Plastics piping systems for non-pressure underground drainage and sewerage. Unplasticized poly(vinyl chloride)(PVC-U), polypropylene (PP) and polyethylene (PE). Guidance for assessment of conformity— 28 стр.
Gas infrastructure. Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations. Detailed functional requirements for design, materials, construction, inspection and testing— 124 стр.
