ISO 15237:2025 PDF

Overview

ISO 15237:2025 - Coal - Determination of total mercury specifies a reference laboratory method for measuring the total mercury mass fraction in coal. The third edition updates procedures for sample handling, introduces a direct combustion option, modifies formulae and reporting requirements, and remains the benchmark for validating faster instrumental methods. The standard emphasizes quantitative recovery of mercury - a volatile element - by strict procedural control.