ASTM E1747-95(2019)

Standard Guide for Purity of Carbon Dioxide Used in Supercritical Fluid Applications

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NORM herausgegeben am 1.12.2019

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Bezeichnung normen: ASTM E1747-95(2019)
Ausgabedatum normen: 1.12.2019
SKU: NS-978345
Zahl der Seiten: 6
Gewicht ca.: 18 g (0.04 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM

Kategorie - ähnliche Normen:

Gases for industrial application

Die Annotation des Normtextes ASTM E1747-95(2019) :

This guide defines purity standards for carbon dioxide to ensure the suitability of liquefied carbon dioxide gas for use in supercritical fluid extraction (SFE) and supercritical fluid chromatography (SFC) applications. This guide defines quantitation, labeling, and statistical standards for impurities in carbon dioxide that are necessary for successful SFE or SFC laboratory work, and it suggests methods of analysis for quantifying these impurities. These contaminants are those components that either cause detector signals that interfere with those of the target analytes or physically impede the SFE or SFC experiment. Also, this guide is provided for use by specialty gas suppliers who manufacture carbon dioxide specifically for SFE or SFC applications. SFE or SFC CO2 products offered with a claim of adherence to this guide will meet certain absolute purity and contaminant detectability requirements matched to the needs of current SFE or SFC techniques.

fluid purity, supercritical carbon dioxide, supercritical fluid chromatography, supercritical fluid extraction ,, ICS Number Code 71.100.20 (Gases for industrial application)

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