ASTM-D7057 2009

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D7057-09 Standard Test Method for Analysis of Isopropylbenzene (Cumene) by Gas Chromatography (External Standard)

Published By	Publication Date	Number of Pages
ASTM	2009	5

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Categories: 71.080.15 - Aromatic hydrocarbons, ASTM

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Description

1.1 This test method covers the determination of the purity of isopropylbenzene (cumene) by gas chromatography. Calibration of the gas chromatography system is done by the external standard calibration technique.

1.2 This test method has been found applicable to the measurement of impurities such as nonaromatic hydrocarbons, benzene, toluene, ethylbenzene, phenol, cymenes, t -butylbenzene, n -butylbenzene, n -propylbenzene, alpha -methylstyrene, sec -butylbenzene, and diisopropylbenzenes, which are impurities that can be found in isopropylbenzene. The latter impurities can be analyzed over a range of 1 mg/kg to 500 mg/kg by this method (see Table 1). The limit of detection for these impurities is summarized in Table 1 as well.

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 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 regulatory limitations prior to use. For specific hazard statements, see Section 8.

TABLE 1 Summary of Precision Data (mg/kg)

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method Significance and Use
2	Apparatus Reagents and Materials Hazards TABLE 1 TABLE 2
3	Sampling and Handling Preparation of Apparatus Calibration FIG. 1
4	Procedure Calculations Report Precision and Bias Quality Guidelines Keywords

Additional information

NonAromatics(NA)	0.441+0.242*NA
O- Cymene	0.498+0.012* o- Cymene
N- Butylbenzene(NBB)	0.445+0.030*NBB
Ethylbenzene (EB)	1.249+0.022*EB
Benzene	1.004+0.006*Benzene
P- Cymene	0.485+0.019* p- Cymene
M- Cymene	0.618+0.011* m- Cymene
N- Propylbenzene (NPB)	-0.369+0.015*NPB
Alpha- methylstyrene(AMS)	1.368+0.057*AMS
Sec- Butylbenzene(SBB)	0.635+0.010*SBB
Phenol (PHE)	1.926+.0095*PHE
Toluene	0.644+0.009*Toluene
1,4-diisopropylbenzene(14DIPB)	0.435+0.013*14DIPB
1,3-diisopropylbenzene(13DIPB)	0.727+0.010*13DIPB
Tert- Butylbenzene(TBB)	1.666+0.011*TBB
ICS Codes	71.080.15 - Aromatic hydrocarbons

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ASTM-D7057 2009

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