Over deze norm
This European standard defines the requirements and test methods applicable to factory applied external polyurethane based coatings for the heavy duty (Annex D.3 of EN 545:2002) corrosion protection of buried ductile iron pipes conforming to EN 545, EN 598 and EN 969 for use at operating temperatures up to 50°°C. This standard does not cover ductile iron pipes protected with zinc and a finishing layer of polyurethane. Special activities on site such as tapping, clamping, etc. could effect the corrosion protection properties of the polyurethane coating. These operations should be covered in the laying instructions supplied by manufacturers of clamps, house connection saddles, etc. and any relevant users' procedures. Such instructions are not part of this standard.
|Nederlandse titel||Nodulair gietijzeren buizen en hulpstukken - Uitwendige polyurethaan bekleding voor buizen in sterk aggressieve grondlagen|
|Engelse titel||Ductile iron pipes, fittings and accessories - External polyurethane coating for pipes in highly aggressive soils|