产品目录

Unsulfonated Residue Tester

For the determination of unsulfonated residue in plant spray oils of petroleum origin and applies only to the petroleum oil content. Provides a measure of th...

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Conforms to the specifications of: ASTM D483

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Capacity: Four (4) Sulfonation Flasks

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Boiling Water Bath Temperature: 100°C

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Water Bath Temperature: 25°C ± 0.5°C

Extraction Equipment

Extraction processes (more precisely: solid-liquid extraction process) are used to separate components from a solid sample. The objective of all extraction p...

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Soxhlet Extraction - The standard extraction method is the Soxhlet method. Koehler offers a variety of options to fulfill all the various requirements in everyday laboratory practices: Extractor sizes range from 30 mL to 1000 mL. Compact apparatus wi

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Twisselmann Hot Extraction - In the Twisselmann process, the vessel in which the extraction thimble is placed is open at the bottom; the extract immediately flows back into the distillation flask. The extraction thimble is constantly rinsed by the so

Dual Corrosion Test Apparatus

Provides a laboratory screening procedure for evaluating the corrosion preventing capabilities of engine coolants under heat transfer conditions that may be ...

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Provides a laboratory screening procedure for evaluating the corrosion preventing capabilities of engine coolants under heat transfer conditions that may be encountered in aluminum cylinder head engines. Corrosion preventing effectiveness is determin

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Conforms to ASTM D4340 specifications

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Operating range to 150°C

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Consists of two heat-transfer corrosion cells with temperature and pressure controls for evaluating engine coolant samples in accordance with ASTM D4340. Maintains aluminum alloy specimens at constant temperature in the presence of 500 mL samples. Ea

Oil-Solvent Extractables Content Apparatus

Oil content or solvent extractables in wax can affect key properties such as strength, hardness, melting point, etc. The sample is dissolved in methyl-ethyl ...

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Conforms to ASTM D721, D3235 and related specifications

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Determines oil content or solvent extractables content in petroleum waxes in accordance with ASTM specifications. Includes Filter Stick Assembly; Cooling Bath; Air Pressure Regulator; and Evaporation Cabinet.

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Filter Stick and Assembly – Filters petroleum wax samples per ASTM specifications. Consists of 10mm diameter sintered glass filter stick with air pressure inlet tube and delivery nozzle and a 25x170mm test tube. Inserts in Cooling Bath.

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Evaporation Cabinet – Thermostatically heated cabinet evaporates solvent from filtrate per specifications. Accommodates four weighing bottles. Delivers air stream vertically downward into bottles through glass jets. Manifold assembly is adjustable fo

Wax Melting Point Apparatus

Periodic temperature measurements are taken of a sample of molten wax as it is cooled in an air bath. When the wax solidifies, a plateau in the cooling curve...

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Periodic temperature measurements are taken of a sample of molten wax as it is cooled in an air bath. When the wax solidifies, a plateau in the cooling curve occurs, indicating the melting point (cooling curve) of the sample.

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Conforms to ASTM D87 and related specifications

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Cools molten wax samples in accordance with ASTM and related specifications. Consists of nickel-plated air and water bath assembly with removable cover. Supports test tube in a vertical position in the air bath.

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Conforms to the specifications of: ASTM D87; IP 55; ISO 3841; DIN 51570; FTM 791-1402; NF T 60-114

Residue and Oil Distillate Determination Apparatus

Determines residue and oil distillate in emulsified asphalt for research, quality control and specification acceptance purposes.

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Conforms to ASTM D244 and AASHT0 T59 specifications

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K31900 Dimensions: 1.3 Cu. ft.

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K31956 Dimensions: 2.8 Cu. ft.

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250-000-07F ASTM 7F Thermometer - Range: 30 to 580°F

Float Test Apparatus

Provides a measure of the consistency of bituminous materials, including asphalts and tar products.

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Conforms to ASTM D139, AASHTO T50 and ANS A37.2 specifications

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Conforms to the specifications of: ASTM D139, AASHTO T50 and ANS A37.2 specifications

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250-000-15F ASTM 15F Thermometer - Range: 30 to 180°F

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250-000-15C ASTM 15C Thermometer - Range: –2 to +80°C

Loss on Heat / Rolling Thin Film Oven

Determines the effect of heat and air on a moving film of asphalt to serve as an indicator of approximate change in properties during conventional hot-mixing...

