Performance requirements for 10 grades of tent fabric related to the angle at which the fabric is intended for use.Cross References:BS 381CBS 1006BS 1051BS 2087BS 2576BS 2823BS 3266BS 4303BS 4736BS 5438BS 5576BS 5651BS 6085BS 6307Handbook No. 11Fabrics (Misdescription) Act, 1913Textile Products (Indications of Fibre Content) Regulations 1973