(2)Method of calculation of transit wastage. - In addition to the above when the temperature of the spirit on receipt is lower than when it was despatched, further wastage allowance of 0.01 of London Proof litre per cent for every degree Fahrenheit of difference may be made. The allowance to be made under this rule shall be determined by deducting from the quantity of spirit despatched, the quantity received at the place of destination, both quantities being stated in terms of London Proof litres and shall be calculated on the quantity contained in each cask or other receptacle comprised in a consignment.Note. - Great care must be taken to ensure that the temperature on which the allowance is made is that of the spirit on the cask. The sample jar must not be filed to more than three-fourths of its capacity and should be quite dry on the outside.
