[Diy_efi] R-12 & R-134a Trivia

Thu Jun 27 05:23:06 GMT 2002

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I couldn't find the source post for this reply, but what is the =
difference between R-12 and R-134a?...and R-502, for that matter?

I assume there was some CDC ruling, but what was the source for this =
post and what does it have to do with DIY-EFI?

Thanks,

Bob
  ----- Original Message -----=20
  From: AnalogWz at aol.com=20
  To: diy_efi at diy-efi.org=20
  Sent: Wednesday, June 26, 2002 2:04 PM
  Subject: Re: [Diy_efi] R-12 & R-134a Trivia

  DuPont developed the two refrigerants simultaneously. R-134a was the =
second choice.=20

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<DIV><FONT face=3DArial size=3D2>I couldn't find the source post for =
this reply, but=20
what is the difference between R-12 and R-134a?...and R-502, for that=20
matter?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I assume there was some CDC ruling, but =
what was=20
the source for this post and what does it have to do with =
DIY-EFI?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Bob</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3DAnalogWz at aol.com =
href=3D"mailto:AnalogWz at aol.com">AnalogWz at aol.com</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Ddiy_efi at diy-efi.org=20
  href=3D"mailto:diy_efi at diy-efi.org">diy_efi at diy-efi.org</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, June 26, 2002 =
2:04=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [Diy_efi] R-12 =
&amp; R-134a=20
  Trivia</DIV>
  <DIV><BR></DIV><FONT face=3Darial,helvetica><FONT lang=3D0 =
face=3DArial size=3D2=20
  FAMILY=3D"SANSSERIF">DuPont developed the two refrigerants =
simultaneously.=20
  R-134a was the second choice.</FONT> =
</FONT></BLOCKQUOTE></BODY></HTML>

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