Download or read book Sampling of Particulate Materials Theory and Practice written by Pierre Gy and published by Elsevier. This book was released on 2012-12-02 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in Geomathematics 4: Sampling of Particulate Materials: Theory and Practice reviews the theory and practice of sampling particulate solids, such as ores and concentrates. With examples borrowed from the mining, metallurgical, and cement industries, the book examines particulate materials of vegetable and mineral origin, including cereals, oil seeds, sugar beets, granulated drosses or slags, bars, plates, and ingots. Organized into nine parts encompassing 34 chapters, this volume begins with an overview of the theory of sampling and sampling-error generating mechanisms. It then discusses the continuous selection and discrete models of the increment sampling process and the materialization of punctual increments. It explains the splitting process and its practical implementation in sampling. Lot and sample preparation, resolution of sampling problems, and problems associated with commercial sampling are also discussed. The book also describes the detection of measurement or sampling biases and inconspicuous losses of material, and the design of automatic sampling plants. This book is a valuable resource for geologists, mining engineers, metallurgists, and analysts.
Download or read book Gy s Particulate Material Sampling Theory written by RA. Bilonick and published by . This book was released on 1990 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: An outline of Gy's contributions to particulate material sampling is presented. Gy's theory provides a comprehensive framework that integrates all aspects of sampling particulate materials such as coal, ores, pulps, industrial and municipal effluents, and environmental contaminants. The theory defines and quantifies the two types of heterogeneity (constitution and distribution) and shows how they can be empirically measured using either expensive variographic information or often more readily available size--density information. These results provide principles for constructing sampling devices free from bias and excessive noise. They also provide practical methods for realistically estimating sampling precision for both increment processes (e.g. cross-stream samplers) and splitting processes (e.g. riffle splitters) without requiring significant additional work. The theory also provides practical methods for investigating the potential bias in sampling equipment and methods.
Download or read book Pierre Gy s Sampling Theory and Sampling Practice Second Edition written by Francis F. Pitard and published by CRC Press. This book was released on 1993-08-03 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pierre Gy's Sampling Theory and Sampling Practice, Second Edition is a concise, step-by-step guide for process variability management and methods. Updated and expanded, this new edition provides a comprehensive study of heterogeneity, covering the basic principles of sampling theory and its various applications. It presents many practical examples to allow readers to select appropriate sampling protocols and assess the validity of sampling protocols from others. The variability of dynamic process streams using variography is discussed to help bridge sampling theory with statistical process control. Many descriptions of good sampling devices, as well as descriptions of poor ones, are featured to educate readers on what to look for when purchasing sampling systems. The book uses its accessible, tutorial style to focus on professional selection and use of methods. The book will be a valuable guide for mineral processing engineers; metallurgists; geologists; miners; chemists; environmental scientists; and practitioners in chemical, cement, steel, power generation, high performance materials, recycling, cereal, and pharmaceutical industries.
Download or read book Sampling of Particulate Materials written by Pierre Gy and published by Elsevier Science & Technology. This book was released on 1979 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sampling of Heterogeneous and Dynamic Material Systems written by P.M. Gy and published by Elsevier. This book was released on 1992-10-23 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although sampling errors inevitably lead to analytical errors, the importance of sampling is often overlooked. The main purpose of this book is to enable the reader to identify every possible source of sampling error in order to derive practical rules to (a) completely suppress avoidable errors, and (b) minimise and estimate the effect of unavoidable errors. In short, the degree of representativeness of the sample can be known by applying these rules. The scope covers the derivation of theories of probabilistic sampling and of bed-blending from a complete theory of heterogeneity which is based on an original, very thorough, qualitative and quantitative analysis of the concepts of homogeneity and heterogeneity. All sampling errors result from the existence of one form or another of heterogeneity. Sampling theory is derived from the theory of heterogeneity by application of a probabilistic operator to a material whose heterogeneity has been characterized either by a simple scalar (a variance: zero-dimensional batches) or by a function (a variogram: one-dimensional batches). A theory of bed-blending (one-dimensional homogenizing) is then easily derived from the sampling theory. The book should be of interest to all analysts and to those dealing with quality, process control and monitoring, either for technical or for commercial purposes, and mineral processing. Although this book is primarily aimed at graduates, large portions of it are suitable for teaching sampling theory to undergraduates as it contains many practical examples provided by the author's 30-year experience as an international consultant. The book also contains useful source material for short courses in Industry.
Download or read book Sampling of particulate materials written by Pierre M. Gy and published by . This book was released on 1979 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory of Sampling and Sampling Practice Third Edition written by Francis F. Pitard and published by CRC Press. This book was released on 2019-01-10 with total page 945 pages. Available in PDF, EPUB and Kindle. Book excerpt: A step-by-step guide for anyone challenged by the many subtleties of sampling particulate materials. The only comprehensive document merging the famous works of P. Gy, I. Visman, and C.O. Ingamells into a single theory in a logical way - the most advanced book on sampling that can be used by all sampling practitioners around the world.
