Articles of cargo requiring it will be disinfected by

(a) Steam heat of 100 0 C. for not less than thirty minutes after such température is reached, or by boiling the same length of time.

(b) Wetting throroughly with bichloride solution, 1 to 800, or with 3 per cent solution of pure carbolic acid.

(c) Exposure to sulphur dioxide , volume of 10 per cent, for not less than twelve hours.