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HIGH DENSITY POLYETHYLENE & POLYPROPYLENE PIPING SYSTEMS

HIGH DENSITY POLYETHYLENE ( HDPE ) PIPES—20mm TO 1000MM

 Indian Standards

 IS 4984-95   water supply

 IS 14333 for sewage & wastewater

 International Standards

 ISO 4427 for water

 EN 12201 for water

 AS-NZ 4130

 SABS ISO 4427

 DIN 8074

 

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Standards referred to in the PE Piping

The plastics pipes industry revolves around specifications and standards for the products and test methods to verify performance. Pipe systems are one of the most critical applications for thermoplastics materials with a design lifetime of 50 years and expected lifetime in excess of 100 years. Products must be fit for purpose and the end user needs confidence in the product in order to specify them. Specifications and dimensions must be universal and methods of test need to be standardised. The industry has put in a great deal of effort over many years to develop reliable methods.

 

ISO 4427-1:2007, Plastics piping systems – Polyethylene (PE) pipes and fittings for water supply – Part 1: General

ISO 4427-2:2007, Plastics piping systems – Polyethylene (PE) pipes and fittings for water supply – Part 2: Pipes

ISO 4427-3:2007, Plastics piping systems – Polyethylene (PE) pipes and fittings for water supply – Part 3: Fittings

ISO 4427-5:2007, Plastics piping systems – Polyethylene (PE) pipes and fittings for water supply – Part 5: Fitness for purpose

Text Box: PHYSICAL PROPERTIES

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Property

 

Value

Unit

Test Method

Test Specimen

Density @ 23° C

 

0.958

g/cm3

ISO 1183

10mm x 10mm x 4mm

Viscosity Number

 

380

ml/g

ISO 1628-3

0.1% solution of granules in

 

 

 

 

 

decahydronaphthalene

Melt Flow Rate

MFR 190/5

0.23

g/10 min -1

ISO 1133

Granules sample weight

 

MFR 190/21.6

6.50

g/10 min -1

 

3g to 6g

Tensile Properties

Yield Stress

26

N/mm 2

ISO 527, Test

ISO 3167, 4mm thick

 

 

 

 

Rate 50mm/min

 

 

Elongation at Yeild Stress

10

%

ISO 527,

 

 

 

 

 

Test Rate 50mm/min

 

 

Tensile Modulas of

900

N/mm 2

ISO 527

 

 

Elasticity

 

 

 

 

 

Tensile Creep Modulas

650

N/mm 2

ISO 899, Test Load

 

 

( 1 Hour Value )

 

 

2M/mm 2

 

Hardness

Ball Indentation Hardness

 

 

 

 

 

Shore Hardness D (3 sec value)

61

~

ISO 868

6mm sheet

 

Shore Hardness D (15 sec value)

59

~

 

 

Vicat Softening

 

67

°C

ISO 306

4mm sheet

Point VST/B/50

 

 

 

 

 

Oxidation

200 °C in O2

>=60

min

ISO TR 10837

Granules