Historical
ISO 21398:2007
Hard coal and coke - Guidance to the inspection of mechanical sampling systems
ISO 21398:2007 sets out recommended practices for the inspection of mechanical sampling systems. ISO 21398:2007 serves as a reference for conformance with applicable ISO/TC 27 International Standards.
ISO 21398:2007 covers general considerations including precision, mineral variability and bias, establishment of inspection systems and inspection procedure.
International Organization for Standardization [iso]
