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ASTM International - ASTM D7057-09

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

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Organization: ASTM International
Publication Date: 1 June 2009
Status: inactive
Page Count: 5
ICS Code (Aromatic hydrocarbons): 71.080.15
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... View More

scope:

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)

CompoundRepeatabilityReproducibilityRange
Studied
Benzene1.004+0.006*Benzene0.924+0.158*Benzene1.0-295
Toluene0.644+0.009*Toluene1.505+0.069*Toluene0.2-260
Ethylbenzene (EB)1.249+0.022*EB2.534+0.230*EB5-370
n-Propylbenzene (NPB)-0.369+0.015*NPB-6.793+0.214*NPB180-465
Phenol (PHE)1.926+.0095*PHE3.718+0.207*PHE1-225
alpha-methylstyrene(AMS)1.368+0.057*AMS21.181+0.976*AMS6-305
tert-Butylbenzene(TBB)1.666+0.011*TBB4.126+0.086*TBB2-250
sec-Butylbenzene(SBB)0.635+0.010*SBB0.891+0.090*SBB2-245
m-Cymene0.618+0.011*m-Cymene1.811+0.181*m-Cymene5-240
o-Cymene0.498+0.012*o-Cymene1.951+0.156*o-Cymene1-160
p-Cymene0.485+0.019*p-Cymene1.618+0.097*p-Cymene2-270
n-Butylbenzene(NBB)0.445+0.030*NBB2.600+0.045*NBB0.3-265
1,3-diisopropylbenzene(13DIPB)0.727+0.010*13DIPB1.570+0.720*13DIPB1-210
1,4-diisopropylbenzene(14DIPB)0.435+0.013*14DIPB1.112+0.040*14DIPB1-285
NonAromatics(NA)0.441+0.242*NA1.663+0.306*NA5-95

Document History

January 1, 2018
Standard Test Method for Analysis of Isopropylbenzene (Cumene) by Gas Chromatography (External Standard)
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...
June 1, 2013
Standard Test Method for Analysis of Isopropylbenzene (Cumene) by Gas Chromatography (External Standard)
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...
ASTM D7057-09
June 1, 2009
Standard Test Method for Analysis of Isopropylbenzene (Cumene) by Gas Chromatography (External Standard)
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...
June 1, 2004
Standard Test Method for Analysis of Isopropylbenzene (Cumene) by Gas Chromatography (External Standard)
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...
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