OREAS 725b

OREAS 725b has been prepared from crystalline vein graphite rich ore blended with granodiorite. The vein type graphite material was sourced from the Queens Graphite Mine (QGM) in the Matale/Kurunegala Project area in central Sri Lanka. The barren I-type hornblende-bearing granodiorite was sourced from the Late Devonian Lysterfield granodiorite complex located in eastern Melbourne, Australia.

OREAS 725b has been characterised for Total Graphite Carbon (TGC) by dilute acid (HCl) digestion followed by roasting at approx. 425 °C, then analysis by infrared combustion furnace.

Certified values for applicable analytes are operationally defined for each method, with results under OREAS ISO 17034 scope of accreditation.

Note: Analyte values are indicative only and may change when certified.

						

										

						
							

								Analyte
								
									
										Indicative Value									
								
								1SD
								Expanded Uncertainty Low
								Expanded Uncertainty High
								Method
							

						
						
															

									C-(Graphite), Carbon, graphitic (wt.%)
									24.50
									TBD
									TBD
									TBD
									Infrared Combustion
								

													
					

				


				


									
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