HC Deb 21 January 1997 vol 288 c512W
Mr. Cohen

To ask the Secretary of State for the Home Department which lethal toxicity tests other than the LD50 are included in the category, acute and sub-acute quantitative whole body lethal toxicity tests, in the 1990 to 1994 statistics on scientific procedures on living animals in Great Britain. [11170]

Mr. Sackville

Any tests requiring a quantitative estimate of the lethal dose were included: LD50/LC50 tests, LD10/LC10 tests, fixed dose procedure tests and any other test methods—mainly sub-acute, repeat dose tests—considered to fall within the following definitions(a) dose ranging or limit setting lethal toxicity tests (including indicator tests); (b) lethal toxicity tests (including tests in which a statistically valid quantitative result was required); and (c) non-lethal clinical sign toxicity tests.