Brookfield DVE - Page 36

AMETEK Brookeld Page 36 Manual No. M15-356-B0916
MINERAL OIL VISCOSITY STANDARD FLUIDS
BEL Part No. Viscosity (cP) 25ºC
B29 29
B200 200
B400 400
B600 600
B1060 1,060
B2000 2,000
B10200 10,200
B21000 21,000
B730000 73,000
B200000 200,000
B360000 360,000
Table F-2
Brookeld Viscosity Standard Fluid - General Information
e calibration of the Brookeld viscometer can be veried through the use of calibrated viscosity
standard uids. e Brookeld viscometer operates through the use of a calibration torque sensor
with variable spindle geometry and rotational speeds. If the viscometer passes a calibration check
using one measurement geometry across several speeds (verifying performance over a range of %
torque values), then one can conclude that the viscometer is operating properly across the entire
range of speeds and all spindles that can be utilized.
When choosing viscosity standard uids, Brookeld recommends that you select viscosity values that
facilitate the ease of use of the viscosity standard uid. In general, this means that we recommend
that you choose a low viscosity value which is within the range of the measurement system utilized.
A low viscosity value calibration standard will help facilitate thermal equilibrium, the removal of
air bubbles, and the handling of the uid between the viscosity standard jar and the measurement
chamber (600 mL low form beaker or other sample chamber utilized with Brookeld accessories).
For this reason, it is not necessary to have a calibration standard with the exact value as your
experiment material or even a calibration standard near the value of your test sample. In general,
it is recommended that once you have selected a measurement geometry for the calibration check,
measurement data can be collected over a range of rotational speeds so that measurements are made
at several dierent values across the instrument % torque scale.
We recommend that Brookeld Viscosity Standard Fluids be replaced . ese uids are either
pure silicone or mineral oil and are not subject to change over time. However, exposure to outside
contaminants through normal use requires replacement on an annual basis. Contamination may
occur by the introduction of solvent, standard of dierent viscosity or other foreign material.
Viscosity Standard Fluids may be stored under normal laboratory conditions. Mineral oils should
be stored in the container in which they are supplied. Disposal should be in accordance with state,
local and federal regulations as specied on the material safety data sheet; MSDS information is
available upon request on our website to download.