Download or read book Sampling of Particulate Materials written by Pierre M. Gy and published by . This book was released on 1982 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidance for Obtaining Representative Analytical Laboratory Subsamples from Particulate Laboratory Samples written by National Exposure Research Laboratory (U.S.) and published by . This book was released on 2003 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ongoing research program has been established to experimentally verify the application of the Gy theory to environmental samples, which serves as a supporting basis for the materials presented in this guidance. Research results from studies performed by the United States Environmental Protection Agency (U.S. EPA) have confirmed that the application of the Gy sampling theory to environmental heterogeneous particulate materials is the appropriate state-of-the-science approach for obtaining representative laboratory subsamples. This document provides general guidelines for obtaining representative subsamples for the laboratory analysis of particulate materials using the 'correct' sampling practices and the 'correct' sampling devices based on Gy theory. Besides providing background and theory, this document gives guidance on: sampling and comminution tools, sample characterization and assessment, developing a sampling plan using a general sampling strategy, and reporting recommendations. Considerations are given to: the constitution and the degree of heterogeneity of the material being sampled, the methods used for sample collection (including what proper tools to use), what it is that the sample is supposed to represent, the mass (sample support) of the sample needed to be representative, and the bounds of what 'representative' actually means. A glossary and a comprehensive bibliography have been provided, which should be consulted for more details.
Download or read book Theory of Sampling and Sampling Practice Third Edition written by Francis F. Pitard and published by CRC Press. This book was released on 2019-01-10 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: A step-by-step guide for anyone challenged by the many subtleties of sampling particulate materials. The only comprehensive document merging the famous works of P. Gy, I. Visman, and C.O. Ingamells into a single theory in a logical way - the most advanced book on sampling that can be used by all sampling practitioners around the world.
Download or read book A Primer for Sampling Solids Liquids and Gases written by Patricia L. Smith and published by SIAM. This book was released on 2001-01-01 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ideas of Pierre Gy presented in lay terms, allowing concepts and principles to be easily grasped and applied.
Download or read book Theory and Practice of Particulate Sampling an Engineering Approach written by Geoffrey John Lyman and published by . This book was released on 2019 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: The text presents a complete explanation and derivation of the statistical theory of sampling of particulate materials which is based on the single assumption of Poisson distributed particle numbers in mechanically correct samples. The material presented goes beyond the theory developed by P M Gy and provides the complete sampling distribution. The work is entirely self-contained with extensive appendices. Practical application of the results is supported by numerous examples including application to sampling of minerals, food, and packaged commodities and environmental sampling.
Download or read book Approaches in Material Sampling written by Bastiaan Geelhoed and published by IOS Press. This book was released on 2010 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brings together the different fundamental approaches to the problem of material sampling. This book is suitable for scientists working in the research area of material sampling and companies or institutions that have to solve practical sampling problems.
Download or read book Sampling of Particulate Materials written by Bastiaan Geelhoed and published by IOS Press. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This is a Ph.D. thesis. There are many chemical, physical or biological properties of solid materials that are of crucial importance for economic, agricultural, environmental or health-related reasons. These properties are often estimated using chemical, physical or biological tests on one or more laboratory samples. During the drawing of the bulk sample from which the laboratory sample is extracted, sampling errors can occur. These sampling errors are caused by the sampling of non-identical particles. Contents include: Introduction, Review of current sampling theories, Size-based multinomial selections: a model for sampling, Size-based sampling theory, Estimation of the variance of the sample concentration, Evaluation of bias, Experimental evaluation of the theory developed, Minimum sample mass, Final remarks."
Download or read book Pierre GYs Sampling Theory Sampling Prac written by Francis F. Pitard and published by CRC-Press. This book was released on 1989-08-31 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sampling for Analytical Purposes written by Pierre Gy and published by John Wiley & Sons. This book was released on 1998-06-29 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr Gy, a pioneer in every sense of the word, has spent 50 years studying the best way to take a truly representative sample. His greatest achievement perhaps has been to introduce science into the black art of sampling. The now famous and widely used formula bearing his name means that sampling is no longer a lottery but an essential analytical tool. This very readable and practical book, written by Pierre Gy himself, is the first simple guide to Pierre Gy s method to be translated into English. Although Dr Gy s formula was originally developed for the sampling of solid material in mines, etc., the theoretical arguments are equally valid for the sampling of liquids and multi-phase media. This book is as interesting as a historical perspective as it is useful for the practising modern day analyst.
Download or read book Unit Operations of Particulate Solids written by Enrique Ortega-Rivas and published by CRC Press. This book was released on 2016-04-19 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Suitable for practicing engineers and engineers in training, this book covers the most important operations involving particulate solids. Through clear explanations of theoretical principles and practical laboratory exercises, the text provides an understanding of the behavior of powders and pulverized systems. It also helps readers develop skills for operating, optimizing, and innovating particle processing technologies and machinery in order to carry out industrial operations. The author explores common bulk solids processing operations, including milling, agglomeration, fluidization, mixing, and solid-fluid separation.
