ISO 4786:1977 Preview
Enclosed-scale adjustable-range thermometers
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
The specified thermomters are used for measuring small temperature differences not exceeding 5 degrees centigrade within the range -21 degrees centigrade to +140 degrees centigrade. They are unsuitable for measuring absolute temperature, and they shall be of the mercury-in-glass encolsed-scale type. Temperature scale, immersion, construction, intervall error and stability are specified. Graduation and dimensions are tabled.
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