These precision laboratory thermometers are suitable for official certification.

• Total immersion
• White back or colourless prismatic capillary form
• Filing with toluol or alcohol
• Stabilisation of the thermometer zero point by molecular-constant, artificial ageing

Enclosed or stem type; the stem types are acid and base resistant. These thermometers can be used for application in science and research.

Conforms to DIN 12778.

Until 10th October 2017 it is still allowed to use mercury thermometers if they are exclusively intended to be used for tests as per standards which require the usage of mercury thermometers.