Thermco’s ASTM - Mercury Thermometers are made in accordance with specifications of the American Society for Testing and Material. Strict manufacturing procedures and quality controls insure full compliance to ASTM E-1. They are made from annealed glass and have been extensively aged for minimal scale error and stability.
ASTM Test: Aviation Fuel Freezing Point
Range: -80 to 20°C
Subdivisions (mm): 0.5
Length (mm): 300
Immersion (mm): Total