Section 40 in The Rajasthan Weights and Measures (Enforcement) Rules, 1959
40.
-39.99=0.01=(40-20) e-t/2.6s or 20 seconds at the most.Annexure-AQualities of Glasses for Bulbs of ThermometerIn order to be suitable for the production of bulbs of clinical thermometers the glass shall have qualities such that thermometer, without a maximum indicating device, manufactured with that glass and heated in a boiling water bath at 100°C for half an hour does not give a depression of the zero by more than 0.05°C.Annexure-BDetermination of Hydrolytic Resistance of Glass Grains At 98°C
