Covers the systems components needed for the use of TWW for irrigation which
relate to various pressure and open irrigation systems specifically drip irrigation as this method
represents an efficient method of water delivery and water saving...
Provides recommendations regarding:
- monitoring the quality of treated wastewater (TWW) for irrigation;
- monitoring irrigated plants;
- monitoring the soil with regard to salinity;
- monitoring natural water sources in neighbouring environments..
Applicable to gully tops and manhole tops made of mild steel, stainless steel and
aluminium alloys whether in combination with concrete or not, with a clear opening up to and including 1 000 mm for covering gullies, manholes and inspection chambers..
Applicable to precast gully tops and manhole tops made of steel reinforced concrete with a clear opening up to and including 1 000 mm for covering gullies, manholes and inspection chambers for installation within areas subjected to pedestrian and/or ..
Applicable to manhole tops and gully tops made of composite materials C1, C2 and C3 by using suitably controlled automatic processes that produce a single structure and that do not contain multiple pieces bonded together, with a clear opening up to a..
Applicable to gully tops and manhole tops made of flake graphite cast iron and/or spheroidal graphite cast iron whether in combination with concrete or not, with a clear opening up to and including 1 000 mm for covering gullies, manholes and inspecti..
Applies to manhole tops and gully tops made of Polypropylene (PP), Polyethylene (PE) or unplasticized poly(vinyl chloride) (PVC-U) by a moulding or extrusion process, with a clear opening up to and including 1 000 mm for covering gullies, manholes an..
Specifies the requirements for gypsum plasterboard that is intended to be used as
vertical or horizontal linings in buildings, but does not include plasterboard that has been subjected to
secondary manufacturing operations...
Serves as a practical guide on occupational health and safety and environmental
aspects in and around timber treatment plants with the intention to reduce health and safety and
environmental risks...
Specifies the method to be used to determine the permanent deformation caused when static stress in torsion is applied to an open door leaf fixed in its own door frame as part of a doorset...