1、Designation:D547110Standard 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 indicates the year
2、of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers a grade of o-xylene identifiedas ortho-Xylene 980.1.2 The following applies to all specified limits in thisspecification:for purposes of determining conf
3、ormance 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 asstand
4、ard.No other units of measurement are included in thisstandard.1.4 Consult current OSHA regulations and suppliers Mate-rial Safety Data Sheets,and local regulations for all materialsused in this specification.2.Referenced Documents2.1 ASTM Standards:2D850 Test Method for Distillation of Industrial A
5、romaticHydrocarbons and Related MaterialsD1209 Test Method for Color of Clear Liquids(Platinum-Cobalt Scale)D1492 Test Method for Bromine Index of Aromatic Hydro-carbons by Coulometric TitrationD3437 Practice for Sampling and Handling Liquid CyclicProductsD3797 Test Method for Analysis of o-Xylene b
6、y Gas Chro-matographyD5386 Test Method for Color of Liquids Using TristimulusColorimetryD5776 Test Method for Bromine Index of Aromatic Hydro-carbons by Electrometric TitrationD7504 Test Method for Trace Impurities in MonocyclicAromatic Hydrocarbons by Gas Chromatography andEffective Carbon NumberE2
7、9 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 Other Document:3OSHA Regulations,29 CFR Paragraphs 1910.1000 and1910.12003.Properties3.1 O-Xylene 980 shall conform to the following require-ments:PropertySpecificationASTM TestMethodAPurity,min,wt%98
8、.0D3797 or D7504Nonaromatic hydrocarbons,max,wt%0.5D3797 or D7504p-Xylene plus m-Xylene,max,wt%1.3D3797 or D7504C9 and heavier aromatics,max,wt%0.8D3797 or D7504Cumene,wt%B0.5D3797 or D7504Bromine index,max mg/100 g100D1492 or D5776AppearanceC.Color,Pt-Co scale,max10D1209 or D5386Distillation range,
9、including the tempera-ture,144.4C at 101.3 kPA(760 mmHg)pressure,max,C2.0D850AIf more than one method is listed for a property the producer and user shouldagree on the referee method.BCumene is a significant component in o-xylene as it may contribute to deflagra-tions in some processes under certain
10、 conditions.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 D3437.5.Keywords5.1 o-Xylene1This specification is under the jurisdiction of ASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and
11、is the direct responsibility ofSubcommittee D16.01 on Benzene,Toluene,Xylenes,Cyclohexane and TheirDerivatives.Current edition approved Feb.15,2010.Published April 2010.Originallyapproved in 1993.Last previous edition approved in 2004 as D5471 041.DOI:10.1520/D5471-10.2For referenced ASTM standards,
12、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 Office Superintendent of Documents,732 N.Capitol St.,NW,M
13、ail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.*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 States1 SUMMARY OF CHANGESCommittee D16 has identified the location of sele
14、cted changes to this standard since the last issue(D5471 041)that may impact the use of this standard.(Approved February 15,2010.)(1)Added method for composition,Test Method D7504 inTable in 3.1.ASTM International takes no position respecting the validity of any patent rights asserted in connection
15、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 their own responsibility.This standard is subject to revision at any time by the responsible techn
16、ical 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 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
