Your shopping cart is empty!
ASTM International, 02/01/2013
Publisher: ASTM
File Format: PDF
$30.00$60.00
Published:01/02/2013
Pages:6
File Size:1 file , 110 KB
Note:This product is unavailable in Russia, Ukraine, Belarus
1.1 This test method covers the determination of the purity of cyclohexane 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 those found in Table 1, which are impurities that may be found in cyclohexane. The impurities can be analyzed over a range of 3 to 200 mg/kg by this method, but may be applicable to a wider range.
C4
(1) n-butane
(2) isobutene
C5
(3) n-pentane
(4) isopentane
(5) cyclopentane
C6
(6) n-hexane
(7) 2-methylpentane
(8) 3-methylpentane
(9) methylcyclopentane
(10) benzene
(11) cyclohexene
(12) 2,2-dimethylbutane
(13) 2,3-dimethylbutane
C7
(14) 3,3-dimethylpentane
(15) 2,2-dimethylpentane
(16) 2,3-dimethylpentane
(17) 2,4-dimethylpentane
(18) 1,1-dimethylcyclopentane
(19) trans-1,3-dimethylcyclopentane
(20) trans-1,2-dimethylcyclopentane
(21) cis-1,2-dimethylcyclopentane
(22) 2,2-dimethylcyclopentane
(23) 2,4-dimethylcyclopentane
(24) cis-1,3-dimethylcyclopentane
(25) ethylcyclopentane
(26) methylcyclohexane
(27) 3-ethylpentane
(28) 3-methylhexane
(29) 2-methylhexane
(30) n-heptane
(31) toluene
C8
(32) iso-octane
(33) p-xylene
C9
(34) isopropylcylohexane
1.3 The limit of detection is 1 mg/kg.
1.4 In determining the conformance of the test results using this test method to applicable specifications, results shall be rounded off 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. For specific hazard statements, see Section 7.
Standard Specification for Vermiculite Loose Fill Thermal Insulation
$21.00 $42.00
Standard Practice for Internal Temperature Measurements in Low-Conductivity Materials
$23.00 $46.00
Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation
$39.00 $78.00
Standard Test Method for Shear Strength of Joints of Advanced Ceramics at Ambient Temperature
$27.00 $54.00
