IRS Alcohol Hydrometer Corrections
Table 1970A U.S. Internal Revenue Service
Temperature Correction Table for Alcohol Hydrometers
calibrated at 60 °F
Proof Reading |
51 to 59 °F | 61 to 70 °F | 71 to 80 °F | 81 to 90 °F |
Add |
Subtract |
Subtract |
Subtract |
|
10 |
0.08 |
0.13 |
0.16 |
0.19 |
20 |
0.12 |
0.16 |
0.20 |
0.23 |
30 |
0.20 |
0.23 |
0.25 |
0.26 |
40 |
0.29 |
0.30 |
0.30 |
0.30 |
50 |
0.37 |
0.35 |
0.35 |
0.35 |
60 |
0.42 |
0.39 |
0.38 |
0.38 |
70 |
0.41 |
0.40 |
0.41 |
0.41 |
80 |
0.40 |
0.40 |
0.41 |
0.41 |
90 |
0.38 |
0.39 |
0.39 |
0.40 |
100 |
0.37 |
0.37 |
0.37 |
0.38 |
110 |
0.36 |
0.36 |
0.37 |
0.38 |
120 |
0.34 |
0.35 |
0.36 |
0.36 |
130 |
0.33 |
0.34 |
0.35 |
0.35 |
140 |
0.32 |
0.33 |
0.34 |
0.34 |
150 |
0.31 |
0.32 |
0.32 |
0.33 |
160 |
0.29 |
0.31 |
0.31 |
0.32 |
170 |
0.28 |
0.29 |
0.29 |
0.30 |
180 |
0.25 |
0.26 |
0.27 |
0.28 |
190 |
0.21 |
0.22 |
0.24 |
0.25 |
200 |
---- |
0.17 |
0.18 |
0.20 |