Dave,
First, tread lightly in this area. I have seen some fairly tragic mistakes made by selecting the wrong stripper, wax or process. In the ESD arena, that was a test floor that had to be ripped up because the contractor used a stripper and wax combination that wasn't approved, which caused serious problems with the flooring. In a public arena, I have tested floors at a supermarket that were waxed with a particularly insulative wax, causing the triboelectrification from the carts to shock customers fairly badly. My experience in this area was with FIPS PUB 94, which was the Federal Information Processing Standards publication entitled "Guideline on Electrical Power for Automatic Data Processing Installations." I am under the impression that it contains data regarding the dissapative resistance to ground that is required for different classes of installations. It may be that there are other publications that would be of assistance for you, as well. A quick search on the web indicated that it was withdrawn in mid-1997 in part because it duplicated a voluntary industry standard. The ESD Association (http://www.eosesd.org) in the US and the The British Electrostatic Control Association (http://www.beca.co.uk) appear to be the best sources of information and would likely be a better point to begin your inquiry. >From memory, I am under the impression that you're looking for a resistance to ground on the order of 10,000 to 100,000 ohms. (The range on the ESD Assoc. website indicates between 10E4 and 10E11). This would allow any charge developed to bleed off through this resistance without posing a significant hazard to equipment or personnel. The standard referenced on the ESD Association website is EOS/ESD-S11.11. Volume resistivity measurements are different than surface measurements I have referenced above. There is also a reference to ANSI ESD S7 - Floor Materials - Resistive Characterization of Materials. The testing itself is generally conducted with an insulation resistance (i.e. megger) meter and two five-pound weights spaced at a specific interval (maybe 1m), as well as meaurements from one weight to ground reference. It's a very simple test. Please let me know if you would like a reference to a US firm that I know is able to assist you in this area. Regards, Michael Garretson Sr. Compliance Engineer RadiSys Corporation +1 503 615-1227 Dave Wilson <DWilson@alid To: "'[email protected]'" <[email protected]>, "'[email protected]'" ian.com> <[email protected]> Sent by: cc: owner-emc-pst Subject: ESD Floor waxing [email protected] 12/11/2000 11:21 AM Please respond to Dave Wilson Anybody know what spec has requirements/guidance for ESD floor waxing? Thanks, Dave Wilson Alidian Networks ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected] ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: [email protected] Michael Garretson: [email protected] For policy questions, send mail to: Richard Nute: [email protected]
