Accredited Reference Material is used for the calibration of coal analytical instruments, control samples as well as for the training of staff. Reference material is accredited to the requirements of ISO/IEC 17034 - General requirements for the competence of reference material producers. Our catalogue is available below as well as our schedule of accreditation.
Accredited Reference Material Catalogue 31.12.2025 (pdf)
DownloadHardgrove Index Catalogue (xlsx)
DownloadAccredited Reference Material TS ARM 062 (pdf)
DownloadCertificate of Accreditation (pdf)
DownloadBenzoic acid certificate Coal Concepts 01202501 ARM BA 001 - Rev 00 (pdf)
DownloadAsh Catalogue Jan 2026 (xlsx)
DownloadCoke Catalogue 1.2026 (xlsx)
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