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Conforms to the specifications of: ASTM D2872; AASHTO T240

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Automatic Over-Temperature Switch

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Double-walled electrically heated convection oven for rolling thin film oven tests on asphalts. Incorporates all required features per ASTM specifications, including: door with double-pane viewing window; symmetrical top and bottom vents; air plenum;

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Conforms to the Specifications of: ASTM D2872; AASHTO T240

Loss on Heat / Thin Film Oven

Determines the effect on asphaltic materials of heating in an oven under prescribed conditions. The results are reported in terms of change in sample mass an...

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Conforms to ASTM D6, D1754; Specification E145, Type 1B; AASHTO T47, T179, BS2000

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ASTM D6, D1754; Specification E145, Type 1B; AASHTO T47, T179, BS2000

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Temperature Range: to 356°F (180°C)

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Dimensions: 41x35x38 in. (104.1x88.9x96.5 cm)

Pressure Aging Vessel

For accelerated aging (oxidation) of asphalt binders by means of pressurized air and elevated temperature. This is intended to simulate the type of changes w...

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For accelerated aging (oxidation) of asphalt binders by means of pressurized air and elevated temperature. This is intended to simulate the type of changes which occur in asphalt binders during in-service oxidative aging but may not accurately simula

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Conforms to ASTM D6521, AASHTO R28, EN14769

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ASTM D6521; AASHTO R28; EN14769

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Temperature Range: 90°C to 110°C (194°F to 230°F)

Bending Apparatus

Determines the breaking point of solid and semi-solid bitumens. A thin steel plaque is coated with the sample and flexed in a bending apparatus at descending...

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Determines the breaking point of solid and semi-solid bitumens. A thin steel plaque is coated with the sample and flexed in a bending apparatus at descending temperatures until cracks appear in the sample coating.

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Dimensions: 24x20x18 in. (61.0x50.8x45.7 cm)

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250-000-33C ASTM 33C Thermometer. Range: –38 to + 42°C

Softening Point Apparatus

The sample is cast in shouldered rings and heated at a controlled rate under the weight of a steel ball. The softening point is the temperature at which the ...

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The sample is cast in shouldered rings and heated at a controlled rate under the weight of a steel ball. The softening point is the temperature at which the bitumen disks soften and sag downward a specified distance.

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Conforms to ASTM D36 and related specifications

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ASTM D36, E28; AASHTO T53; IP 58, 198; NF T 66-008

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Dimensions: 1.5 Cu. ft.

Semi-Automatic Ductility Testing Machine

Determines the ductility of a bituminous material by measuring the distance in which a sample will elongate before breaking when two ends of a briquet specim...

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Determines the ductility of a bituminous material by measuring the distance in which a sample will elongate before breaking when two ends of a briquet specimen of the test material are pulled apart at a specified speed and temperature. Elastic recove

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Conforms to ASTM D113, D6084 and related specifications

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Standard and Constant Temperature Models available

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Constant Temperature model equipped with Lexan Cover for enhanced temperature stability

Lincoln Ventmeter

The K95400 Lincoln Ventmeter evaluates the ventability of grease, which is useful in determining by consistency what type of greases can be used in a central...

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Dimensions: 20x16x16 in. (50.8x40.6x40.6 cm)

Oil Separation Apparatus - Constant Temperature Air Cabinet

Determines the tendency of a lubricating grease to separate oil during storage in a 35 lb pail. The sample is placed on a sieve inside a special test cell an...

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Determines the tendency of a lubricating grease to separate oil during storage in a 35 lb pail. The sample is placed on a sieve inside a special test cell and subjected to 0.25psi (1.72kPa) air pressure at constant temperature. Any oil that bleeds fr

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Conforms to ASTM D1742 and related specifications

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Controls temperature and air pressure

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ASTM D1742, FTM 791-322

Oil Separation Apparatus

Provides a measure of the stability of lubricating grease towards oil separation during storage.

Oil Separation Apparatus

Determines the tendency of oil and lubricating grease to separate at elevated temperature.

