KN-381A Existent Gum Content Tester

KN-381A Existent Gum Content Tester (Air Method) conforms to ASTM D381 Standard Test Method for Gum Content by Jet Evaporation. When testing motor gasoline, a 50±0.5ml quantity of fuel is evaporated under controlled conditions of temperature and flow of air. For aviation gasoline and aviation turbine fuel, the resulting residue is weighedRead more >

KN-94 Saponification Number Of Petroleum Products

KN-94 Saponification Number of Petroleum Products conforms to ASTM D94 Standard Test Method for Saponification Number of Petroleum Products. Petroleum products can contain additives that react with alkali to form metal soaps. Fats are examples of such additives. Also, certain used engine oils, especially from turbine or internal combustion engines, can contain chemicals that will similarly react with alkali. The saponification number expresses the amount of base that will react with 1g of sampleRead more >

KN-1478 Low-Temperature Torque Tester

KN-1478 Low-Temperature Torque Tester conforms to ASTM D1478 Standard Test Method for Low-Temperature Torque of Ball Bearing Grease. This test method was developed using greases having very low torque characteristics at -54℃. Specifications for greases of this type commonly require testing at this temperature. Specifications for greases of other types can require testing at temperatures from -73℃ to -18℃. This test method has proved helpful in the selection of greases for low-powered mechanismRead more >

KN-8288 Automatic Tapping Torque Testing System

KN-8288 Automatic Tapping Torque Testing System conforms to ASTM D8288 Standard Test Method for Comparison of Metal working Fluids Using a Tapping Torque Test Machine. This test method can be used to predict the comparative lubricating properties of a metalworking fluid (MWF). Fluids that produce lower torques or higher efficiencies are predicted to have better machining characteristics. The method is applicable to all tap types, machining speeds, alloys and coatings that can be fabricated intoRead more >

KN-2619 Apparatus for Hydrolytic Stability of Hydraulic Fluids

KN-2619 Apparatus for Hydrolytic Stability of Hydraulic Fluids conforms to ASTM D2619 Standard Test Method for Hydrolytic Stability of Hydraulic Fluids (Beverage Bottle Method). This test method differentiates the relative stability of hydraulic fluids in the presence of water under the conditions of the test. Hydrolytically unstable hydraulic fluids form acidic and insoluble contaminants which can cause hydraulic system malfunctions due to corrosion, valve sticking, or change in viscosity of thRead more >

KN-SY Circulating Water Bath

KN-SY Circulating Water Bath can be widely used in drying, concentration, distillation, impregnated chemical reagents, impregnated drugs and biological products, and can also be used for constant temperature heating in water baths and other temperature tests, and is an essential tool for biology, genetics, viruses, aquatic products, environmental protection, medicine, health, biochemical laboratories, analysis rooms, education and scientific research.Read more >

KN-7143 Ultimate Strength and Thermostrengthening Tester

KN-7143 Ultimate Strength and Thermostrengthening Tester conforms to GOST 1743 Greases. Method for Determination of Ultimate Strength and Thermostrengthening. It is mainly used to measure the pressure of the grease when it is displaced in the threaded pipe of the plasticizer at the test temperature, and convert it into a strength limit value, which is expressed as Pa. The appearance design of the grease strength limit tester is beautiful and generous, the structure design is reasonable, the operRead more >

KN-2570 Simulated Service Corrosion Tester

KN-2570 Simulated Service Corrosion Tester conforms to ASTM D2570 Standard Test Method for Simulated Service Corrosion Testing of Engine Coolants. An engine coolant is circulated for 1064h at 88℃ (190℉) in a flow loop consisting of a metal reservoir, an automotive coolant pump, an automotive radiator, and the connecting rubber hoses. Test specimens representative of engine cooling system metals are mounted inside the reservoir, which simulates an engine cylinder block. At the end of the test perRead more >

KN-7843 Membrane Patch Colorimetry

KN-7843 Membrane Patch Colorimetry conforms to ASTM D7843 Standard Test Method for Measurement of Lubricant Generated Insoluble Color Bodies in In-Service Turbine Oils using Membrane Patch Colorimetry. Insoluble deposits are extracted from an in-service turbine oil sample using a 47mm, 0.45μm membrane nitrocellulose patch. The color of the patch is then analyzed using a spectrophotometer and the results are reported as a △E value in the CIELAB scale.Read more >

KN-6560 Apparatus for Paraffin, Resins and Asphaltenes Contents in Crude Oil

KN-6560 Apparatus for Paraffin, Resins and Asphaltenes Contents in Crude Oil in Crude Petroleum and Petroleum Products conforms to ASTM D6560 Standard Test Method for Determination of Asphaltenes (Heptane Insolubles) in Crude Petroleum and Petroleum Products and SY/T 7550 Determination of Paraffin, Resins and Asphaltenes Contents in Crude Oil. Asphaltenes are the organic molecules of highest molecular mass and carbon-hydrogen ratio normally occurring in crude petroleum and petroleum products conRead more >