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Neste Therm S 8
Synthetic heat transfer oil

PERFORMANCE CLAIMS
ISO-L-Q

DESCRIPTION
Neste Therm S 8 is a fully synthetic heat-transfer oil with a lower vapour pressure and higher flash point than mineral oils. It stands continuous high temperatures without oxidation and forms no carbon deposits or sludge in a correctly designed system. The specific heat of Neste Therm S 8 is higher than that of mineral oils and it can be used even with start-up at low temperatures.

FEATURES AND BENEFITS
- Good thermal stability
- Excellent oxidation stability
- Low vapour pressure

TYPICAL CHARACTERISTICS
Viscosity Index 140 ASTM D2270
Viscosity @ 320 °C 0,78 ASTM D445 cSt ASTM D445
Viscosity @ 40 °C 47 cSt ASTM D445
Viscosity @ 200 °C 1,92 cSt ASTM D445
Viscosity @ 100 °C 7,9 cSt ASTM D445
Acid Number (TAN) <0,03 mg KOH/g ASTM D664
Pour Point −57 °C ASTM D5949
Flash Point (COC) 262 °C ASTM D92
Density 15 °C 834 kg/m³ ASTM D4052

APPLICATIONS
Neste Therm S 8 oil is used as a heat transfer fluid. The suitable operating temperature range is -40°C - +300 °C..