Maximum, minimum and ordinary (i.e. wet and dry bulb) glass-sheathed thermometers suitable for mounting in a louvred screen. Comply with MOD and Meteorological Office requirements (Celsius scale) for worldwide use. Essential dimensions, maximum errors, specification for ethanol in spirit-filled thermometers. Requirements for Fahrenheit scale given in appendix.
BS 692:1990 history
0000 BS 692:1990(2007)
1990BS 692:1990 Specification for meteorological thermometers