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SG & Api

This document shows the relationship between specific gravity at 60/60°F, degrees API, and weight per gallon at 60°F for petroleum liquids. Specific gravity decreases as degrees API increases, so lighter liquids have a lower specific gravity and weight per gallon. The graph plots these three properties across a range of 10 to 80 degrees API to help correlate values.

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88 views1 page

SG & Api

This document shows the relationship between specific gravity at 60/60°F, degrees API, and weight per gallon at 60°F for petroleum liquids. Specific gravity decreases as degrees API increases, so lighter liquids have a lower specific gravity and weight per gallon. The graph plots these three properties across a range of 10 to 80 degrees API to help correlate values.

Uploaded by

mimostar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Specific Gravities at 60/60oF and Weights per Gallon at 60oF 1.

Corresponding to Degrees API


141.5 141.5
sp. gr. (60/60oF) = deg. API = -131.5
131.5 + deg. API sp. gr. (60/60oF)

10 20 30 40 50 60 70 80

8.2

1.0
8.0

.98
7.8

.96
7.6

.94
7.4

Pounds per gallon (lbm/gal)


.92
7.2

.90
7.0

.88
6.8
Specific gravity

.86
6.6

.84
6.4

.82
6.2

.80
6.0

.78
5.8

.76
5.6

.74

.72

.70

.68

.66

10 20 30 40 50 60 70 80

Degrees API June 73


revised April 97

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