1、Designation: D5471 16D5471 17Standard Specification forO-Xylene 9801This standard is issued under the fixed designation D5471; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indic
2、ates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*Scope1.1 This specification covers a grade of o-xyleneo-xylene identified as ortho-Xyleneortho-Xylene 980.1.2 The following applies to all specified limits in this s
3、pecification: for purposes of determining conformance with thisspecification, an observed value or a calculated value shall be rounded off to the nearest unit in the last right-hand digit used inexpressing the specification limit, in accordance with the rounding-off method of Practice E29.1.3 The va
4、lues stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4 Consult current OSHA regulations and suppliers Safety Data Sheets, and local regulations for all materials used in thisspecification.1.5 This international standard was developed i
5、n accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1
6、ASTM Standards:2D850 Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related MaterialsD1492 Test Method for Bromine Index of Aromatic Hydrocarbons by Coulometric TitrationD3437 Practice for Sampling and Handling Liquid Cyclic ProductsD3797 Test Method for Analysis of o-Xylene by
7、 Gas Chromatography (Withdrawn 2014)3D5386 Test Method for Color of Liquids Using Tristimulus ColorimetryD5776 Test Method for Bromine Index of Aromatic Hydrocarbons by Electrometric TitrationD7504 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effecti
8、ve CarbonNumberD8005 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE2680 Test Method for Appearance of Clear, Transparent Liquids (Visual Inspection Procedure)2.2 Other Document:4OSHA R
9、egulations, 29 CFR Paragraphs 1910.1000 and 1910.12003. Properties3.1 O-Xylene 980 shall conform to the following requirements:Property Specification ASTM TestMethodAPurity, min, wt % 98.0 D3797 or D7504Nonaromatic hydrocarbons, max, wt % 0.5 D3797 or D7504p-Xylene plus m-Xylene, max, wt % 1.3 D3797
10、 or D75041 This specification is under the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons Aromatic, Industrial, Specialty and Related Chemicals and is the directresponsibility of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.Current edition approved
11、 June 1, 2016June 1, 2017. Published June 2016June 2017. Originally approved in 1993. Last previous edition approved in 20102016 asD5471 10.D5471 16. DOI: 10.1520/D5471-16.10.1520/D5471-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service
12、astm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.4 Available from U.S. Government Printing Office Superintendent of Documents, 732 N. C
13、apitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequat
14、ely depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM Int
15、ernational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Property Specification ASTM TestMethodAC9 and heavier aromatics, max, wt % 0.8 D3797 or D7504Cumene, wt %B 0.5 D3797 or D7504Bromine index, max mg/100 g 100 D1492 or D5776Appearance C .Color, Pt-Co scale,
16、 max 10 D5386 or D8005Distillation range, including the tempera-ture, 144.4C at 101.3 kPA (760 mmHg) pressure, max, C2.0 D850Property Specification ASTM TestMethodAPurity, min, wt % 98.0 D3797 or D7504Nonaromatic hydrocarbons, max, wt % 0.5 D3797 or D7504p-Xylene plus m-Xylene, max, wt % 1.3 D3797 o
17、r D7504C9 and heavier aromatics, max, wt % 0.8 D3797 or D7504Cumene, wt %B 0.5 D3797 or D7504Bromine index, max mg/100 g 100 D1492 or D5776Appearance, free of haze, particulatesor suspended matter particlespass E2680Color, Pt-Co scale, max 10 D5386 or D8005Distillation range, including the tempera-t
18、ure, 144.4C at 101.3 kPA (760 mmHg) pressure, max, C2.0 D850A If more than one method is listed for a property the producer and user should agree on the referee method.B Cumene is a significant component in o-xyleneo-xylene as it may contribute to deflagrations in some processes under certain condit
19、ions.C Clear liquid, free of sediment and haze when observed at 18.3 to 25.6C.D5471 1724. Sampling4.1 The material shall be sampled in accordance with Practice D3437.5. Keywords5.1 o-Xyleneo-XyleneSUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since
20、the last issue (D547110)that may impact the use of this standard. (Approved June 1, 2016.)(1) Removed D1209 and added D8005 in Section 2.(2) Modified table in 3.1 to replace D1209 with D8005.ASTM International takes no position respecting the validity of any patent rights asserted in connection with
21、 any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible techni
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23、 at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbo
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