Section 02 in The Standards of Weights and Measures (General) Rules, 1987
02.
°C, 0.05°C or 0.1°C(3)The scale spacing must be at least 1.0 mm.(4)The expansion chamber must be large enough to allow the thermometers to be heated to 400°C without damage.(5)The thermometers must be properly stabilized by the manufacturer and must meet the requirements of the stabilization test (see paragraph 3).
