1、Designation: D5136 17aD5136 19Standard Specification forHigh Purity p-Xylene1This standard is issued under the fixed designation D5136; 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 parenthe
2、ses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers high purity p-Xylene.1.2 The following applies to all specified limits in this specification: for purposes of determining confo
3、rmance with thisspecification, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand digit usedin expressing the specification limit, in accordance with the rounding-off method of Practice E29.1.3 The values stated in SI units are to be regarded as
4、 standard. No other units of measurement are included in this standard.1.4 Consult current OSHA regulations, suppliers Safety Data Sheets, and local regulations for all materials used in thisspecification.1.5 This international standard was developed in accordance with internationally recognized pri
5、nciples 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 Method for Distillatio
6、n of Industrial Aromatic Hydrocarbons and Related MaterialsD1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D3437 Practice for Sampling and Handling Liquid Cyclic ProductsD5386 Test Method for Color of Liquids Using Tristimulus ColorimetryD5917 Test Method for Trace Impurities in
7、Monocyclic Aromatic Hydrocarbons by Gas Chromatography and ExternalCalibrationD7183 Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by UltravioletFluorescenceD7504 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography
8、and Effective 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 Docum
9、ent:OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200 33. Properties3.1 High purity p-Xylene shall conform to the following requirements:Property Specification ASTMTest MethodAPurity,B min, weight % 99.7 D5917 or D7504m-Xylene, max, weight % 0.20 D5917 or D75041 This specification is under
10、 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 July 1, 2017Jan. 1, 2019. Published September 2017January 2
11、019. Originally approved in 1990. Last previous edition approved in 2017 asD5136 17.D5136 17a. DOI: 10.1520/D5136-17a.10.1520/D5136-19.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume info
12、rmation, 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 standard and is intended only to
13、 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 cases only the current versionof
14、 the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1o-Xylene, max, weight % 0.10 D5917 or D7504Sulfur, max, mg/kg 1.0 D7183Toluene, max, weight % 0.10 D5917 or D
15、7504Ethylbenzene, max, weight % 0.20 D5917 or D7504Nonaromatic hydrocarbons, max, weight % 0.20 D5917 or D7504Appearance, free of haze, particulatesor suspended matter particlespass E2680Color, max, Pt/Co scale 10 D1209 or D5386Color, max, Pt/Co scale 10 D5386 or D8005Distillation range, including t
16、he temperature138.3C at 101.3 kPa (760 mm Hg)pressure, max, C1.0 D850A If more than one method is listed, the producer and user should agree on the referee method.B Purity, molar %, minimum, will be specified when the freeze point procedure under development is completed.4. Sampling4.1 The material
17、shall be sampled in accordance with Practice D3437.5. Keywords5.1 p-XyleneASTM International 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
18、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 technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments a
19、re invited either for revision of this standard or for additional standardsand should 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 re
20、ceived 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 Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies)
21、 of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (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:/ 192
