Iron ores. Guidelines for the use of certified reference materials (CRMs) Ingestion-build-190310 Such guidance is given in

Such guidance is given in BS 7843‑1

Why should you use BS EN 15058 - Non-dispersive infrared spectrometry

BS EN 14354 on wood veneer floor coverings is useful for:

Why should you use ISO/TS 18507 - Surface chemical analysis

Machine designers

Iron ores. Guidelines for the use of certified reference materials (CRMs) Ingestion-build-190310 Such guidance is given in1 Scope This International Standard describes recommended procedures for the use of CRMs that have been prepared and certified in accordance with ISO 11459. Such CRMs are used by laboratories to carry out the trueness tests as specified in the various International Standards for the chemical analysis of iron ores, to verify the analysis of shipment samples and the ongoing reliability of analytical results.