Howsabout HFC-236fa - very similar properties to R114 but not banned. Dave -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jim Lux Sent: 20 September 2011 22:38 To: [email protected] Subject: Re: [time-nuts] Making a 10811 better
On 9/20/11 12:46 PM, J. Forster wrote: > Likely one of the Freons (TM) or Sulphur Hexafluoride. > > Tektronix used a Freon in their 40 KV High Voltage probes. The Vapor > pressure of some of those compounds is low at 70F, but they do have to > be sealed. > > Unfortunately, virtually all Freon useage has been banned by the EPA > (they are said to be "greenhouse gases") and the stuff in now almost > unobtanium. > > -John > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
