Guyana National Bureau of Standards |  Portal 

    Standards

    Methods of sampling and testing for Water and wastewater: Part 7 – Nitrogen (Ammonium)
    Methods of sampling and testing for water and wastewater- Part 12: Chloride
    Methods of sampling and testing for Water and wastewater: Part 13- Surfactants
    Methods of sampling and testing for Water and wastewater- Part 14: Phenols
    Methods of sampling and testing for water and wastewater – Part 16 : oil and grease
    Methods of sampling and testing for water and wastewater : Part 18-Lead
    Methods of sampling and testing water and wastewater: Part 22 - Zinc
    Methods of sampling and testing for Water and wastewater: Part 23- Nickel
    Methods of sampling and testing for water and wastewater : Part 24 - Iron
    Environmental labels and declarations - Self - declared environmental Claims (Type 1 environmental labelling)