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ISO 4427:1996
Polyethylene (PE) pipes for water supply - Specifications


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Abstract

Specifies the required properties of pipes made from polyethylene (PE) to be used for buried water mains and services and for water supply above ground both inside and outside buildings. In addition, it contains specifications for some general properties of the material from which these pipes are made, including a classification scheme.

General Product Information

Document Type Standard
Status Superseded
Publisher:    ISO
Committee TC 138
Superseded By:
ISO 4427-1:2007
ISO 4427-2:2007



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PDF (Personal Use)
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$114.40
Published:   19 Dec 1996  
Pages: 13
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$114.40
Published:   19 Dec 1996  
Delivery Time:   5-10 days
Pages: 13

Table of Contents

Contents
1.  Scope
2.  Normative references
3.  Material
    3.1  Compounds 
    3.2  Dispersion of pigments in compounds
    3.3  Thermal stability 
    3.4  Reworked material
    3.5  Effects on water quality of pipes
         intended for the conveyance of water for 
         human consumption
    3.6  Designation and classification
    3.7  Melt flow rate and density
4.  Geometrical characteristics
    4.1  Dimensions of pipes: outside diameters,
         nominal pressures and wall thicknesses
    4.2  Ovality
    4.3  Length of pipe
    4.4  Pressure reduction factors for PE pipeline 
         systems for use at temperatures above 20 Deg C
5.  Mechanical characteristics
    5.1  Hydrostatic strength
    5.2  Retest in cases of failure at 80 Deg C
6.  Physical characteristics
    6.1  Thermal stability of pipes manufactured from 
         PE 63, PE 80 and PE 100
    6.2  Longitudinal reversion
    6.3  Weathering of non-black pipes
7.  Fusion compatibility 
8.  Marking
Annex
A  Procedure for exposure to outdoor weathering

Abstract

Specifies the properties required of pipes made from polyethylene
(PE) that are to be used for buried water mains and services and
for water supply above ground both inside and outside buildings.
It also specifies, some general properties of the material from
which these pipes are made and includes a classification scheme.

History

1ED 1996 [15/12/1996]

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