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Determines the tendency of oil and lubricating grease to separate at elevated temperature.

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Conforms to ASTM D6184 and FTM 791-321 specifications

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Consists of 60 mesh nickel gauze cone with wire handle, tall form 200mL beaker and cover with hook. The sample is placed in the wire gauze cone and weight loss is determined after heating at test temperature for specified time period. Withstands test

Digital Water Spray Apparatus

Evaluates the ability of a lubricating grease to adhere to a metal surface when subjected to a direct water spray under controlled conditions. The percentage...

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Conforms to ASTM D4049 specifications

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ASTM D4049 Circulation System

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Temperature Control Stability: ±1°F (±0.5°C)

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Dimensions: 35x25x38 in. (88.9x63.5x96.5 cm)

Water Washout Tester

A grease sample is packed in a ball bearing and subjected to a steady water stream under controlled test conditions. The percentage of grease washed out in a...

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Conforms to ASTM D1264, D4950 and related specifications

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Conforms to the specifications of: ASTM D1264, D4950; IP 215; FTM 791-3252

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Temperature Control: ±1°F (±0.5°C) sensitivity

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Dimensions: 26x20x28 in. (66.0x50.8x71.1 cm)

High Temperature Wheel Bearing Grease Tester

Evaluates the high-temperature stability of automotive wheel bearing greases in a modified automotive front wheel hub-spindle-bearings assembly. The ASTM D35...

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Evaluates the high-temperature stability of automotive wheel bearing greases in a modified automotive front wheel hub-spindle-bearings assembly. The ASTM D3527 Life Performance test employs severe conditions – 25 lbf (111N) thrust load, 1000rpm, 160°

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Conforms to ASTM D3527, D4290 and D4950 specifications

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ASTM D3527, D4290, D4950

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Timer: on/off cycle and real time Chamber Temperature: °C Spindle Temperature: °C Motor rpm: 0-1725rpm Motor Torque: current draw Elapsed Time: 9999.9 hr. Maximum Temperature: 177°C (350°F)

Leakage Tendencies Tester

Evaluates the tendency of automotive wheel bearing grease to separate oil and/or grease under prescribed laboratory conditions. The test is performed at elev...

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Evaluates the tendency of automotive wheel bearing grease to separate oil and/or grease under prescribed laboratory conditions. The test is performed at elevated temperature in a modified automotive spindle-hub assembly rotated at 660rpm. Any leakage

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Conforms to ASTM D1263 (withdrawn 2010) and FTM 791-3454 specifications

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Microprocessor programmable high accuracy temperature control

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ASTM D1263 (withdrawn 2010); FTM 791-3454

Low Temperature Torque Apparatus

Significant for the design and specification of greases for low temperature service, the low temperature torque test measures the extent to which a grease sa...

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Significant for the design and specification of greases for low temperature service, the low temperature torque test measures the extent to which a grease sample retards rotation of a bearing assembly at the test temperature.

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Mechanically refrigerated, with standard –65°F (–54°C) operating range

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Optional cooling range to –100°F (–73°C)

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Conforms to ASTM D1478, D4693 and D4950 specifications

Grease Mobility Apparatus

Determines the resistance of lubricating grease to flow under prescribed conditions. Mobility is measured in grams per second by pumping the sample through a...

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Determines the resistance of lubricating grease to flow under prescribed conditions. Mobility is measured in grams per second by pumping the sample through a standardized SOD pressure viscometer at controlled temperature and pressure.

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U.S. Steel Method; ASTM Draft Method

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Test temperatures as low as –30°F (–34.4°C)

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Minimum Temperature: –30°F (–34.4°C)

Pressure Viscometer

Apparent viscosity is used to evaluate pumpability and handling characteristics of greases and is also suitable for analysis of adhesives, sealants and other...

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Conforming to ASTM D1092 and related specifications

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Mechanically refrigerated low temperature model

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Low Temperature Pressure Viscometer – Consists of power, hydraulic and grease systems with refrigerated test chamber. Hydraulic system includes constant displacement gear-driven metering pump, hydraulic oil reservoir with 50-mesh screen, stainless st

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ASTM D1092