Guyana National Bureau of Standards |  Portal 

    Standards

    Finance × Tobacco Products × Stationary containers and tanks × Respiratory protective devices ×
    Requirements for advertising – Part 3: Advertising of cigarettes
    Labelling of tobacco products
    Specification for Rotationally moulded polyethylene water storage tanks
    Non-medical face masks – Specification
    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