Guyana National Bureau of Standards |  Portal 

    Standards

    Respiratory protective devices × Agriculture Produce × Certification × Steel and Iron Castings ×
    Steel and iron castings — Magnetic particle testing
    Steel and iron castings — Liquid penetrant testing
    Conformity assessment – Fundamentals of product certifications and Guidelines for product certification schemes
    Specification for achar, amchar and kuchela
    Non-medical face masks – Specification