel.: 303-417-7537 fax: 303-417-5710 email: mailto:richa...@exabyte.com
RE: OATS Turntable Canopy
Thanks to everyone who responded. Several of you suggested using PVC pipe. We have tried using schedule 40 PVC pipe (the stuff you find at Home Depot) for other outside structural uses and have found that the material creeps badly in the Florida heat. The result is sagging horizontal supports. Has anyone successfully built an 8-10 foot wide durable outside structure using PVC pipe? If so, what type of PVC pipe was it? --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: Looking for Mexico (NOM) information
Try UL . . . http://www.ul.com/mexico/ John Juhasz Fiber Options Bohemia, NY -Original Message- From: Ted Chaffee [mailto:tchaf...@qtm.net] Sent: Tuesday, January 02, 2001 7:04 AM To: emc-p...@ieee.org Subject: Looking for Mexico (NOM) information Group, I am looking for information to get product into Mexico. The product is a garage door opener (low power transmitter). Currently, the product has been tested for compliance to FCC 15.231 and sales would like to take it to the Mexican market. Any information regarding contact persons and / or regulation requirements will be greatly appreciated. Thanks, Ted Chaffee AHD tchaf...@ahde.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Mil Spec 55110
Happy New Year Everyone! Does anyone know the title and scope of Mil-Std-55110? Where can this standard be purchased? Peter Merguerian Managing Director Product Testing Division I.T.L. (Product Testing) Ltd. Hacharoshet 26, POB 211 Or Yehuda 60251, Israel Tel: 972-3-5339022 Fax: 972-3-5339019 e-mail: pmerguer...@itl.co.il website: http://www.itl.co.il TO LEARN ABOUT AUSTRALIAN AND NEW ZEALAND REQUIREMENTS, CONTACT ME AT THE EARLIEST STAGES OF YOUR DESIGN; REQUIREMENTS CAN BE TRICKY! --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Looking for Mexico (NOM) information
Group, I am looking for information to get product into Mexico. The product is a garage door opener (low power transmitter). Currently, the product has been tested for compliance to FCC 15.231 and sales would like to take it to the Mexican market. Any information regarding contact persons and / or regulation requirements will be greatly appreciated. Thanks, Ted Chaffee AHD tchaf...@ahde.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
HP6842A harmonics analyser - is it obsolete?
Happy New Year! Not such a happy start for me though. I have been informed by Agilent that they will not be supporting a software upgrade for the 6800 series harmonics analysers for A14 to EN61000-3-2. I have studied A14 and there appear to be some measurement technique changes. Does this mean that I cannot just set my HP6842A to measure class A limits to test to A14? If I cannot, does anyone know of a company that has written or can write a software upgrade for me? Or have Agilent turned several thousand pounds worth of compliance test equipment into a few hundred pounds worth of power supply? Regards Chris Colgan Compliance Engineer TAG McLaren Audio Ltd The Summit, Latham Road Huntingdon, Cambs, PE29 6ZU *Tel: +44 (0)1480 415 627 *Fax: +44 (0)1480 52159 * Mailto:chris.col...@tagmclarenaudio.com * http://www.tagmclarenaudio.com ** Please visit us at www.tagmclarenaudio.com ** The contents of this E-mail are confidential and for the exclusive use of the intended recipient. If you receive this E-mail in error, please delete it from your system immediately and notify us either by E-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the E-mail. TAG McLaren Audio Ltd The Summit, 11 Latham Road Huntingdon, Cambs, PE29 6ZU Telephone : 01480 415600 (+44 1480 415600) Facsimile : 01480 52159 (+44 1480 52159) ** Please visit us at www.tagmclarenaudio.com ** --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
It's just a wire, isn't it?
Hi All, After a few weeks of holiday rush, I managed to write my technical article for January. And when is a wire, not just a wire?. After a few month's of articles on measurement techniques, this month's Technical Tidbit article on www.dsmith.org is more along the lines of design and system reliability. The article is about the amazing property of a conductor to develop significant series voltage drop across its length, even from an ordinary logic signal. Many engineers and technicians already know that the inductive reactance of a conductor exceeds its resistance at most frequencies, but even logic signals can produce volts of drop across the inductance in a short wire. The article also contains an amusing personal experience having to do with this effect. Go to http://www.dsmith.org for the article. I hope everyone had a good holiday season. Doug -- --- ___ _ Doug Smith \ / ) P.O. Box 1457 = Los Gatos, CA 95031-1457 _ / \ / \ _ TEL/FAX: 408-356-4186/358-3799 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-( ) | o |Email: d...@dsmith.org \ _ /]\ _ / Website: http://www.dsmith.org --- --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
