(b)Other departments : One hygrometer for each room of less than [8,500 cubic metres] [Substituted for '3,00,000 cubic feet' by SRO No. 1149/2001 dt. 28-12-2001.] capacity and one extra hygrometer for each [5,670 cubic metres] [Substituted for '2,00,000 cubic feet' by SRO No. 1149/2001 dt. 28-12-2001.] or part of, in excess of this.
