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ASTM D 7504 : 2015 : EDT 1

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number
Available format(s)

Hardcopy , PDF

Superseded date

11-09-2015

Language(s)

English

Published date

01-07-2015

1.1This test method covers the determination of total nonaromatic hydrocarbons and monocyclic aromatic hydrocarbons in benzene, toluene, ethylbenzene, p-xylene, o-xylene, styrene and mixed xylenes by gas chromatography. The purity of benzene, toluene, ethylbenzene, p-xylene, o-xylene, styrene and mixed xylenes is also calculated. Similar test methods, using the internal standard calibration technique and the external standard calibration technique, are Test Methods D2360, D3797, D4492, D5060, D5135, D5917, and D6563 respectively.

1.2A small amount of benzene in toluene, ethylbenzene, p-xylene, o-xylene, styrene and mixed xylenes may not be distinguished from the non-aromatics and the concentrations are determined as a composite (see 6.1).

1.3The limit of detection (LOD) is 0.0002 wt % and limit of quantitation (LOQ) is 0.0006 wt % for impurities in toluene, mixed xylenes, p-xylene, o-xylene, ethylbenzene, benzene, and styrene.

1.4In 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.

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

1.6This 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.

Committee
D 16
DocumentType
Test Method
Pages
14
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 5211 : 2017 Standard Specification for Xylenes for <emph type="ital">p</emph>-Xylene Feedstock
ASTM D 7124 : 2017 Standard Specification for Benzene for Use with Zeolite Based Catalysts
ASTM D 7185 : 2017 Standard Specification for Low Toluene Low Dioxane (LTLD) Benzene
ASTM D 2359 : 2018 : REV A Standard Specification for Refined Benzene-535
ASTM D 843 : 2019 Standard Specification for Nitration Grade Xylene
ASTM D 2699 : 2019 Standard Test Method for Research Octane Number of Spark-Ignition Engine Fuel
ASTM D 5606 : 2017 Standard Specification for Toluene for Toluene Diisocyanate (TDI) Feedstock
ASTM D 7951 : 2018 Standard Specification for Disproportionation (TDP) Toluene
ASTM D 841 : 2017 : REV A Standard Specification for Nitration Grade Toluene
ASTM D 2700 : 2019 Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel
ASTM D 2827 : 2019 Standard Specification for Styrene Monomer
ASTM D 5871 : 2017 Standard Specification for Benzene for Cyclohexane Feedstock
ASTM D 5136 : 2019 Standard Specification for High Purity <emph type="ital">p</emph>-Xylene
ASTM D 3193 : 2019 Standard Specification for Ethylbenzene
ASTM D 4734 : 2018 : REV A Standard Specification for Refined Benzene-545
ASTM D 5471 : 2018 Standard Specification for O-Xylene 980

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