GSO ISO 18191:2021
ISO 18191:2015
Gulf Standard
Current Edition
·
Approved on
01 July 2021
Water quality — Determination of pHt in sea water — Method using the indicator dye m-cresol purple
GSO ISO 18191:2021 Files
No files for this standard are available in the store currently.
GSO ISO 18191:2021 Scope
ISO 18191:2015 specifies a spectrophotometric determination of the pHt of sea water on the total hydrogen ion concentration pH scale using the indicator dye m-cresol purple. The total hydrogen ion concentration, [H+]t, is expressed as moles per kilogram of sea water. The method is suitable for assaying oceanic levels of pHt 7,4 to 8,2 for normal sea water of practical salinity ranging from 20 to 40.
Best Sellers From Chemical and Textile Sector
GSO 1943:2024
Gulf Technical Regulation
Cosmetic Products – Safety Requirements of Cosmetics and Personal Care Products
GSO 151:2022
Gulf Standard
Synthetic Detergents –Household Synthetic Detergents Powder
GSO 2555:2021
Gulf Technical Regulation
General Safety Requirements of Household Detergents
YSMO GSO 2555:2023
GSO 2555:2021
Yemeni Standard
General Safety Requirements of Household Detergents
Recently Published from Chemical and Textile Sector
GSO ISO 2808:2025
ISO 2808:2019
Gulf Standard
Paints and varnishes — Determination of film thickness
GSO 2580:2025
Gulf Standard
Single Use - Disposable Plastic Tableware
GSO ISO 17420-4:2025
ISO 17420-4:2021
Gulf Standard
Respiratory protective devices — Performance requirements — Part 4: Requirements for supplied breathable gas RPD
GSO 2582:2025
Gulf Standard
Paints and varnishes-Emulsion Paints for Interior and Exterior Uses