ASTM D4424-1990(2001)e1 Standard Test Method for Butylene Analysis by Gas Chromatography《气相色谱法分析丁烯的标准试验方法》.pdf
《ASTM D4424-1990(2001)e1 Standard Test Method for Butylene Analysis by Gas Chromatography《气相色谱法分析丁烯的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D4424-1990(2001)e1 Standard Test Method for Butylene Analysis by Gas Chromatography《气相色谱法分析丁烯的标准试验方法》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 4424 90 (Reapproved 2001)e1An American National StandardStandard Test Method forButylene Analysis by Gas Chromatography1This standard is issued under the fixed designation D 4424; the number immediately following the designation indicates the year oforiginal adoption or, in the case o
2、f revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.e1NOTEWarning notes were placed in the text editorially in January 2001.1. Scope1.1 This test method cove
3、rs the gas chromatographic analy-sis of commercial butylenes, butylene concentrates, andbutane-butylene mixtures.1.2 This test method does not cover high-purity butene-1 orhigh-purity isobutene streams, or both. However, it is possiblethat one or more columns listed in Appendix X1 may becapable of t
4、he separation necessary for high-purity analyses.1.3 This test method is designed to cover the componentslisted below at about 0.05 % or greater. It is not intended fortrace hydrocarbon analysis. Components to be determined are:propane, propylene, isobutane, n-butane, butene-1, isobutene,trans-buten
5、e-2, cis-butene-2, 1,3-butadiene, isopentane,n-pentane.1.4 The values stated in SI units are to be regarded as thestandard. The values stated in inch-pound units are for infor-mation only.1.5 This standard does not purport to address all of thesafety concerns associated with its use. It is the respo
6、nsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use. For specific warning statements, see5.3.1.2. Referenced Documents2.1 ASTM Standards:E 260 Practice for Packed Column Gas Chromatography23.
7、Summary of Test Method3.1 The sample is separated in a gas chromatograph systemusing a packed chromatographic column with either helium orhydrogen as the carrier gas. The separated components of thesample are detected by either a thermal conductivity detector orby a flame ionization detector. Calibr
8、ation data are obtained byusing either relative response factors or by using a standardcalibration blend.4. Significance and Use4.1 This test method could be used to determine butylenestream composition for custody transfer payments. It is alsocapable of providing data necessary to evaluate processi
9、ngrequirements in an operating plant.5. Apparatus5.1 ChromatographAny chromatographic instrumenthaving either a thermal conductivity or flame ionizationdetector with an overall sensitivity sufficient to detect at least0.05 % of each of the components listed in the scope.5.2 DetectorEither a thermal
10、conductivity or flame ion-ization detector may be used.5.3 Sample ValveEither a constant-volume gas samplingvalve or a liquid sampling valve may be used. If a gas samplingvalve is used, greater care must be taken to ensure that thevaporized butylenes that are injected into the chromatographare a tru
11、e representation of the sample.5.3.1 If the liquid sample valve is used, the sample cylindermust be pressured up to at least 1100 kPa (160 psig) with aninert gas, such as nitrogen or helium (WarningCompressedgas under high pressure. Gas reduces oxygen available forbreathing.). Also a valve must be i
12、nstalled in the purge linedownstream of the liquid sample valve to ensure the butylenessample in the sampling valve is entirely in the liquid phaseprior to injection into the column (WarningExtremelyflammable liquefied gas under pressure. Vapor reduces oxygenavailable for breathing.).5.4 ColumnAny c
13、hromatographic column may be used,providing the components listed in the scope can be separatedsufficiently for the accurate determination of component con-centration. Resolution between peaks must afford a resolutionsuch that the depth of the valleys between peaks are no lessthan 50 % of the peak h
14、eight of the lesser component. A list ofsatisfactory columns is given in Appendix X1.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.D0.04 on C4 Hydrocarbons.Current edition approved Jan. 10, 20
15、01. Published November 1990. Originallypublished as D 4424 84. Last previous edition D 4424 84.2Annual Book of ASTM Standards, Vol 03.06.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.5 RecorderA recorder with a full-scale respons
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD442419902001E1STANDARDTESTMETHODFORBUTYLENEANALYSISBYGASCHROMATOGRAPHY 色谱 分析 丁烯 标准 试验 方法 PDF

链接地址:http://www.mydoc123.com/p-517017.html