Fabric to be used in the manufacture of mattress covers for use by the National Health Service.Cross References:BS 381CBS 1006BS 2092BS 2543BS 2544BS 2661-86 & 3661Addendum No. 1 to BS 2661-86 & 3661:1961Addendum No. 2 to BS 2661-86 & 3661:1961BS 3424BS 3970:Part 1BS 4060BS 5223:Part 4