IS 12701 : 1996 Specification for rotational moulded polyethylene water storage tanks

1 Scope

1.1 This standard covers thc requirements of materials,dimensions construction, shape, workmanship, performancerequirements and inspection and testing of rotational mouldedpolyethylene water storage tanks with a nominal service temperaturefrom

1.1.1 These tanks are not meant for underground applications,

1.2 This standard is applicable only LO water storage tankssubjected to the following two conditions:

a) Own hydrostatic head of water, and

b) Tank with uniform flat base support.

1.3 This standard does not cover mobile water tanks andhorizontal cylindrical water tanks.

2 References

IS 554 :1985 Dimensions for pipe threads wherepressure-tight joints are required onthreads

IS 1879 :1987Malleable cast iron pipe fittings

IS 2530 :1963Methods of test for polyethylenemoulding materials and polyethylene

compounds

IS 4905 :1968Methods for random sampling

IS 7328 :1992High density polyethylene materialsfor moulding and extrusion

IS 8543 : Part 4 : Sec 1 :1984 Methods of testing plastics:Part 4 Short term mechanicalproperties, Section 1 Determination oftensile properties

IS 9845 :1986Methods of analysis for thedetermination of specific and/oroverall migration of constituents ofplastic materials and articles intended to come into contact with foodstuffs

IS 10141 :1982Positive list of constituents ofpolyethylene in contact withfoodstuffs, pharmaceuticals anddrinking water

IS 10146 :1982Polyethylene for it safe use in contactwith foodstuffs, pharmaceuticals anddrinking water

IS 13360 : Part 5 : Sec 7 : 1995 Plastics - Methodsof testing:Part 5 Mechanical properties,Section 7 Determination of flexural properties