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ASTM D381 Existent Gum Content Tester
KN-381 Existent Gum Content Tester (Steam Method) conforms to ASTM D381 Standard Test Method for Gum Content by Jet Evaporation. When testing either aviation or motor gasoline, a 50±0.5ml quantity of fuel is evaporated under controlled conditions of temperature and flow of air. When testing aviation turbine fuel, a 50±0.5ml quantity of fuel is evaporated under controlled conditions of temperature an flow of steam. For aviation gasoline and aviation turbine fuel, the resulting residue is weighed and reported as milligrams per 100ml. For motor gasoline, the residue is weighed before and after extracting with heptane and the results reported as milligrams per 100ml.
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ASTM D381 Existent Gum Content Tester, Air Method
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 motor gasoline, the residue is weighed before and after extracting with heptane and the results reported as milligrams per 100ml.
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ASTM E659 Autoignition Temperature Tester
KN-659 Autoignition Temperature Tester conforms to ASTM E659 Standard Test Method for Autoignition Temperature of Chemicals. A small, metered sample of the product to be tested is inserted into a uniformly heated 500ml glass flask containing air at a predetermined temperature. The contents of the flask are observe in a dark room for 10min following insertion of the sample, or until autoignition occurs. Autoignition is evidenced by the sudden appearance of a flame inside the flask and by a sharp rise in the temperature of the gas mixture. The lowest internal flask temperature at which hot-flame ignition occurs for a series of prescribed sample volumes is taken to be the hot-flame autoignition temperature of the chemical in air at atmospheric pressure. Ignition delay times (ignition time lags) are measured in order to determine the ignition delay-ignition temperature relationship.
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ASTM D8288 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 into a test piece. Comparison between different operating conditions or various types of fluids can be made. The reportable quantity is the efficiency or mean average torque of a reference fluid divided by the mean average torque of the fluid of interest.
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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.
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GOST 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 operation is convenient, and the results are accurate
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ASTM D1287 PH Meter
KN-1287 PH Meter conforms to ASTM D1287 Standard Test Method for pH of Engine Coolants and Antirusts and ASTM D1121 Standard Test Method for Reserve Alkalinity of Engine Coolants and Antirusts. pH is a measure of the hydrogen ion concentration and indicates whether an engine coolant, or a solution of these compounds is acidic, alkaline, or neutral. The pH range includes values from 0 to 14. Values from 0 to 7 represent the acidic half of the scale. Values from 7 to 14 represent the alkaline or b
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ASTM D4059 GC for PCBs in Insulating Liquids
KN-4059 GC for PCBs in Insulating Liquids conforms to ASTM D4059 Standard Test Method for Analysis of Polychlorinated Biphenyls in Insulating Liquids by Gas Chromatography. This test method describes a quantitative determination of the concentration of polychlorinated biphenyls (PCBs) in electrical insulating liquids by gas chromatography. It also applies to the determination of PCB present in mixtures known as askarels, used as electrical insulating liquids.
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ASTM D7843 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.
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Analytical Balance
l Weighing units (g, ct, ozt, oz, gn, dwt, 1b) l Counting (Reference numbers 1/10/20/50/100) l Tare function over 100% of the capacity l Automatic calibration (external) l Below weighting on hook l Adjustable feed l Spirit level
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Carbon, Hydrogen and Nitrogen elements analyzer
KN-5373 Carbon, Hydrogen and Nitrogen elements analyzer conforms to ASTM D5291 Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants and ASTM D5373 Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke.
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Brookfield Viscometer
Using a coaxial center structure, using a small sample adapter, each measurement requires a very small sample size, temperature control quickly and accurately. It has many measuring parameters, rich display content, convenient operation, intuitive reading, high measuring precision, stable rotational speed, strong anti-interference performance, wide working voltage and so on. can replace the same type of imported instrument
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