ASTM A125-96 : Standard Specification for Steel Springs, Helical, Heat-Treated ASTM F1566-09 : evaluation of innersprings, boxsprings, mattresses or mattress sets ASTM F1085-10 : standard specification for mattress and box springs for use in berths in marine vessels BS 1726-1 : Cylindrical helical springs made from round wire and bar. Guide to methods of specifying, tolerances and testing. Compression springs. BS 1726-2 : Cylindrical helical springs made from round wire and bar. Guide to methods of specifying, tolerances and testing. Extension springs BS 1726-3 : Cylindrical helical springs made from round wire and bar. Guide to methods of specifying, tolerances and testing. Torsion springs. DIN 2192 : Flat springs - requirements and testing JIS B 2704 : Helical compression and extension springs - requirements for design, performance test method