1、Designation: D 5136 09Standard Specification forHigh Purity p-Xylene1This standard is issued under the fixed designation D 5136; 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 ind
2、icates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers high purity p-Xylene.1.2 The following applies to all specified limits in thisspecification: for purposes of determining conformance
3、withthis 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.
4、 No other units of measurement are included in thisstandard.1.4 Consult current OSHA regulations, suppliers MaterialSafety Data Sheets, and local regulations for all materials usedin this specification.2. Referenced Documents2.1 ASTM Standards:2D 850 Test Method for Distillation of Industrial Aromat
5、icHydrocarbons and Related MaterialsD 1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D 3437 Practice for Sampling and Handling Liquid CyclicProductsD 5386 Test Method for Color of Liquids Using TristimulusColorimetryD 5917 Test Method for Trace Impurities in MonocyclicAromatic Hy
6、drocarbons by Gas Chromatography andExternal CalibrationD 7183 Test Method for Determination of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-violet FluorescenceD 7504 Test Method for Trace Impurities in MonocyclicAromatic Hydrocarbons by Gas Chromatography andEffective Carbon
7、NumberE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and1910.120033. Properties3.1 High purity p-Xylene shall conform to the followingrequirements:ASTMProperty Specification Test Metho
8、dAPurity,Bmin, weight % 99.7 D 5917 or D 7504m-Xylene, max, weight % 0.20 D 5917 or D 7504o-Xylene, max, weight % 0.10 D 5917 or D 7504Sulfur, max, mg/kg 1.0 D 7183Toluene, max, weight % 0.10 D 5917 or D 7504Ethylbenzene, max, weight % 0.20 D 5917 or D 7504Nonaromatic hydrocarbons, max, weight % 0.2
9、0 D 5917 or D 7504AppearanceC.Color, max, Pt/Co scale 10 D 1209 or D 5386Distillation range, including the temperature138.3C at 101.3 kPa (760 mm Hg)pressure, max, C1.0 D 850AIf more than one method is listed, the producer and user should agree on thereferee method.BPurity, molar %, minimum, will be
10、 specified when the freeze point procedureunder development is completed.CClear liquid free of sediment and haze when observed at 18.3 to 25.6C.4. Sampling4.1 The material shall be sampled in accordance withPractice D 3437.5. Keywords5.1 p-Xylene1This specification is under the jurisdiction of ASTM
11、Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility ofSubcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and TheirDerivativesCurrent edition approved June 1, 2009. Published July 2009. Originally approvedin 1990. Last previous edition approved in 2
12、007 as D 5136 07.2For 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 standards Document Summary page onthe ASTM website.3Available from U.S. Government Printing Off
13、ice Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
14、SUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D 5136 - 07) that may impact the use of this standard. (Approved June 1, 2009.)(1) Added test method for composition, D 7504. Deleted testmethod for composition D 3798 as it is no lo
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16、t 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 either for revision of this standard or f
17、or 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 fair hearing you shouldmake your views know
18、n 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 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).D5136092
