Plans that can be used when the switching rules of BS 6001-1 are not applied," e.g. for ""isolated lots"". Preferred series of limiting qualities (LQ) with consumer's risk usually below 10%. Rationalizes the ""ad hoc"" procedure mentioned in 11.6 of BS 6001-1.#",#BS 6001-2:1993*ISO 2859-2:1985