beautypg.com

Appendix c - calibration verification – Brookfield Dial Stepper Viscometer User Manual

Page 18

background image

E0608

Brookfield Engineering Laboratories, Inc.

Page 18

Manual No. M00-151-H0612

APPENDIX C - Calibration Verification

The accuracy of the Dial Viscometer is verified using viscosity standard fluids which are available from

Brookfield Engineering Laboratories or your local Brookfield agent. Viscosity standards are Newtonian,

and therefore, have the same viscosity regardless of spindle speed (or shear rate). Viscosity standards,

calibrated at 25°C, are shown in Table C- 1.

Container size: For Viscosity Standards <30,000 cP, use a 600 ml Low Form Griffin Beaker

having a working volume of 500 ml.

For Viscosity Standards ≥30,000 cP, use the fluid container.

Inside Diameter: 3.25"(8.25cm)

Height:

4.75"(12.1cm)

Note: Container may be larger, but may not be smaller.

Temperature:

As stated on the fluid standard label: (±) 0.1°C

Conditions:

The Viscometer should be set according to the operating instructions. The water

bath should be stabilized at test temperature. Viscometers with the letters “LV”

or “RV” in the model designation should have the guard leg attached.

Table C-1

SILICONE VISCOSITY STANDARD FLUIDS

Normal 25ºC Standard Fluids

Viscosity (cP)

Viscosity (cP)

High Temperature Standard Fluids

Three Viscosity/Temperatures**

5

5,000

HT-30,000

10

12,500

HT-60,000

50

30,000

HT-100,000

100

60,000

500

100,000

**25ºC, 93.3ºC, 149ºC

1,000

Refer to Brookfield catalog for more information

MINERAL OIL VISCOSITY STANDARD FLUIDS

BEL Part No.

Viscosity (cP) 25ºC

B29

29

B200

200

B600

600

B1060

1,060

B2000

2,000

B10200

10,200

B21000

21,000

B73000

73,000

B200000

200,000

B360000

360,000

For more help you can go to the website,

www.brookfieldengineering.com, and download the video.