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The TN-4M thermometer is designed for measuring the drop point of lubricating greases during viscosity testing (e.g., with the Ubbelohde apparatus).

Specifications:

Measurement range: 0 to +150 °C

Length: 250 mm

Scale division: 1 °C

TN-4M Mercury Laboratory Thermometer — For Testing Lubricating Greases

Key Benefits of the TN-4M Thermometer

Specifically Designed for Drop Point Testing

Ideal for determining the melting and flow points of greases, vaseline, and lubricating materials according to Ubbelohde or GOST standards.

Optimized Range — up to +150 °C

Captures temperature ranges close to actual working conditions of greases and semi-solid lubricants.

Resistant to Heat and Chemical Exposure

The glass body tolerates high temperatures without scale distortion. The markings remain intact, and the mercury column remains stable during thermal testing.

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