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ASTM-D3760 2008(Redline)

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D3760-08 Standard Test Method for Analysis of Isopropylbenzene (Cumene) by Gas Chromatography (Redline)

Published By Publication Date Number of Pages
ASTM 2008 7
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Significance and Use

This test method is suitable for setting specifications on the materials referenced in 1.2 and for use as an internal quality control tool where isopropylbenzene is produced or is used in a manufacturing process. It may also be used in development or research work involving isopropylbenzene.

This test method is useful in determining the purity of isopropylbenzene with normal impurities present including diisopropylbenzenes. If extremely high boiling or unusual impurities are present in the isopropylbenzene, this test method would not necessarily detect them and the purity calculation would be erroneous.

Cumene hydroperoxide, if present, will yield decomposition products that will elute in the chromatogram thereby giving incorrect results.

The nonaromatic hydrocarbons commonly present from the isopropylbenzene manufacturing process will interfere with the determination of benzene when Column A in Table 1 is used.

The internal standard must be sufficiently resolved from any impurity and the isopropylbenzene peak.

1. Scope

1.1 This test method covers the determination of the purity of isopropylbenzene (cumene) by gas chromatography.

1.2 This test method has been found applicable to the measurement of impurities such as nonaromatic hydrocarbons, benzene, ethylbenzene, t -butylbenzene, n -propylbenzene, alpha-methylstyrene, sec-butylbenzene, and diisopropylbenzene, which are common to the manufacturing process of isopropylbenzene. Limit of detection for these impurities is 10 mg/kg (see 5.1).

1.3 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 E 29.

1.4 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 7.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

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

Other Document

OSHARegulations,29CF paragraphs 1910.1000 and 1910.1200 Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://www.access.gpo.gov.

Keywords

alpha methylstyrene; analysis by gas chromatography; benzene; butylbenzene; cumene; ethylbenzene; isopropylbenzene; nonaromatic hydrocarbons; propylbenzene; Benzene–paints/related coatings/materials; Gas chromatography (GC)–paints/related coatings/materials; Purity analysis–paints/related coatings/materials; Cumene (isopropylbenzene); Ethylbenzene; Methylstyrene; Butyl-benzene; Nonaromatic hydrocarbons; Propylbenzene;

ICS Code

ICS Number Code 71.080.10 (Aliphatic hydrocarbons)

DOI: 10.1520/D3760-08 ASTM International is a member of CrossRef.

Citing ASTM Standards

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ASTM-D3760 2008
$26.65