HC Deb 08 May 1972 vol 836 c270W
76. Mr. Leslie Huckfield

asked the Secretary of State for the Environment what standards are prescribed for the smokeless properties of imported smokeless fuels.

Mr. Eldon Griffiths:

Both imported and home-produced smokeless fuels are subject to recommended British Standard 3841: 1965, whereby smoke emissions should not exceed 5 grammes of smoke per hour.