Quaker Quintolubric® 888-68 Fire Resistant HFD-U Hydraulic Fluid

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Quaker Quintolubric® 888-68 Fire Resistant HFD-U Hydraulic Fluid
Categories:	Fluid
Material Notes:	Benefits: Global formulation Excellent shear stability Best-in-class oxidation stability Environmentally friendly Applications: QUINTOLUBRIC® 888-68 was designed to replace anti-wear, mineral oil-based hydraulic fluids used in applications where fire hazards exist. QUINTOLUBRIC® 888-68 can also be used in environmentally sensitive hydraulic applications without compromising the overall hydraulic system operations. This fluid does not contain water, mineral oil, or phosphate ester, and is based on high-quality, synthetic, organic esters and carefully selected additives to achieve excellent hydraulic fluid performance. QUINTOLUBRIC® 888-68 offers the lubrication level of premium, antiwear hydraulic oils, and can be used with hydraulic components from all major manufacturers. Information provided by Quaker
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Physical Properties	Metric	English	Comments

Density	0.920 g/cc @Temperature 15.0 °C	0.0332 lb/in³ @Temperature 59.0 °F	ASTM D1298
Viscosity Measurement	185	185	Index; ASTM D2270
Kinematic Viscosity	135 cSt	135 cSt	ASTM D445
Viscosity Measure	554 cSt @Temperature 0.000 °C	554 cSt @Temperature 32.0 °F	Kinematic; ASTM D445
Kinematic Viscosity at 40°C (104°F)	68 cSt	68 cSt	ASTM D445
Kinematic Viscosity at 100°C (212°F)	12.5 cSt	12.5 cSt	ASTM D445
Vapor Pressure	4.27e-9 bar @Temperature 20.0 °C	0.00000320 torr @Temperature 68.0 °F	02551
	1.00e-8 bar @Temperature 66.0 °C	0.00000750 torr @Temperature 151 °F	02551

Chemical Properties	Metric	English	Comments
Total Acid Number	2.0	2.0	[mg KOH/g}; ASTM D974

Mechanical Properties	Metric	English	Comments
Bulk Modulus	12.9 GPa @Pressure 20.7 MPa	1870 ksi @Pressure 3000 psi

Electrical Properties	Metric	English	Comments
Dielectric Breakdown	30000 V	30000 V	ASTM D887

Thermal Properties	Metric	English	Comments
CTE, linear	6.00 µm/m-°C	3.33 µin/in-°F	ASTM D1903
Specific Heat Capacity	2.05 J/g-°C	0.490 BTU/lb-°F	ASTM D2766
Thermal Conductivity	0.167 W/m-K @Temperature 19.0 °C	1.16 BTU-in/hr-ft²-°F @Temperature 66.2 °F	ASTM D2717
Pour Point	<= -30.0 °C	<= -22.0 °F	ASTM D97
Flash Point	304 °C	579 °F	ASTM D92
Ignition Temperature	>= 400 °C	>= 752 °F	Autoignition; DIN 51794
	>= 450 °C	>= 842 °F	Hot Manifold; ISO 20823

Descriptive Properties
Air Release	7 min		ASTM D3427
Appearance	Yellow to amber fluid
Dry TOST	800 hrs		ASTM D943
Fire Point	360°C		ASTM D92
Foam Test	50-0 ml-ml		@ 25°C, Sequence I, ASTM D892
Gear Lubrication	>12 FZG load stage		DIN 51354-2
Pump Test	<5 mg wear		ASTM D2282
Water Separability	42-38-0 ml-ml-ml		30 min, ASTM D1401

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

WQUAK008 / 184994

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