Registration number (WIID)Project No.TitleStatus
81198prEN 14541-1Plastics pipes and fittings - Utilisation of thermoplastic materials in a circular economy - Part 1: VocabularyAptauja slēgta
79541prEN 15383Plastics piping systems for drainage and sewerage - Glass-reinforced thermosetting plastics (GRP) based on polyester resin (UP) - Manholes and inspection chambersAptauja slēgta
80261prEN ISO 11300-4Piping systems for rehabilitation of underground drains, sewers and water supply networks - Part 4: Thermoplastic composite materials (ISO/DIS 11300‑4:2025)Aptauja slēgta
82489prEN 1401-1Plastics piping systems for non-pressure underground drains and sewers - Unplasticized poly(vinyl chloride) (PVC-U) - Part 1: Specifications for pipes, fittings and the systemsAptauja
5872LVS EN 13244-3:2003Plastics piping systems for buried and above-ground pressure systems for water of general purposes, drainage and sewerage - Polyethylene (PE) - Part 3: FittingsAtcelts
5912LVS EN 12201-2:2003Plastics piping systems for water supply - Polyethylene (PE) - Part 2: PipesAtcelts
21608LVS EN 12201-1:2003Plastics piping systems for water supply - Polyethylene (PE) - Part 1: GeneralAtcelts
5913LVS EN 12201-3:2003Plastics piping systems for water supply - Polyethylene (PE) - Part 3: FittingsAtcelts
6109LVS ENV 1046:2002Plastics piping and ducting systems - Systems outside building structures for the conveyance of water or sewage - Practices for installation above and below groundAtcelts
5915LVS EN 12201-5:2003Plastics piping systems for water supply - Polyethylene (PE) - Part 5: Fitness for purpose of the systemAtcelts
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