Copper, lead, zinc and nickel concentrates — Experimental methods for checking the precision of samp...
This document specifies methods for checking the precision of primary sampling, sample processing, chemical analysis, physical testing and determination of moisture content of copper, lead, zinc and nickel concentrates being carried out in accordance with the methods specified in ISO 12743, expressed in terms of standard deviations.
Surface chemical analysis — Total reflection X-ray fluorescence analysis of water
ISO 20289:2018 provides a chemical method for technicians working with Total Reflection X-ray Fluorescence (TXRF) instrumentation to perform measurements of water samples, according to good practices, with a defined degree of accuracy and precision. Target users are identified among laboratories performing routine analysis of large numbers of samples, which also comply with ISO/IEC 17025.
ISO…
Containment high efficiency filtration unit (CHEFU) in ventilation system of biosafety facilities
This document specifies terms and definitions, classification and marking, materials, requirements, test methods, inspection rules as well as marking, packaging, transport and storage of exhaust high efficiency filtration unit（EFU）used in risky biosafety facilities.
This document is applicable to EFU used to remove harmful bio-aerosol in biosafety facilities. Reference may be made to this…
