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ASTM E1747-95(2005)

Historical Reaffirmation

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

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1.1 This guide defines purity standards for carbon dioxide to ensure the suitability of liquefied carbon dioxide gas for use in SFE and SFC applications (see Guide E 1449 for definitions of terms). 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.

1.2 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. The use of this guide allows different SFE or SFC CO2 product offerings to be compared on an equal purity basis.

1.3 This guide considers contaminants to be those components that either cause detector signals that interfere with those of the target analytes or physically impede the SFE or SFC experiment.

1.4 &solely-SI-units;

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.


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.
SDO ASTM: ASTM International
Document Number E1747
Publication Date Sept. 1, 2005
Language en - English
Page Count 6
Revision Level 95(2005)
Supercedes
Committee E13.19
Publish Date Document Id Type View
Jan. 1, 1995 E1747-95 Revision
Dec. 1, 2019 E1747-95R19 Reaffirmation
Nov. 1, 2011 E1747-95R11 Reaffirmation
Sept. 1, 2005 E1747-95R05 Reaffirmation
Jan. 1, 1995 E1747-95R00 Reaffirmation