Guyana National Bureau of Standards |  Portal 

    Standards

    Seamless and welded steel tubes for pressure purposes - Ultrasonic testing of tube ends for the detection of laminar imperfections
    Welding – Materials for resistance welding electrodes and ancillary equipment
    Tungsten electrodes for inert gas shielded arc welding, and for plasma cutting and welding - Codification
    Equipment used in gas welding, cutting and allied processes - Safety devices for fuel gases and oxygen or compressed air – General specifications, requirements and tests
    Graphical symbols for resistance welding equipment
    Gas tightness of equipment for gas welding and allied processes
    Arc-welded joints in steel - Guidance on quality levels for imperfections
    Filler metal for soft soldering, brazing and braze welding - Designation
    Steel castings – Penetrant inspection
    Aluminium alloy castings – Radiography testing