The standard applies to pipes and double sleeves made of unplasticized PVC for wastewater pressure pipes, with outer diameters from 110 to 500 mm. Note For application instructions, see the appendix. This appendix is not part of the standard text.
NEN 7029-1980 history
1980NEN 7029-1980 Unplasticized PVC pipes and doublé sockets for pressure pipelines for drain and sewer purposes