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Hydrometer Correction
Temperature-Corrected Specific Gravity
Measured Gravityhydrometer reading
Sample Temperaturetemp when you took reading
°C
Calibration Tempdefault 20 °C
°C
Corrected Gravity
1.0492
Measured
1.0480
Correction+1.2 pts (+0.0012)
−10 pts+10 pts
Your sample (25.0 °C) was warmer than calibration (20.0 °C). Warm liquid is less dense, so the hydrometer sank too deep and read low. The corrected value is higher.
SG_corr = SG_meas × ρ(T_sample) / ρ(T_cal) · ASBC water density polynomial · T in °F