Let's not forget another datum; there is a requirement air-discharge ESD
testing be done only between 86 kPa (860 mbar) and 106 kPa (1060 mbar).
( http://www.elmac.co.uk/pdfs/ESD_considerations.pdf ) That's between
1253 feet below sea level (any labs in Ein Gedi?) and 4466 feet ASL.
Which labs in the US could charge for a pressurized ESD room? Colorado,
Wyoming, Utah, New Mexico, Nevada and Idaho all have mean elevations
above 5.000 feet. (
http://en.wikipedia.org/wiki/List_of_U.S._states_by_elevation )
Wikipedia lists 12 US cities that would be below the required pressure.
(http://en.wikipedia.org/wiki/List_of_highest_United_States_cities_by_state).
Kenton, OK, might also be one to avoid these tests at during low
pressure days. http://www.csgnetwork.com/pressurealtcalc.html
Meteorologist Jeff Haby's site has some interesting pressure data:
/1086 mb (32.08 inches of mercury): Highest Ever Recorded//
//1030 mb (30.42 inches of mercury): Strong High Pressure System//
//1013 mb (29.92 inches of mercury): Average Sea Level Pressure//
//1000 mb (29.54 inches of mercury): Typical Low Pressure System//
//980 mb (28.95 inches of mercury): CAT 1 Hurricane or a very intense
mid-latitude cyclone//
//950 mb (28.06 inches of mercury): CAT 3 Hurricane//
//870 mb (25.70 inches of mercury): Lowest Ever Recorded (not including
tornadoes)//
/http://www.theweatherprediction.com/habyhints2/410/*
*Cortland Richmond
ka5s
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