(5)"calorific value" means the number of British thermal units (gross) produced by the combustion of one cubic foot of gas measured at sixty degrees Fahrenheit under a pressure of thirty inches of mercury and, except as may be otherwise directed by the State Government in relation to gas supplied by any particular company or class of companies specified in the direction, saturated with water vapour.] [These clauses were inserted by Bombay 13 of 1950, Section 3.]
