ASTM D; IP Method A*. # to +30°C temperature range. # Accepts up to 12 SimAir® test cells. # Internal refrigeration unit. # Mounting for Brookfield. ASTM D Standard Test Method for Low-Temperature Viscosity of Automatic Transmission Fluids, Hydraulic Fluids, and Lubricants. ASTM D – Standard Test Method for Apparent Viscosity of Adhesives Having Shear-Rate-Dependent Flow Properties Using Rotational Viscometry. Scope.
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Each chamber has a turn table with 6 sample capacity each.
D298 accessories for BV40 or BV No viewing window, but with digital sample temperature display. Procedure C is used when a mechanically refrigerated constant temperature liquid bath is used to cool samples by means of a simulated air cell SimAir 3 Cell in preparation for viscosity measurement.
Block Bath for sample preconditioning, 10 test positions.
SimAir™ Test Cells for ASTM D2983
Far superior viscosity data repeatability is obtained using this procedure as opposed to the air chamber procedure. Model BV is a compact, bench top unit with 6 sample capacity with digital sample temperature aetm. The twin air chambers are independently temperature controlled. Home Products Contacts Search. Windows based PC proprietary software is capable of controlling two baths simultaneously. No other units of measurement are included in this standard.
Model BV is a smaller, floor space saving, compact unit, with 12 sample capacity. Work Item s – proposed revisions of this standard.
At s2983 two reference fluids are recommended for each desired test temperature d29983 viscosity. The use of programmable liquid baths for ASTM D has been allowed since the first development of the test if the cooling profile meets the specifications of Annex A2 of the method. The turntable holds 10 test samples. Procedure A is used when only an air bath is used to cool samples in preparation for viscosity measurement.
Ample storage is provided inside the cold chambers for pre- cooling the insulated cell carriers. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
After the 16 hours conditioning time, the turntable is manually rotated until the proper test cell is under the viscometer. Link to Active This link will always route to the current Active version of the awtm. The Lawler liquid baths are programmed such that the sample cooling rate equals the cooling rate experienced by a sample when immersed in the constant low temperature air chamber.
The bath is an unsilvered Dewar jar holding about 3 liters of bath medium.
Lawler | ASTM D Low Temp Brookfield Viscosity Baths
Measurement of the viscometric properties of these oils and fluids at low temperatures is often used to specify their acceptance for service.
Low temperature viscosity values obtained by either interpolation or extrapolation of oils may be subject to errors asrm by gelation and other forms of non-Newtonian response to spindle speed and torque.
Procedure B is used when a mechanically refrigerated programmable liquid bath is used to cool samples in preparation for viscosity measurement. No viewing window, but with digital sample temperature display.
The spindle is connected while the sample is still in the liquid bath. Kits do not include the Brookfield Viscometer, which can be purchased separately. Specifications subject to change astn notice.
Model BV is a smaller, floor space saving, compact unit, with 12 sample capacity. Each model is equipped with turntable rotating at 4 RPM. Model BV has an 28 cm 11 inch square, multipane, insulated window with fluorescent light for observation of the interior, with 28 sample capacity.
Historical Version s – view previous versions of standard Work Item s – proposed revisions of this standard Translated Version s: Brookfield digital viscometer and DV Loader configuration software. Ample storage is provided inside the cold chambers for pre- cooling the insulated cell carriers.
It is designed for those laboratories with a very light sample load and limited space and budget. Recommended are at least 2 reference fluids for each desired test temp.
A digital, indicating controller with resolution of 0.