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TOS forum Issue 11 (2022)
(Proceedings of WCSB10)

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The complex futility of the Liberation Factor

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Liberation factor for ‘closely sieved’ material

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Theory of Sampling and QAQC enabling the application and expectations of new technology and data processing

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Calibration of K and alpha (α) for bulk commodities

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Proactive rolling bias test applied on sample stations

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Extensions to the Theory of Sampling 2. The Sampling Uncertainty (SU), and SU as alternative to variographic analysis

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Process optimization by real time analysis of liquids’ composition in metal & mining

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Monitoring the lot mean and uncertainty estimates by piecewise local modelling

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Challenges in quality assurance and quality control systems development

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Economic benefits of improving precision

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Implementing proactive quality assurance quality control (QAQC) and quality management (QM) practices at coal testing laboratories

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Differentiating analytical error from sampling errors in PAT methods through variographic analysis

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Comminution sizes in sampling calculations

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The sampling interface—A critical Theory of Sampling success factor in process sampling and PAT

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Online elemental analysis for process control in the mineral processing industry

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Implementation of a QAQC program for in-situ grade control by pulsed fast and thermal neutron activation methods

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Process analytical technologies for precise, timely and representative elemental and moisture measurement for conveyed flows

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Moisture determination. Mass loss on drying – commercial sampling washed away

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Case study: improved sampling of iron sludge at Glencore Nikkelverk

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Choosing metallurgical samplers or static cutters for process control in slurry: when or why to avoid the increment delimitation error

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Cross belt sampler: mechanical design of the World’s largest hammer sampler for bauxite export contractual requirements

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Fake data? The need for Theory of Sampling concepts in environmental research and investigations

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Representative sampling for condition monitoring of in-service wind turbine bearings: challenges and solutions over 10 years

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Experimental determination of the constitutional heterogeneity for sampling of waste printed circuit boards

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Sampling in a precious metals refining plant—A practical approach for a complex problem

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Challenges of sampling grain for mycotoxin analysis

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Estimation of uncertainty for measuring metals content in waste printed circuit boards

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Sampling of high-nugget conglomerates from the Western Australian Pilbara: bulk sampling at the Beatons Creek gold project, Nullagine

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Mobile dust sampling device for dust filter generation at a Ni refinery

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The evolution of the mechanically agitated hopper in Anglo American Platinum

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Sampling for industry 4.0 – sensor signal acquisition inspired by the Theory of Sampling (TOS)

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The ongoing challenge of representative sampling of bulk mineral commodities

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Understanding sampling variation – a vital aspect of industrial research experiments

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A comparison between conventional blast hole sampling and diamond core drilling for copper grade at the Antapaccay mine

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Case studies using Visman and Ingamells sampling approaches

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ISO 13909 compliant contractual payment station coal sampling plant: process design and equipment selection for chemical, physical and moisture sampling

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The state of organized sampling work for minerals in China since WCSB9

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Sampling for resource evaluation and grade control in an underground gold operation: a case of compromise

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The sampling and phase characterisation of black mass

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Multivariate methods for improved geometallurgy sampling

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Framing TOS in risk assessment: an outreach perspective for the future

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Gy’s discrete heterogeneity and the grouping and segregation variance

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The process of production certified reference materials for silicon industry

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Estimating the heterogeneity invariant using size-density classes – the case of contaminated soil and complex materials

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Smart control of HVAC based on measurements of indoor radon concentration

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X-ray computed tomography (XCT) for characterization of particulate materials heterogeneity: embrace heterogeneity — create value with separation

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The “Gandalf” soil sampling project at a former industrial site in Copenhagen, Denmark: evaluating soil classification reliability

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Sample preparation according to Ian Devereux: an unofficial guide

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COVID-19: lessons for developing and commissioning new mining technologies

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ISO 8685 compliant contractual ship-loading export facility: bauxite sampling plant process design and equipment selection for chemical sampling

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Applications of the sampling uncertainty (SU)

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The extended Gy’s formula

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Representative sampling for food and feed materials: a critical need for food/feed safety — Special Edition Section of Journal AOAC International

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DS3077—Horizontal Standard revision after 10 years and induction as an ISO Standard

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