Blue spirit filled, partial

Specification:

Blue spirit filled, partial -
Mercury free - filled with safe low toxicity blue indicating fluid
•Calibrated for 'partial immersion' i.e. to give accurate readings when the thermometer is immersed to a specific depth (76mm as marked on thermometer)
•Graduations in permanent amber stain
•White coloured background provides clear observation of blue coloured liquid column
•Reinforced bulb to allow stirring
•With plastic non-roll top and safety suspension ring
•Nominal length 305mm
•Items 60/210/10 and 60/260/10 have a length of 405mm
•Item 60/330/20 has a brown spirit filling