Guyana National Bureau of Standards |  Portal 

    Standards

    Electrical Codes × Safety × Adoption by Endorsement × Chemicals for industrial and domestic ×
    High-voltage switchgear and control gear - Part 203 : Gas-insulated metal - enclosed switchgear for rated voltages above 52 kV
    International code of practice for industrial rope access Part 1: Foreword, Introduction, Scope, Structure, Terms and definitions, Principles and control