Guyana National Bureau of Standards |  Portal 

    Standards

    Code of Practice for production of rice
    Code of Practice for fresh fruits and vegetables
    Specification for Grades of watermelons
    Steel and iron castings — Magnetic particle testing
    Steel and iron castings — Liquid penetrant testing
    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
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