PRODUCT DATA SHEET
Nyfrost 68
Nyfrost 68 is a hydrotreated naphthenic ISO VG 68 base oil to use as a refrigeration fluid and is
characterized by having very low pour point, good cold flowing and high thermal and chemical stability.
This product can be used in refrigerators using refrigerants such as hydrocarbons, ammonia and CFC's, in
screw, gear, and reciprocating compressors up to – 42 °C
The benefits of using naphthenic base oils for this application are the high solvent power and the very
good low temperature properties that are leading to good floc points for the refrigerant-oil mixture.
Nyfrost 68 is a hydrotreated naphthenic base oil, classified as an API Group V base oil. The viscosity at
40°C is 68 cSt for this product.
CHARACTERISTICS UNIT TEST METHOD SPECIFICATION LIMITS TYPICAL DATA
ASTM MIN MAX
Physical
Density, 15°C g/cm3 D 4052 0.904 0.924 0.914
Viscosity, 40°C mm2/s (cSt) D 445 61.2 74.8 68
Viscosity, 100°C mm2/s (cSt) D 445 6.6
Flash Point, COC °C D 92 202
Flash Point, PM °C D 93 174 196
Pour Point °C D 97 -24 -38
Colour D 1500 1.5 <1.0
Floc point - R12 °C DIN 51351 -32
Chemical
Copper Strip, 100°C, 3 hrs D 130 1 1
Sulphur % D 2622 0.06
Neutralization value mg KOH/g D 974 0.03 <0.01
Hydrocarbon Type Analysis IR-Method
CA % 15
Carbon-Type Analysis D 2140
CA % 12
C
N % 40
C
P % 48
Electrical
Breakdown voltage kV IEC 156 40 >45
Nyfrost 68 is a naphthenic based refrigerating oil meeting specification BS 2626: 1992. Severely Hydrotreated Base Oil
Issuing date: 2014-08-16
