IS 7197 : 1974 Specification for double action floor springs (without oil check) heavy door

1 Scope

1.1 This standard covers the requirements for concealed typefloor springs (without oil check) for vertical doors weighing notmore than 125 kg. For doors having more than one leaf, the weightof each leaf shall not exceed 125 kg.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 426 : 1961Specification for paste filler for colour coats

IS 1868 : 1968Specification for anodic coatings or aluminium

IS 2931 : 1964Specification for ready mixed paint, brushing,aluminium-zinc oxide composite primer

IS 2932 : 1964Specification for enamel, synthetic, exterior, Type 1,(a) Undercoating, (b) finishing, colour as required

IS 2933 : 1964Specification for enamel, exterior, Type 2, (a)Undercoating, (b) finishing, colour as required

IS 3618 : 19663Specification for phosphate treatment of iron and steelfor protection against corrosion