ISO 1170:2020 PDF

Overview

ISO 1170:2020 - "Coal and coke - Calculation of analyses to different bases" provides standardized equations and procedures to convert analytical results for coal and coke between commonly used reporting bases. Typical bases covered include air-dried (ad), as-received (ar), dry (d), dry, ash‑free (daf) and dry, mineral‑matter‑free (dmmf). The standard also explains when and how to apply corrections (especially for mineral matter and water of hydration) before converting results.