Plastics piping systems for non-pressure underground drains and sewers -
Structured-wall piping systems of unplasticized poly(vinyl chloride)
(PVC-U), polypropylene (PP) and polyethylene (PE) - Part 2:
Specifications for pipes and fittings with smooth internal and external
surface and the system, Type A
Solid recovered fuels - Determination of moisture content using the oven
dry method - Part 2: Determination of total moisture by a simplified
method (ISO 21660-2:2025)