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جاري تصفية النتائج، الرجاء الانتظار...
ISO 12744:2025
مواصفة قياسية دولية
Copper, lead, zinc and nickel concentrates — Experimental methods for checking the precision of sampling
ISO 17887:2025
مواصفة قياسية دولية
Traceability of rare earths in the supply chain from separated products to permanent magnets
ISO/TS 15855:2025
مواصفة قياسية دولية
Copper, lead and zinc sulfide concentrates — Step-by-step procedure for the testing of static scales
ISO 13548:2025
مواصفة قياسية دولية
Copper and zinc sulfide concentrates — Determination of fluorine content by sodium hydroxide fusion and fluoride ion selective electrode detection
ISO 11456:2025
مواصفة قياسية دولية
Copper and zinc sulfide concentrates — Determination of silver content — Acid digestion and flame atomic absorption spectrometric or inductively coupled plasma optical emission spectrometric method
ISO 3483:2023
مواصفة قياسية دولية
Copper and zinc sulfide concentrates — Determination of thallium — Acid digestion and inductively coupled plasma-mass spectrometry
ISO 13546:2021
مواصفة قياسية دولية
Copper concentrates — Determination of mercury content — Cold vapour atomic absorption spectrometric method
ISO 12743:2021
مواصفة قياسية دولية
Copper, lead, zinc and nickel concentrates — Sampling procedures for determination of metal and moisture content
ISO 12742:2020
مواصفة قياسية دولية
Copper, lead and zinc sulfide concentrates — Determination of transportable moisture limits — Flow-table method
ISO 15661:2020
مواصفة قياسية دولية
Copper and nickel sulfide ores and concentrates — Determination of total chlorine content — Alkaline fusion and potentiometric titration method
ISO 19976-2:2019
مواصفة قياسية دولية
Copper, lead and zinc sulfide concentrates — Determination of cadmium — Part 2: Acid digestion and inductively coupled plasma atomic emission spectrometric method
ISO 19976-1:2019
مواصفة قياسية دولية
Copper, lead and zinc sulfide concentrates — Determination of cadmium — Part 1: Flame atomic absorption spectrometric method