(5)[The bores of the stems shall be such that the position of the top of the mercury column shall be easily distinguishable at a distance of 60cms.] [Sub Rules (5) to (8) Substituted by SRO No. 1149/2001 dt. 28-12-2001.](60 Each thermometer shall be graduated in such a way that accurate readings can be taken between 10 and 50 degrees.
