Guyana National Bureau of Standards |  Portal 

    Standards

    Requirements for Advertising - Part 1 : General
    Requirements for Advertising - Part 2 : Advertising to Children
    Requirements for advertising – Part 3: Advertising of cigarettes
    Television broadcasting
    Food safety — Part 1: Requirements for bodies providing audit and certification of food safety management systems
    GYS IEC 61850-7-4 : 2003 Communication networks and systems in substations - Part 7-4: Basic communication structure for substation and feeder equipment - Compatible logical node classes and data classes