oaaelectricplumbJan 4Understanding corrosion of metals and alloys–Determination of dezincification of resistance of brass
oaaelectricplumbJan 3Understanding Rubber seals–Joint rings for water supply, drainage and sewerage pipelines–Specification for materials.
oaaelectricplumbJan 2Understanding the installation, maintenance, replacement and repair of fixed electric storage water heating systems.
oaaelectricplumbJan 1, 2024Understanding the installation, maintenance, repair and replacement of domestic solar water heating systems.
oaaelectricplumbDec 28, 2023Water supply and Distribution System Components - Mechanical Backflow Prevention devices
oaaelectricplumbDec 28, 2023Water Supply and Distribution System Components - Gas Operated Water Heaters
oaaelectricplumbDec 27, 2023Water Supply and Distribution System Components - Copper alloy check valves (spring loaded)
oaaelectricplumbDec 26, 2023Water Supply & Distribution system components - Metering Taps & Valves (metallic Bodies)
