Hydrometer Temperature Correction - Calculator - Vinolab

Home » Alcohol Hydrometer-temperature Correction Table » Hydrometer Temperature Correction - Calculator - Vinolab

Maybe your like

Wine analitical and consulting services
  • |
  • Hrvatski
  • English
Calculator Home Calculator Hydrometer Temperature Correction Hydrometer Temperature Correction Actual reading Reading in? °BrixSG Reading temp (°C) Calibration temp (°C) Corrected reading

Details: The density of water changes predictably with temperature and so it is possible (and important) to correct readings taken at temperatures the hydrometer is not calibrated for. Most hydrometers are calibrated to 20°C, but some are calibrated to 15°C - any good hydrometer will have the calibration temperature marked. This calculator, when working with a hydrometer calibrated to 20°C, is accurate over the approximate range 0-60°C, and when calibrated to 15°C, approximately 0-55°C.

The hydrometer temperatre correction for SG is performed with this expression: corrected-reading = r * ((1.00130346 - (0.000134722124 * t) + (0.00000204052596 * t2) - (0.00000000232820948 * t3)) / (1.00130346 - (0.000134722124 * c) + (0.00000204052596 * c2) - (0.00000000232820948 * c3))) Where: r = reading c = calibration temperature This expression is based on °F, so the temperatures are first converted. For °Brix, the expression used is: correction = 0.0000006907947565 * temp4 + 0.0000008650898228 * temp3 * apb + 0.0000002111610273 * temp2 * apb2 - 0.000000420289855 * temp * apb3 + 0.0000000000000000003388131789 * temp4 - 0.00002646880494 * temp3 - 0.00003812273795 * temp2 * apb + 0.00002132555958 * temp * apb2 + 0.0000003140096619 * apb3 + 0.001470413886 * temp2 + 0.0003854292164 * temp * apb - 0.00001254869767 * apb2 + 0.04799327348 * temp + 0.0002013056055 * apb - 0.002157758291 Where: correction = is the correction factor, added to the observed °Brix temp = is the temperature difference from calibration (that is, reading temperature - calibration temperature) apb = is the apparent °Brix, as read on the hydrometer

VinoCalc by Jonathan Musther - [email protected]

Vinolab on Facebook
Vinolab d.o.o. - The final recipient of the financial instrument co-financed from the European Regional Development Fund under the Operational Program „Competitiveness and Cohesion“ You need a reliable wine analysis, sensoric evaluation or oenological consulting? Send inquiry

Labora

Wine analytics, consulting, sensory evaluation, oenological products

Address

Delnička 8b (Rudeš) 10000 ZagrebCroatia

View map

Contact

+385 1 5544 811

+385 99 244 6266 SEBASTIJANA +385 91 6168 968 ANA

[email protected]

Info

Worktime: (pon.-pet.) 8:00 - 16:00 h

OIB: 84304341499 MB: 02426862

IBAN: HR4323600001102269378 SWIFT: ZABAHR2X

© Copyright 2018 Vinolab. All Right Reserved. Powered by VannaCMS

Tag » Alcohol Hydrometer-temperature Correction Table