Mr. Alan W. WilliamsTo ask the Secretary of State for Social Services what is the maximum permitted concentration of 2,3,6,7—tetrachloro-dibenzo dioxin in the antiseptic hexachlorophene.
§ Mr. NewtonThe licensing authority for medicines has undertakings that hexachlorophane used in the preparation of medicinal products contains no more than 15 parts per 1,000 million of 2,3,6,7 tetrachloro-dibenzo dioxin.