[Amalgamating IS 8008 (Parts 1 to 9)]

New Standard from Last Update.

1. SCOPE

1.1 This standard covers requirements for materials, manufacture, dimensions, methods of test and inspection and marking of all types of injection moulded and machined polyethylene (PE) fittings intended for connection to PE pipes covered by IS 4984 for water supplies.

NOTE - Fittings from 20 mm to 315 mm are generally manufactured by the injection moulding methods and machined, wherever so required; and fittings of 355 mm and above are manufactured from thick walled extruded pipes or compression moulded slabs or extrusion flow moulding and then machined to desired dimensions.

1.2 For technical reasons, the fittings may be welded to pipes of same pressure rating. Deviations from this requirement are allowed if the wall thicknesses are equal in the welding zone.

1.3 The fittings covered in this standard are intended to be used under the following conditions of water supplies:

a) A maximum operating pressure of 2.0 MPa (20 bar); and

b) An operating temperature of 27 °C as the reference temperature.

1.3.1 For applications operating at constant temperatures other than 27 °C and between the range 20 °C to 45 °C, maximum allowable operating pressure shall be calculated in accordance with 1.4, Table 1 and Fig. 1 of IS 4984.

2. REFERENCES

The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication the editions indicated were valid. All standards are subjected to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

2530 : 1963 Methods of test for polyethylene moulding materials and polyethylene compounds

4905 : 2015/ISO 24153 : 2009 Random sampling and randomization procedures (first revision)

4984 : 2016 Polyethylene pipes for water supply - Specification (fifth revision)

7328 : 2020 Specification for polyethylene material for moulding and extrusion (second revision)

9845 : 1998 Determination of overall migration of constituents of plastics materials and articles intended to come in contact with foodstuffs - Method of analysis (second revision)

10146 : 1982 Specification for polyethylene for its safe use in contact with foodstuff, pharmaceuticals and drinking water

14885 : 2021 Polyethylene pipe for supply of gaseous fuel - Specification (first revision)

16738 : 2018 Positive list of constituents for polypropylene, polyethylene and their copolymers for its safe use in contact with foodstuffs and pharmaceuticals