Standards-based tools for blending engineers and formulation chemists. Pick a tool, compute inline — no reloads, no registration.
Correct lubricant volume and density between an observed temperature and the 60 °F (15.56 °C) reference, per API MPMS 11.1 / ASTM D1250.
Thermal expansion factor at 60 °F (lubricating-oil group):
α60 = K1 ÷ ρ60 with K1 = 0.34878, ρ60 in kg/m³ Volume Correction Factor (CTL):
ΔT = T_observed(°F) − 60
CTL = exp[ −α60 · ΔT · (1 + 0.8 · α60 · ΔT) ] density at T = ρ60 × CTL
volume at T = volume @ 60 °F ÷ CTLAPI MPMS 11.1 lubricating-oil constants K0=0, K1=0.34878, K2=0; valid for base density ≈ 0.801–1.164 g/cm³. Custody-transfer measurement applies the standard's temperature/density rounding procedure.
Our technical team can help with treat-rate optimisation, TBN targets, and additive selection — and send a free sample with TDS & COA.
Tell us what you need — pricing, a TDS and a sample option, back to you within one business day.
Need a physical sample shipped? Detailed sample request →