International Organization for Standardization (ISO)
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ISO 654:1980
Scope
A basic series of liquid-in-glass solid-stem termometers not exceeding 250 mm in length for accurate measurement of temperature is specified. Temperature scale, materials, construction, marking and accuracy are described. The annex deals with a method of determing change in zero indication.
ISO 654:1980 history
1980ISO 654:1980 Short solid-stem thermometers for precision use