1、Designation:D712419Standard Specification forBenzene for Use with Zeolite Based Catalysts1This standard is issued under the fixed designation D7124;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
2、 parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers benzene for use with zeolitebased catalysts.1.2 The following applies to all specified limits in thisspecification:for pur
3、poses of determining conformance 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 a
4、re to be regarded as thestandard.The values given in parentheses are for informationonly.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 internationall
5、y recognized principles on standard-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:2D848 Test Method f
6、or Acid Wash Color of Industrial Aro-matic HydrocarbonsD1492 Test Method for Bromine Index of Aromatic Hydro-carbons by Coulometric TitrationD3437 Practice for Sampling and Handling Liquid CyclicProductsD4735 Test Method for Determination of Trace Thiophenein Refined Benzene by Gas ChromatographyD51
7、94 Test Method for Trace Chloride in Liquid AromaticHydrocarbonsD5386 Test Method for Color of Liquids Using TristimulusColorimetryD5776 Test Method for Bromine Index of Aromatic Hydro-carbons by Electrometric TitrationD5808 Test Method for Determining Chloride in AromaticHydrocarbons and Related Ch
8、emicals by Microcoulom-etryD7011 Test Method for Determination of Trace Thiophenein Refined Benzene by Gas Chromatography and SulfurSelective DetectionD7183 Test Method for Determination of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-violet FluorescenceD7184 Test Method for U
9、ltra Low Nitrogen in AromaticHydrocarbons by Oxidative Combustion and ReducedPressure Chemiluminescence DetectionD7359 Test Method for Total Fluorine,Chlorine and Sulfurin Aromatic Hydrocarbons and Their Mixtures by Oxida-tive Pyrohydrolytic Combustion followed by Ion Chroma-tography Detection(Combu
10、stion Ion Chromatography-CIC)D7360 Test Method for Analysis of Benzene by Gas Chro-matography with External CalibrationD7457 Test Method for Determining Chloride in AromaticHydrocarbons and Related Chemicals by Microcoulom-etryD7504 Test Method for Trace Impurities in MonocyclicAromatic Hydrocarbons
11、 by Gas Chromatography andEffective Carbon NumberD7536 Test Method for Chlorine in Aromatics by Mono-chromatic Wavelength Dispersive X-ray FluorescenceSpectrometryD8005 Test Method for Color of Clear Liquids(Platinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data toDetermine Con
12、formance with SpecificationsE1064 Test Method for Water in Organic Liquids by Coulo-metric Karl Fischer Titration1This 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 Benze
13、ne,Toluene,Xylenes,Cyclohexane andTheir Derivatives.Current edition approved Nov.1,2019.Published November 2019.Originallyapproved in 2005.Last previous edition approved in 2017 as D7124 17.DOI:10.1520/D7124-19.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Custome
14、r Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in ac
15、cordance 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 Technical Barriers to Trade(TBT)Committee.1 E2680 Test Method for Appearanc
16、e of Clear,TransparentLiquids(Visual Inspection Procedure)2.2 Other Document:OSHA Regulations,29 CFR paragraphs 1910.1000 and1910.120033.Properties3.1 Benzene for use with zeolite based catalysts shallconform to the following requirements:PropertySpecificationASTM TestMethodABenzene,min,mass%99.8D7360 or D7504Sulfur,max,mg/kg1.0D7183Thiophene,max,mg/kg0.6D4735 or D7011Toluene,max,mass%0.05D7360 or D7504Nonaromatic hydrocarbons,max,mass%0.15D7360 or D7504Nitrogen,max,mg/kg0.5D7184Chlorides,max,mg
