===============+============= Temperature | Corrections -------+-------+-------+----- Deg. F.|Deg. C.|Sp. Gr.|Brix. -------+-------+-------+----- 50 | 10.0 | .0017 | .38 51 | 10.6 | .0016 | .36 52 | 11.1 | .0016 | .35 53 | 11.7 | .0015 | .33 54 | 12.2 | .0014 | .31 | | | 55 | 12.8 | .0014 | .30 56 | 13.3 | .0013 | .28 57 | 13.9 | .0012 | .26 58 | 14.4 | .0011 | .24 | | | 59 | 15.0 | .0010 | .22 60 | 15.6 | .0009 | .20 61 | 16.1 | .0009 | .18 62 | 16.7 | .0008 | .16 63 | 17.2 | .0007 | .13 | | | 64 | 17.8 | .0006 | .11 65 | 18.3 | .0004 | .08 66 | 18.9 | .0003 | .05 67 | 19.4 | .0002 | .03 69 | 20.6 | .0002 | .03 70 | 21.1 | .0003 | .05 71 | 21.7 | .0004 | .08 72 | 22.2 | .0006 | .11 73 | 22.8 | .0007 | .15 | | | 74 | 23.3 | .0009 | .18 75 | 23.9 | .0011 | .21 76 | 24.4 | .0012 | .24 77 | 25.0 | .0013 | .28 78 | 25.6 | .0015 | .32 | | | 79 | 26.1 | .0017 | .35 80 | 26.7 | .0018 | .39 81 | 27.2 | .0019 | .42 82 | 27.8 | .0021 | .46 83 | 28.3 | .0023 | .49 | | | 84 | 28.9 | .0024 | .54 85 | 29.4 | .0026 | .58 86 | 30.0 | .0027 | .62 87 | 30.6 | .0029 | .66 88 | 31.1 | .0031 | .70 -------+-------+-------+----- [19] These temperature corrections are for a Brix instrument standardized for 20°C. There are Brix hydrometers on the market standardized for 17.5°C. Temperature corrections for a Brix hydrometer standardized at this temperature may be obtained by correcting to 20° by means of the above table (for instrument graduated at 20°C.) and adding to this corrected reading 0.12. For instance suppose the reading for a 17.5° instrument is 7.00 at 25°C. The correction from the above table will be .28 or a total of 7.28. Adding .12 to this gives a corrected reading of 7.40. If the reading is 7.00 at 15°C. the correction from the above table amounts to .22 (to be subtracted) giving 6.78. Adding 0.12 to this gives the corrected reading of 6.90. TABLE 9.—_Equivalent Volumes of Pulp of Different Degrees of Concentration_