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Description of ASTM-B954 2007ASTM B954 - 07Standard Test Method for Analysis of Magnesium and Magnesium Alloys by Atomic Emission SpectrometryActive Standard ASTM B954 | Developed by Subcommittee: B07.04 Book of Standards Volume: 02.02 ASTM B954Significance and Use The metallurgical properties of magnesium and its alloys are highly dependant on chemical composition. Precise and accurate analyses are essential to obtaining desired properties, meeting customer specifications and helping to reduce scrap due to off-grade material. This test method is applicable to chill cast specimens as defined in Practice B 953 and can also be applied to other types of samples provided that suitable reference materials are available. 1. Scope 1.1 This test method describes the analysis of magnesium and its alloys by atomic emission spectrometry. The magnesium specimen to be analyzed may be in the form of a chill cast disk, casting, sheet, plate, extrusion or some other wrought form or shape. The elements covered in the scope of this method are listed in the table below. Note 1The concentration ranges given in the above scope are estimates based on two manufacturers observations and data provided by a supplier of atomic emission spectrometers. The range shown for each element does not demonstrate the actual usable analytical range for that element. The usable analytical range may be extended higher or lower based on individual instrument capability, spectral characteristics of the specific element wavelength being used and the availability of appropriate reference materials. 1.2 This test method is suitable primarily for the analysis of chill cast disks as defined in Sampling Practice B 953. Other forms may be analyzed, provided that: (1) they are sufficiently massive to prevent undue heating, (2) they allow machining to provide a clean, flat surface which creates a seal between the specimen and the spark stand, and (3) reference materials of a similar metallurgical condition (spectrochemical response) and chemical composition are available. This standard does not purport to address all of the safety concerns, if any, associated with its use. 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. Specific safety and health statements are given in Section 10.
ASTM Standards B953 Practice for Sampling Magnesium and Magnesium Alloys for Spectrochemical Analysis E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials E158 Practice for Fundamental Calculations to Convert Intensities into Concentrations in Optical Emission Spectrochemical Analysis E172 Practice for Describing and Specifying the Excitation Source in Emission Spectrochemical Analysis E305 Practice for Establishing and Controlling Atomic Emission Spectrochemical Analytical Curves E406 Practice for Using Controlled Atmospheres in Spectrochemical Analysis E826 Practice for Testing Homogeneity of a Metal Lot or Batch in Solid Form by Spark Atomic Emission Spectrometry E876 Practice for Use of Statistics in the Evaluation of Spectrometric Data E1257 Guide for Evaluating Grinding Materials Used for Surface Preparation in Spectrochemical Analysis E1329 Practice for Verification and Use of Control Charts in Spectrochemical Analysis E1507 Guide for Describing and Specifying the Spectrometer of an Optical Emission Direct-Reading Instrument Keywords atomic emission spectrometry; magnesium; magnesium alloys; optical emission spectrometry; ICS Code ICS Number Code 77.040.30 (Chemical analysis of metals); 77.120.20 (Magnesium and magnesium alloys) DOI: 10.1520/B0954-07 ASTM International is a member of CrossRef. ASTM B954The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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