I was wondering if anyone knew, offhand, the weight of a 12 pound container of R-12 when it is empty.
I ran across an old container of this size that belonged to my father-in-law (I've never seen a container of R-12 in this size, only in 30 pound and 12 or 14 oz. containers). The brand name is Genetron 12 by Allied Chemical.
I'm trying to calculate approximately how much R-12 is remaining in it.
Thought that perhaps some of the "old timers" who worked with this stuff a lot in the past might know.
For a guess at approximately how much is left, you could observe the liquid level by making the container and contents cold in a refrigerator, then set it out in humid summer air. A clear demarcation of "sweat" should occur at the line corresponding to the level.
Edited: Mon June 21, 2010 at 2:13 PM by mk378
Thanks for the ideas, guys.
mk378, I hadn't thought about putting the cylinder in a fridge, then checking for condensation, but that would give me a pretty good idea of the volume remaining in the cylinder.
69-er, if an empty 30-pounder weighs about 5 pounds, that tells me that I could expect this 12-pounder to weigh considerably less when empty.
As I mentioned earlier, I wasn't even aware that there was such a thing as a 12-pounder. I just need enough R-12 to have someone top off the system in an '88 Grand Marquis, and thought that, rather going with a retrofit this time around, I'd use up the rest of the R-12 first.
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