1、Designation: D5136 17aStandard 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 parentheses indi
2、cates 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 thisspecification: for purposes of determining conformance wi
3、ththis specification, an observed value or a calculated value shallbe rounded off “to the nearest unit” in the last right-hand digitused in expressing the specification limit, in accordance withthe rounding-off method of Practice E29.1.3 The values stated in SI units are to be regarded asstandard. N
4、o other units of measurement are included in thisstandard.1.4 Consult current OSHA regulations, suppliers SafetyData Sheets, and local regulations for all materials used in thisspecification.1.5 This international standard was developed in accor-dance with internationally recognized principles on st
5、andard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D850 Test Method for Distillation of Indust
6、rial AromaticHydrocarbons and Related MaterialsD1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D3437 Practice for Sampling and Handling Liquid CyclicProductsD5386 Test Method for Color of Liquids Using TristimulusColorimetryD5917 Test Method for Trace Impurities in MonocyclicArom
7、atic Hydrocarbons by Gas Chromatography andExternal CalibrationD7183 Test Method for Determination of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-violet FluorescenceD7504 Test Method for Trace Impurities in MonocyclicAromatic Hydrocarbons by Gas Chromatography andEffective Ca
8、rbon NumberE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE2680 Test Method for Appearance of Clear, TransparentLiquids (Visual Inspection Procedure)2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and1910.120033. Properties3.1 High
9、purity p-Xylene shall conform to the followingrequirements:Property SpecificationASTMTest MethodAPurity,Bmin, weight % 99.7 D5917 or D7504m-Xylene, max, weight % 0.20 D5917 or D7504o-Xylene, max, weight % 0.10 D5917 or D7504Sulfur, max, mg/kg 1.0 D7183Toluene, max, weight % 0.10 D5917 or D7504Ethylb
10、enzene, 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 D5386Distillation range, including the temperature138.3C at 101.3 kPa (760 mm Hg)pressu
11、re, max, C1.0 D850AIf more than one method is listed, the producer and user should agree on thereferee method.BPurity, molar %, minimum, will be specified when the freeze point procedureunder development is completed.4. Sampling4.1 The material shall be sampled in accordance withPractice D3437.1This
12、 specification is under the jurisdiction of ASTM Committee D16 onAromatic, Industrial, Specialty and Related Chemicals and is the direct responsi-bility of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane andTheir Derivatives.Current edition approved July 1, 2017. Published September 20
13、17. Originallyapproved in 1990. Last previous edition approved in 2017 as D5136 17. DOI:10.1520/D5136-17a.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standa
14、rds Document Summary page onthe ASTM website.3Available 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1942
15、8-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Techni
16、cal Barriers to Trade (TBT) Committee.15. 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 of any such
17、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 are invited
18、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 received a fa
19、ir 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) of this st
20、andard 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:/ 17a2
