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Cannon-Ubbelohde
Semi-Micro Viscometers

Calibrated CUSMC (9721-H50) Series

For measuring kinematic viscosity of small samples of transparent Newtonian liquids according to ASTM D 445 and ISO 3104. Specifications conform to ASTM D 446 and ISO 3105. Viscometer constant is same at all temperatures. Read more about the significance of expanded uncertainty.

Provided with certificate of calibration and instruction sheet.

Uncalibrated CUSMU (9721-G50) Series

Similar to 9721-H50 series, but uncalibrated.

• Minimum sample volume approximately 1.0 mL. Sizes 400 through 600 may require larger sample volume. Initial sample can be diluted to as much as 20 mL for intrinsic viscosity determinations. Require liquid bath depth of 240 mm (9.5 inches).
• Size 25 has approximate constant 0.002 cSt/s and a range of 0.4 to 2 cSt.
• Holder is not supplied. For holders, see 9726-M70, 9726-M73, 9726-M76.
• Viscometers with special constants are available by special order at additional cost.

Size	Approx. constant, mm2/s2(cSt/s)	Kinematic Viscosity Range mm2/s(cSt)	CUSM Uncalibrated Series	CUSM Calibrated Series
25*	0.002	0.5 - 2	9722-G50 Qty	9722-H50 Qty
50	0.004	0.8 - 4	9722-G53 Qty	9722-H53 Qty
75	0.008	1.6 - 8	9722-G56 Qty	9722-H56 Qty
100	0.015	3 - 15	9722-G59 Qty	9722-H59 Qty
150	0.035	7 - 35	9722-G62 Qty	9722-H62 Qty
200	0.1	20 - 100	9722-G65 Qty	9722-H65 Qty
300	0.25	50 - 250	9722-G68 Qty	9722-H68 Qty
350	0.5	100 - 500	9722-G71 Qty	9722-H71 Qty
400	1.2	240 - 1200	9722-G74 Qty	9722-H74 Qty
450	2.5	500 - 2500	9722-G77 Qty	9722-H77 Qty
500	8	1600 - 8000	9722-G80 Qty	9722-H80 Qty
600	20	4000 - 20000	9722-G83 Qty	9722-H83 Qty