ASTM D4492-10
Standard Test Method for Analysis of Benzene by Gas Chromatography

Standard No.

ASTM D4492-10

Release Date

2010

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D4492-10

Scope

This test method is suitable for determining the concentrations of known impurities in finished benzene and for use as an integral quality control tool where benzene is either produced or used in a manufacturing procedure. It is generally applied to impurities such as nonaromatics containing nine carbons or less, toluene, C8 aromatics, and 1,4-dioxane.

Absolute purity cannot be determined if unknown impurities are present. Test Method D852 is generally used as a criteria for determining the absolute purity.

1.1 This test method covers the determination of normally occurring trace impurities in, and the purity of, finished benzene by gas chromatography.

1.2 This test method is applicable for benzene purities of 99.80 weight % or higher.

1.3 The lower limit for detection for non-aromatic impurities is 50 mg/kg. The lower limit of detection for individual aromatic hydrocarbon impurities 10 mg/kg. The lower limit of detection for 1,4-dioxane is 5 mg/kg.

1.4 In determining the conformance 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.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 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. For specific hazard statements, see Section 8.

ASTM D4492-10 Referenced Document

• ASTM D3437 Standard Practice for Sampling and Handling Liquid Cyclic Products
• ASTM D6809 Standard Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
• ASTM D852 Standard Test Method for Solidification Point of Benzene
• ASTM E1510 Standard Practice for Installing Fused Silica Open Tubular Capillary Columns in Gas Chromatographs
• ASTM E260 Standard Practice for Packed Column Gas Chromatography
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
• ASTM E355 Standard Practice for Gas Chromatography Terms and Relationships*， 2024-04-19 Update
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM D4492-10 history

• 2010 ASTM D4492-10 Standard Test Method for Analysis of Benzene by Gas Chromatography
• 2007 ASTM D4492-07 Standard Test Method for Analysis of Benzene by Gas Chromatography
• 2003 ASTM D4492-03 Standard Test Method for Analysis of Benzene by Gas Chromatography
• 1998 ASTM D4492-98 Standard Test Method for Analysis of Benzene by Gas Chromatography