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ASTM D4424-90(2001)e1

(Test Method)

Standard Test Method for Butylene Analysis by Gas Chromatography

Standard Test Method for Butylene Analysis by Gas Chromatography

SIGNIFICANCE AND USE
This test method could be used to determine butylene stream composition for custody transfer payments. It is also capable of providing data necessary to evaluate processing requirements in an operating plant.
SCOPE
1.1 This test method covers the gas chromatographic analysis of commercial butylenes, butylene concentrates, and butane-butylene mixtures.  
1.2 This test method does not cover high-purity butene-1 or high-purity isobutene streams, or both. However, it is possible that one or more columns listed in Appendix X1 may be capable of the separation necessary for high-purity analyses.  
1.3 This test method is designed to cover the components listed below at about 0.05% or greater. It is not intended for trace hydrocarbon analysis. Components to be determined are: propane, propylene, isobutane, n-butane, butene-1, isobutene, trans -butene-2, cis -butene-2, 1,3-butadiene, isopentane, n-pentane.  
1.4 The values stated in S1units are to be regarded as the standard. The values stated in inch-pound units are for information only.
1.5  This standard does not purport to address all of the safety problems 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 warning statements, see 5.3.1.

General Information

Status
Historical
Publication Date
31-Dec-2000
ICS
71.080.10 - Aliphatic hydrocarbons
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.D0.04 - C4 and C5 Hydrocarbons
Current Stage
Ref Project

Relations

Replaces
ASTM D4424-90(1995) - Standard Test Method for Butylene Analysis by Gas Chromatography
Effective Date
01-Jan-2001
Replaced By
ASTM D4424-09 - Standard Test Method for Butylene Analysis by Gas Chromatography
Effective Date
15-Jul-2009

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ASTM D4424-90(2001)e1 - Standard Test Method for Butylene Analysis by Gas ChromatographyASTM D4424-90(2001)e1 - Standard Test Method for Butylene Analysis by Gas Chromatography
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ASTM D4424-90(2001)e1 - Standard Test Method for Butylene Analysis by Gas Chromatography
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
´1
Designation:D4424–90(Reapproved 2001)
Standard Test Method for
Butylene Analysis by Gas Chromatography
This standard is issued under the fixed designation D4424; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
´ NOTE—Warning notes were placed in the text editorially in January 2001.
1. Scope samplearedetectedbyeitherathermalconductivitydetectoror
by a flame ionization detector. Calibration data are obtained by
1.1 This test method covers the gas chromatographic analy-
using either relative response factors or by using a standard
sis of commercial butylenes, butylene concentrates, and
calibration blend.
butane-butylene mixtures.
1.2 This test method does not cover high-purity butene-1 or
4. Significance and Use
high-purity isobutene streams, or both. However, it is possible
4.1 This test method could be used to determine butylene
that one or more columns listed in Appendix X1 may be
stream composition for custody transfer payments. It is also
capable of the separation necessary for high-purity analyses.
capable of providing data necessary to evaluate processing
1.3 This test method is designed to cover the components
requirements in an operating plant.
listed below at about 0.05 % or greater. It is not intended for
trace hydrocarbon analysis. Components to be determined are:
5. Apparatus
propane, propylene, isobutane, n-butane, butene-1, isobutene,
5.1 Chromatograph—Any chromatographic instrument
trans-butene-2, cis-butene-2, 1,3-butadiene, isopentane,
having either a thermal conductivity or flame ionization
n-pentane.
detector with an overall sensitivity sufficient to detect at least
1.4 The values stated in SI units are to be regarded as the
0.05 % of each of the components listed in the scope.
standard. The values stated in inch-pound units are for infor-
5.2 Detector—Either a thermal conductivity or flame ion-
mation only.
ization detector may be used.
1.5 This standard does not purport to address all of the
5.3 Sample Valve—Either a constant-volume gas sampling
safety concerns associated with its use. It is the responsibility
valveoraliquidsamplingvalvemaybeused.Ifagassampling
of the user of this standard to establish appropriate safety and
valve is used, greater care must be taken to ensure that the
health practices and determine the applicability of regulatory
vaporized butylenes that are injected into the chromatograph
limitations prior to use. For specific warning statements, see
are a true representation of the sample.
5.3.1.
5.3.1 If the liquid sample valve is used, the sample cylinder
must be pressured up to at least 1100 kPa (160 psig) with an
2. Referenced Documents
2 inert gas, such as nitrogen or helium (Warning—Compressed
2.1 ASTM Standards:
gas under high pressure. Gas reduces oxygen available for
E260 Practice for Packed Column Gas Chromatography
breathing.). Also a valve must be installed in the purge line
3. Summary of Test Method downstream of the liquid sample valve to ensure the butylenes
sample in the sampling valve is entirely in the liquid phase
3.1 The sample is separated in a gas chromatograph system
prior to injection into the column (Warning—Extremely
using a packed chromatographic column with either helium or
flammable liquefied gas under pressure. Vapor reduces oxygen
hydrogen as the carrier gas. The separated components of the
available for breathing.).
5.4 Column—Any chromatographic column may be used,
providing the components listed in the scope can be separated
This test method is under the jurisdiction of ASTM Committee D02 on
sufficiently for the accurate determination of component con-
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.D0.04 on C4 Hydrocarbons.
centration. Resolution between peaks must afford a resolution
Current edition approved Jan. 10, 2001. Published November 1990. Originally
such that the depth of the valleys between peaks are no less
published as D4424 – 84. Last previous edition D4424 – 84. DOI: 10.1520/D4424-
than 50 % of the peak height of the lesser component.Alist of
90R01E01.
Annual Book of ASTM Standards, Vol 03.06. satisfactory columns is given in Appendix X1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
´1
D4424–90 (2001)
5.5 Recorder—A recorder with a full-scale response of 2 s 8.2 If a liquid sampling valve is used, pressure the sample
or less and a ma
...

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5.1 This procedure describes a rapid and sensitive method for estimating the stability reserve of an oil. The stability reserve is estimated in terms of a separability number, where a low value of the separability number indicates that there is a stability reserve within the oil. When the separability number is between 0 to 5, the oil can be considered to have a high stability reserve and asphaltenes are not likely to flocculate. If the separability number is between 5 to 10, the stability reserve in the oil will be much lower. However, asphaltenes are, in this case, not likely to flocculate as long as the oil is not exposed to any worse conditions, such as storing, aging, and heating. If the separability number is above 10, the stability reserve of the oil is very low and asphaltenes will easily flocculate, or have already started to flocculate.  
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SCOPE
1.1 This test method covers the determination of traces of carbonyl sulfide (COS) in propylene. It is applicable to COS concentrations from 0.5 mg/kg to 4.0 mg/kg (parts per million by mass). See Note 1.  
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Standard Guide for Analysis of 1,3–Butadiene Product

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4.1 This guide is intended to provide information on the possible composition of 1,3-butadiene products and possible ways to test them. Since there are currently not enough ASTM standards for determining all components of interest, this guide provides information on other potentially available test methods.  
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