The ASTM #19F Saybolt Viscosity Thermometer, 120 to 134F has a strict manufacturing tolerance. Accuracy is assured by inspection and testing of samples from each production run. The thermometer is supplied with a statement of compliance to E 1 and E 77 requirements. The ASTM Thermometer is yellow-backed glass with permanent graduations, mercury-filled and individually packed in a cardboard tube.
ASTM Number: 19F
Length: 10.8 (275), in (mm)
Immersion: Total
Range: 120 to 134F
Division: 0.2F