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BOS 80: 2013 ed.2
P558.60
Unplasticized polyvinyl chloride PVC-U) sewer and drain pipes and pipe fittings – Specification.
Description
This Botswana standard specifies normal duty and heavy-duty requirements for unplasticized polyvinyl chloride (PVC-U) pipes of nominal sizes 110 mm to 630 mm and one duty of PVC-U pipe fittings of nominal sizes 110 mm and 160 mm, intended for underground non-pressure applications in the construction of sewers and drains where temperatures continuously in excess of 60 °C are not encountered.