This standard BS 5471:1977 Specification for thermometer for use with alcohol hydrometers is classified in these ICS categories:
17.200.20 Temperature-measuring instruments
This British Standard specifies requirements for a solid-stem mercury-in-glass thermometer for use with alcohol hydrometers complying with the requirements of BS 5470.
Solid-stem thermometer with a range of -5°C to +40°C with an accuracy of ± 0.2°C.