ASTM E1747-95(2011)
Standard Guide for Purity of Carbon Dioxide Used in Supercritical Fluid Applications

Standard No.

ASTM E1747-95(2011)

Release Date

1995

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E1747-95(2019)

Latest

ASTM E1747-95(2019)

Scope

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 E1449 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 carbon dioxide (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 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 limitations prior to use.

ASTM E1747-95(2011) Referenced Document

• ASTM D2504 Standard Test Method for Noncondensable Gases in C2 and Lighter Hydrocarbon Products by Gas Chromatography
• ASTM D3670 Standard Guide for Determination of Precision and Bias of Methods of Committee D22*， 2022-09-01 Update
• ASTM D3686 Standard Practice for Sampling Atmospheres to Collect Organic Compound Vapors (Activated Charcoal Tube Adsorption Method)
• ASTM D3687 Standard Practice for Analysis of Organic Compound Vapors Collected by the Activated Charcoal Tube Adsorption Method*， 2001-10-10 Update
• ASTM D4178 Standard Practice for Calibrating Moisture Analyzers*， 2017-10-01 Update
• ASTM D4532 Standard Test Method for Respirable Dust in Workplace Atmospheres*， 1997-04-19 Update
• ASTM E1449 Standard Guide for Supercritical Fluid Chromatography Terms and Relationships*， 2019-12-01 Update
• ASTM E1510 Standard Practice for Installing Fused Silica Open Tubular Capillary Columns in Gas Chromatographs*， 2021-04-01 Update
• ASTM E260 Standard Practice for Packed Column Gas Chromatography*， 2019-09-01 Update
• ASTM E355 Standard Practice for Gas Chromatography Terms and Relationships*， 2024-04-19 Update
• ASTM E594 Standard Practice for Testing Flame Ionization Detectors Used in Gas or Supercritical Fluid Chromatography*， 2019-09-01 Update
• ASTM E697 Standard Practice for Use of Electron-Capture Detectors in Gas Chromatography*， 2019-09-01 Update

ASTM E1747-95(2011) history

• 2019 ASTM E1747-95(2019) Standard Guide for Purity of Carbon Dioxide Used in Supercritical Fluid Applications
• 1995 ASTM E1747-95(2011) Standard Guide for Purity of Carbon Dioxide Used in Supercritical Fluid Applications
• 1995 ASTM E1747-95(2005) Standard Guide for Purity of Carbon Dioxide Used in Supercritical Fluid Applications
• 1995 ASTM E1747-95(2000) Standard Guide for Purity of Carbon Dioxide Used in Supercritical Fluid Applications
• 1995 ASTM E1747-95 Standard Guide for Purity of Carbon Dioxide Used in Supercritical Fluid Applications