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Standard Test Method for Determining Impurities in High-Purity Ethylbenzene by Gas Chromatography
Automatische name übersetzung:
Standard Test Methode zur Bestimmung der Verunreinigungen in hochreinen Ethylbenzol mittels Gaschromatographie
NORM herausgegeben am 1.6.2012
Bezeichnung normen: ASTM D5060-12
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.6.2012
SKU: NS-29687
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
ethylbenzene, ethylbenzene purity, impurities in ethylbenzene, ICS Number Code 71.080.15 (Aromatic hydrocarbons)
Significance and Use | ||||||||||||||
4.1 The test is suitable for setting specifications on ethylbenzene and for use as an internal quality control tool where ethylbenzene is used in manufacturing processes. It may be used in development or research work involving ethylbenzene. 4.2 Purity is commonly reported by subtracting the determined expected impurities from 100 %. Absolute purity cannot be determined if unknown impurities are present. |
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1. Scope | ||||||||||||||
1.1 This test method describes the analysis of normally occurring impurities in, and the purity of, ethylbenzene by gas chromatography. Impurities determined include nonaromatic hydrocarbons, benzene, toluene, xylenes, cumene, and diethylbenzene isomers. 1.2 This test method is applicable for impurities at concentrations from 0.001 to 1.000 % and for ethylbenzene purities of 99 % or higher. At this level, 1.3 In determining the performance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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.
Standard Guide for Quality Control and
Quality Assurance Procedures for Aromatic Hydrocarbons and Related
Materials (Includes all amendments and changes 10/20/2020). Standard Practice for Gas Chromatography
Terms and Relationships (Includes all amendments and changes
4/28/2021). Standard Practice for Using Significant
Digits in Test Data to Determine Conformance with
Specifications Standard Practice for Installing Fused
Silica Open Tubular Capillary Columns in Gas Chromatographs Standard Practice for Preparation of
Liquid Blends for Use as Analytical Standards Standard Practice for Sampling and
Handling Liquid Cyclic Products |
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