1.1 This standard prescribes the requirements and the methods of sampling and test for glass tubes used in the manufacture of general purpose,
reference and all other types of liquid-in-glass thermometers suitable for use within a range of -200° to +500°C.
1.1.1 This standard does not deal with glass tubes used in the manufacture of medical and enclosed-scale thermometers.
IS 4610-1968 history
1969IS 4610-1968 Specification for glass tubes for general purpose and reference thermometers