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ASTM D 7266 : 2013 : EDT 1

ASTM D 7266 : 2013 : EDT 1

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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

Available format(s)

Hardcopy , PDF

Superseded date

08-04-2023

Language(s)

English

Published date

02-01-2013

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 06.04, 2018 Defines the determination of the purity of cyclohexane by gas chromatography.

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.

TABLE 1 Impurities Known or Suggested to be Present in Commercial Cyclohexane

 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


1.3The limit of detection is 1 mg/kg.

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.

Committee
D 16
DocumentType
Test Method
Pages
6
ProductNote
Reconfirmed EDT 1
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

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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