ASTM-D7504 2009

$40.63

D7504-09e1 Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number

Published By	Publication Date	Number of Pages
ASTM	2009	8

Guaranteed Safe Checkout

Categories: 71.080.15 - Aromatic hydrocarbons, ASTM

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

1.1 This test method covers the determination of the total nonaromatic hydrocarbons and trace monocyclic aromatic hydrocarbons in toluene, mixed xylenes, and p -xylene by gas chromatography. The purity of toluene, mixed xylenes, or p -xylene can also be calculated. Similar test methods, using the internal standard calibration technique and the external standard calibration technique, are Test Method D2360 and D5917 respectively.

1.2 Total aliphatic hydrocarbons containing 1 through 10 carbon atoms (methane through decanes) can be detected by this test method at concentrations ranging from 0.0001 to 2.5000 weight %. The limit of detection is 0.00003 weight % and the limit of quantitation is 0.0001 weight %.

1.2.1 A small amount of benzene in mixed xylenes or p -xylene may not be distinguished from the non-aromatics and the concentrations are determined as a composite (see 6.1).

1.3 Monocyclic aromatic hydrocarbon impurities containing 6 through 10 carbon atoms (benzene through C ₁₀ aromatics) can be detected by this test method at individual concentrations ranging from 0.0001 to 1.0000 weight %.

1.4 The following applies to all specified limits in this test method: for purposes of determining conformance with this test method, an observed value or a calculated value shall be rounded off to the nearest unit in the last right-hand digit used in expressing the specification limit, 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Summary of Test Method Significance and Use Interferences Apparatus Reagents and Materials TABLE 1
3	Hazards Sampling Preparation of Apparatus Calibration Procedure Calculation or Interpretation of Results Report Precision and Bias TABLE 2 TABLE 3
4	Quality Guidelines Keywords TABLE 4 TABLE 5 TABLE 6 TABLE 7
5	FIG. 1
6	FIG. 2
7	FIG. 3
8	FIG. 4

Additional information

Standard Title	D7504-09e1 Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number
Published Code	ASTM
Publication Date	2009
Pages Count	8
ICS Codes	71.080.15 - Aromatic hydrocarbons

Preview PDF


PDF Format	Searchable	Printable	Preview Now

ASTM-D7504 2009

PDF Catalog

Related products