Guyana National Bureau of Standards |  Portal 

    Standards

    Specification for poly (vinyl chloride)(PVC) plastic pipe, schedules 40, 80 and 120
    Specification for (PVC) pressure-rated pipe (SDR series)
    Specification for Plugs and Receptacles rated at 240 Volts and Less, 15 amperes and less.
    Electrical Insulating Tape
    Electric cables – PVC insulated, non-armoured cables for voltage up to and including 450/750, for electric power, lighting and internal wiring