ASTM D 7266 : 2013
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Analysis of Cyclohexane by Gas Chromatography (External Standard)
Hardcopy , PDF
11-11-2014
English
01-02-2013
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 06.04, 2018 Defines the determination of the purity of cyclohexane by gas chromatography.
| Committee |
D 16
|
| DocumentType |
Test Method
|
| Pages |
6
|
| ProductNote |
Reconfirmed 2013
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1This 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.
1.2This 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 |
1.4In 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.
1.5The 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. For specific hazard statements, see Section 7.
| ASTM D 5309 : 2017 | Standard Specification for Cyclohexane 999 |
| CFR 29(PT1910.1000 TO END) : 0 | LABOR - OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR |
| ASTM D 3437 : 2015 : REDLINE | Standard Practice for Sampling and Handling Liquid Cyclic Products |
| ASTM D 4790 : 2014 : REDLINE | Standard Terminology of Aromatic Hydrocarbons and Related Chemicals |
| ASTM D 4307 : 2017 : REDLINE | Standard Practice for Preparation of Liquid Blends for Use as Analytical Standards |
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