5.3 This test method is designed to mobilize potential contaminants present in the solids, so that the resulting extract can be used to assess leachate that could potentially be produced from mine rock in the field. It is assumed that all who use this method will be trained analysts capable of performing skillfully and safely. Products and Services / Standards & Publications / Standards Products, Active Standard ASTM E2242 | Developed by Subcommittee: E01.02, Permissions to reprint documents can be acquired throughCopyright Clearance Center   This standard does not purport to address all of the safety You may withdraw your consent at any time. dissolution and mobility of certain constituents by meteoric as well as subscriptions and other promotional notifications. 4 (4.75-mm) Sieve and Coarser for Metal-Bearing Ores and Related Materials, E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method, E877 Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical Composition and Physical Properties, E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory, E1601 Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method, ICS Number Code 73.060.01 (Metalliferrous minerals and their concentrates in general), ASTM E2242-13, Standard Test Method for Column Percolation Extraction of Mine Rock by the Meteoric Water Mobility Procedure, ASTM International, West Conshohocken, PA, 2013, www.astm.org. Please try again in a few minutes. This test method is intended to describe the procedure for 2. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. concerns, if any, associated with its use. This test method covers the determination of dissolved, total-recoverable, or total elements in drinking water, ground water, surface water, domestic, commercial or industrial wastewaters,2,3 within... Industrial Computers and Embedded Systems, Material Handling and Packaging Equipment, Electrical and Electronic Contract Manufacturing, ASTM D6234 - Standard Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure, ASTM D1193 - Standard Specification for Reagent Water, ASTM D1293 - Standard Test Methods for pH of Water, ASTM E1601 - Standard Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method, ASTM E389 - Standard Test Method for Particle Size or Screen Analysis at No. Notify me about educational white papers. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882. Related Products. standard. The values stated in SI units are to be regarded as the Extraction is the separation of medicinally active portions of plant using selective solvents through standard procedures. The extractions were carried out with hexane at constant temperature. 1.2 This test method is intended to describe the procedure for performing column percolation extractions only. 1.1 This test method provides a procedure for the column percolation extraction of mine rock in order to determine the potential for dissolution and mobility of certain constituents by meteoric water. FREE The documents listed below are referenced within the subject standard but are not provided as part of the standard. The optimised procedure used a cartridge which was activated with 10 ml of 0.1 M sodium hydroxide solution (percolation rate 3 ml/min). The different parameters which affected the extraction procedure were studied and optimised to establish the optimal conditions for maximum recovery of organic acids and minimum extraction of interferences. I would say leave the oil pressing and alcoholic extraction to the big processors and buy pure neem seed oil and extracts, of known concentration, from reputable, organic neem product suppliers. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard. It does not describe all types of sampling and analytical requirements that may be associated with its application. ). 1.1 This test method provides a procedure for the column percolation extraction of mine rock in order to determine the potential for dissolution and mobility of certain constituents by meteoric water. D6234 Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure, D7237 Test Method for Free Cyanide with Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection, E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials, E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials, E389 Test Method for Particle Size or Screen Analysis at No. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. performing column percolation extractions only. 5.4 This test method has not been demonstrated to simulate actual site leaching conditions. limitations prior to use. 1.1 This test method provides a procedure for the column percolation extraction of mine rock in order to determine the potential for dissolution and mobility of certain constituents by meteoric water.

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