BS 5452:1977 pdf free.Specification for hospital hollow-ware made of plastics material. BS 5452 specifies requirements for hospital hollow-ware made of plastics materials. 4 Materials The hollow-ware shall be made from suitable plastics material, which shall comply with the requirements of clauses 10 and 11. 5 Design 5.1 General 5.1.1 The design shall be such as to prevent utensils from jamming...