Brookfield RVDV-II+Pro - Calibration Procedure for LV(#1-4) and RV,HA,HB(#1-7) Brookfield Spindles; Calibration Procedure for a Small Sample Adapter

Brookeld Engineering Labs., Inc. Page 67 Manual No. M/03-165-D0410
Brookeld Viscosity Standard Fluid General Information
We recommend that Brookeld Viscosity Standard Fluids be replaced on an annual basis, one
year from date of initial use. These uids are pure silicone 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 different
viscosity or other foreign material.
Viscosity Standard Fluids may be stored under normal laboratory conditions. Disposal should
be in accordance with state, local and federal regulations as specied on the material safety
data sheet.
Brookeld Engineering Laboratories does not recertify Viscosity Standard Fluids. We will
issue duplicate copies of the Certicate of Calibration for any uid within two years of the
purchase date. Brookeld Viscosity Standard Fluids are reusable provided they are not
contaminated. Normal practice for usage in a 600 ml beaker is to return the material from the
beaker back into the bottle. When using smaller volumes in accessories such as Small Sample
Adapter, UL Adapter or Thermosel, the uid is normally discarded.
Calibration Procedure for LV(#1-4) and RV,HA,HB(#1-7) Brookeld Spindles
1) Place the viscosity standard uid (in the proper container) into the water bath.
2) Lower the DV-II+Pro into measurement position (with guard leg if LV or RV series Viscometer
is used).
3) Attach the spindle to the Viscometer. If you are using a disk-shaped spindle, avoid trapping
air bubbles beneath the disk by rst immersing the spindle at an angle, and then connecting it
to the Viscometer.
4) The viscosity standard uid, together with the spindle, should be immersed in the bath for a
minimum of 1 hour, stirring the uid periodically, prior to taking measurements.
5) After 1 hour, check the temperature of the viscosity standard uid with an accurate
thermometer.
6) If the uid is at test temperature (±0.1°
C of the specied temperature, normally 25°C), measure
the viscosity and record the Viscometer reading. Note: The spindle must rotate at least ve (5)
times before readings are taken.
7) The viscosity reading should equal the cP value on the uid standard to within the combined
accuracies of the Viscometer and the viscosity standard (as discussed in the section entitled,
Interpretation of Calibration Test Results) which appears later in this section.
Calibration Procedure for a Small Sample Adapter
Brookeld recommends a two step check. First verify the calibration of the viscometer using
the standard viscometer spindles (LV1-4, RV2-7, HA2-7 and HB2-7 or cone/plate spindles) as
detailed in this appendix. Second verify the calibration of the viscometer using the Small Sample
Adapter. The use of an accessory device may increase the accuracy of measurement associated
with the DV-II+Pro.