|  | Test Method | HyJet IV-A plus (1) | Limits | 
  | Kinematic Viscosity, cSt | ASTM D 445 |  |  | 
  | at -53.9ºC (-65ºF) |  | 1320 | 2000 max | 
  | at -26.1ºC (-15ºF) |  | 130 | 135 max | 
  | at 37.8ºC (100ºF) |  | 10.6 | 10.0 -11.0 | 
  | at 98.9ºC (210ºF) |  | 3.6 | 3.35 - 3.75 | 
  | at 127.6ºC (260ºF) |  | 2.6 | 1.5 min | 
  | Viscosity Index | ASTM D 2270 | 280 |  | 
  | Shear Stability, % Viscosity Drop at 40ºC | ASTM D 5621 | 22 |  | 
  | Pour Point, ºC (ºF) | ASTM D 97 | ?-62 (-80) | -62 (-80) max | 
  | Specific Gravity at 25ºC/25ºC (77ºF/77ºF) | ASTM D 4052 | 0.996 | 0.990 -1.002 | 
  | Density at 15.6ºC (60ºF), g/mL (lb/gal) | ASTM D 4052 | 0.999 (8.35) |  | 
  | Acid Number, mg KOH/g | ASTM D 974 | 0.04 | 0.1 max | 
  | Water, Karl Fischer, mass % | ASTM D 6304 | 0.1 | 0.2 max | 
  | Flammability |  |  |  | 
  | Flash Point, ºC (ºF) | ASTM D 92 | 176 (349) | 160 (320) min | 
  | Fire Point, ºC (ºF) | ASTM D 92 | 188 (370) | 177 (350) min | 
  | Autoignition Point, ºC (ºF) | ASTM D 2155 | ?427 (800) | 400 (752) min | 
  | Foaming Tendency/Stability, mL foam/sec to collapse | ASTM D 892 |  |  | 
  | Sequence I |  | 27/15 | 250/100 max | 
  | Sequence Il |  | 23/13 | 150/50 max | 
  | Sequence Ill |  | 28/16 | 450/250 max | 
  | Particle Count, NAS 1638 Class | Auto Counter | 4 | 7 max | 
  | Chemical Elements, ppm |  |  |  | 
  | Calcium |  | 103 | 120 max | 
  | Potassium |  | 38 | 48 max | 
  | Chlorine |  | 10 | 50 max | 
  | Sodium |  | 1 | 15 max | 
  | Sulfur |  | 224 | 350 max | 
  | Four-Ball Wear, Scar diameter at 75ºC/600rpm/1hour, mm | Modified ASTM D 4172  |  |  | 
  | 4 kg |  | 0.22 | 0.45 max | 
  | 10 kg |  | 0.33 | 0.50 max | 
  | 40 kg |  | 0.73 | 0.55 ? 0.85 | 
  | Electrical Conductivity at 20ºC, microSiemens/cm |  | 1.4  | 0.5 min  | 
  | Bulk Modulus, Isothermal secant at 100ºF/3000 psi, psi |  | 210,000 |  | 
  | Thermal Conductivity at 40ºC, cal/sec/cm2/ºC (Btu/hr/ft2/ºF) |  | 33x10^-5 (0.0799)  |  | 
  | Coefficient of Thermal Expansion, 25 to 100ºC, per ºC (per ºF) |  | 0.00086 (0.00048) |  | 
  | Specific Heat Capacity at 40 ºC, cal/g/ºC (same as Btu/lb/ºF) |  | 0.41 |  |