ASTM D5471-2018 Standard Specification for O-Xylene 980《邻二甲苯980标准规范》.pdf

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1、Designation: D5471 17D5471 18Standard 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. Scope1.1 This specification covers a grade of o-xylene identified as ortho-Xylene 980.1.2 The following applies to all specified limits in this specification: for purposes

3、 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 values stated in SI units ar

4、e 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 in accordance with internat

5、ionally 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 ASTM Standards:2D850 Test

6、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 Gas Chromatography (Withd

7、rawn 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 Effective CarbonNumberD8005 Test

8、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:3OSHA Regulations, 29 CFR Paragra

9、phs 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 D7504Purity, min, wt % 98.0 D7504Nonaromatic hydrocarbons, max, wt % 0.5 D3797 or D7504Nonaromatic hydrocarbons, max, wt % 0.5 D

10、75041 This specification is under the jurisdiction of ASTM Committee D16 on Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsibility ofSubcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.Current edition approved June 1, 2017March 1, 2018.

11、 Published June 2017April 2018. Originally approved in 1993. Last previous edition approved in 20162017 asD5471 16.D5471 17. DOI: 10.1520/D5471-17.10.1520/D5471-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book

12、 of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.This document is not an ASTM sta

13、ndard 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 adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cas

14、es 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 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Property Specif

15、ication ASTM TestMethodAp-Xylene plus m-Xylene, max, wt % 1.3 D3797 or D7504p-Xylene plus m-Xylene, max, wt % 1.3 D7504C9 and heavier aromatics, max, wt % 0.8 D3797 or D7504C9 and heavier aromatics, max, wt % 0.8 D7504Cumene, wt %B 0.5 D3797 or D7504Cumene, wt %B 0.5 D7504Bromine index, max mg/100 g

16、 100 D1492 or D5776Appearance, free of haze, particulatesor suspended matter particlespass E2680Color, Pt-Co scale, max 10 D5386 or D8005Distillation range, including the tempera-ture, 144.4C at 101.3 kPA (760 mmHg) pressure, max, C2.0 D850A If more than one method is listed for a property the produ

17、cer and user should agree on the referee method.B Cumene is a significant component in o-xylene as it may contribute to deflagrations in some processes under certain conditions.D5471 1824. Sampling4.1 The material shall be sampled in accordance with Practice D3437.5. Keywords5.1 o-XyleneASTM Interna

18、tional takes no position respecting the validity of any patent rights asserted in connection with 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 th

19、eir own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should

20、be addressed to ASTM International Headquarters. Your comments will receive careful consideration 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 Standar

21、ds, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832

22、-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ The last approved version of this historical standard is referenced on www.astm.org.D5471 183