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Standard Guide for Quantitative Analysis by Energy-Dispersive Spectroscopy (Includes all amendments and changes 11/19/2019).
Přeložit název
NORMA vydána dne 1.11.2019
Označení normy: ASTM E1508-12a(2019)
Datum vydání normy: 1.11.2019
Kód zboží: NS-976110
Počet stran: 9
Přibližná hmotnost: 27 g (0.06 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
EDS, elemental analysis, energy-dispersive spectroscopy, light element, matrix correction, microanalysis, phi-rho-z, quantitative analysis, spectrum, standardless analysis, standards, X ray, X-ray microanalysis, ZAF ,, ICS Number Code 71.040.50 (Physicochemical methods of analysis)
Significance and Use | ||||||||
5.1 This guide covers procedures for quantifying the elemental composition of phases in a microstructure. It includes both methods that use standards as well as standardless methods, and it discusses the precision and accuracy that one can expect from the technique. The guide applies to EDS with a solid-state X-ray detector used on an SEM or EPMA. 5.2 EDS is a suitable technique for routine quantitative analysis of elements that are 1) heavier than or equal to sodium in atomic weight, 1.1 This guide is intended to assist those using energy-dispersive spectroscopy (EDS) for quantitative analysis of materials with a scanning electron microscope (SEM) or electron probe microanalyzer (EPMA). It is not intended to substitute for a formal course of instruction, but rather to provide a guide to the capabilities and limitations of the technique and to its use. For a more detailed treatment of the subject, see Goldstein, et al. 1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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