Guyana National Bureau of Standards |  Portal 

    Standards

    Specification for the labelling of retail packages of tobacco products
    Labelling of tobacco products
    Requirements for advertising – Part 3: Advertising of cigarettes
    Gas welding equipment — Safety devices- Part 1: Devices not incorporating a flame (flashback) arrestor
    Steel and iron castings — Magnetic particle testing
    Steel and iron castings — Liquid penetrant testing
    Labelling of tobacco products