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Re: Indiana Ken and vapor pressure


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Posted by John in la on February 23, 2013 at 06:02:42 from (184.38.220.103):

In Reply to: Indiana Ken and vapor pressure posted by MarkB_MI on February 23, 2013 at 03:58:19:

I missed the past couple days so had to go back and see the comments you guys added to the post.

I can say you guys are getting way over my head on this but this chart provided by the EPA may give you some insite.

RVP is meassure at 100°F
With a RVP of 14.7 is it really 14.7 or is it 14.7 plus atmospheric pressure of 14.7 for a total of 29.4
So draw a line from 100° threw 14.7 using line S3 (motor gasoline) and what (absolute) answer do you come up with. I think it is alot closer to 14.7 rather than 29.4
Using the chart also shows why we can use gasoline with a RVP around 14 in the winter time and not in the summer time.

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