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ASTM 1C Mercury Thermometer, -20°—150°C

Model: MA-420C


ASTM 1C Thermometer is a General Use application type thermometer with a temperature range of -20°—150°C and a division of 1.0°C. The thermometer length is 12.7in with a 3in capability. This ASTM mercury-filled thermometer is yellow-backed glass with permanently etched graduations and individually packaged in a protective tube. The accuracy is assured by the inspection and testing of samples from each production run, and the thermometer is supplied with a statement of compliance with ASTM E1 and E77 requirements.

MA-420CT: is NIST traceable Certified and supplied with a certificate of calibration.

NOTE: Please check your state and local ordinances controlling mercury instruments before ordering. Regulations are constantly changing, and Gilson may not be permitted to ship this thermometer to you. These items cannot be exported.


  • Compliant with ASTM E1 and E77 requirements
  • Permanently etched graduations

Included Items:

  • ASTM # 1C Thermometer (with or without NIST Traceable Calibration)


ASTM Number 1C
Temperature Range -20°—150°C
Division 1.0°C
Immersion 3in (76mm)
Application General Use
Length 12.7 (322)
Estimated Shipping Weight MA-420C: 1.0lb (0.45kg)

MA-420CT: 0.5lb (0.23kg)


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