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NEN ISO 4437 : 2007
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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BURIED POLYETHYLENE (PE) PIPES FOR THE SUPPLY OF GASEOUS FUELS - METRIC SERIES - SPECIFICATIONS
03-10-2007
12-01-2013
Defines the general properties of the polyethylene (PE) compounds for the manufacture of pipes, the physical and mechanical properties of the pipes made from these compounds, and the requirements for the marking of such pipes, intended to be used for the supply of gaseous fuels.
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