Cannon-Fenske, Cannon-Ubbelohde, and Cannon-Ubbelohde Dilution Viscometers Size | Approx. constant, cSt/s | Range cSt* | 25 | 0.002 | 0.5 to 2 | 50 | 0.004 | 0.8 to 4 | 75 | 0.008 | 1.6 to 8 | 100 | 0.015 | 3 to 15 | 150 | 0.035 | 7 to 35 | 200 | 0.1 | 20 to 100 | 300 | 0.25 | 50 to 250 | 350 | 0.5 | 100 to 500 | 400 | 1.2 | 240 to 1,200 | 450 | 2.5 | 500 to 2,500 | 500 | 8 | 1,600 to 8,000 | 600 | 20 | 4,000 to 20,000 | 650 | 45 | 9,000 to 45,000 | 700 | 100 | 20,000 to 100,000 | * Ranges in centistokes represent flow times of 250 to 1000 seconds for Size 25, and 200 to 1000 for all other sizes. | | | Ubbelohde Viscometers Size | Approx. constant, cSt/s | Range cSt* | 0 | 0.001 | 0.3 to 1 | 0C | 0.003 | 0.6 to 3 | 0B | 0.005 | 1 to 5 | 1 | 0.01 | 2 to 10 | 1C | 0.03 | 6 to 30 | 1B | 0.05 | 10 to 50 | 2 | 0.1 | 20 to 100 | 2C | 0.3 | 60 to 300 | 2B | 0.5 | 100 to 500 | 3 | 1.0 | 200 to 1,000 | 3C | 3.0 | 600 to 3,000 | 3B | 5.0 | 1,000 to 5,000 | 4 | 10 | 2,000 to 10,000 | 4C | 30 | 6,000 to 30,000 | 4B | 50 | 10,000 to 50,000 | 5 | 100 | 20,000 to 100,000 | * Ranges in centistokes represent flow times of 300 to 1000 seconds for Size 0, and 200 to 1000 seconds for all other sizes. | |