1、Designation:D235912Standard Specification forRefined Benzene-5351This standard is issued under the fixed designation D2359;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 th
2、e year 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 benzene known asrefined benzene-535.1.2 The following applies to all specified limits in thisstandard:for purposes of determining confo
3、rmance with thisstandard,an observed value or a calculated value shall berounded 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.No
4、 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:2D848 Test Method for Acid Wash Color of Industrial Aro-matic
5、HydrocarbonsD852 Test Method for Solidification Point of BenzeneD1209 Test Method for Color of Clear Liquids(Platinum-Cobalt Scale)D1685 Test Method for Traces of Thiophene in Benzene bySpectrophotometry(Withdrawn 2009)3D3437 Practice for Sampling and Handling Liquid CyclicProductsD4492 Test Method
6、for Analysis of Benzene by Gas Chro-matographyD4735 Test Method for Determination of Trace Thiophenein Refined Benzene by Gas ChromatographyD5194 Test Method for Trace Chloride in Liquid AromaticHydrocarbonsD5386 Test Method for Color of Liquids Using TristimulusColorimetryD5808 Test Method for Dete
7、rmining Chloride in AromaticHydrocarbons and Related Chemicals by Microcoulom-etryD6069 Test Method for Trace Nitrogen in Aromatic Hydro-carbons by Oxidative Combustion and Reduced PressureChemiluminescence DetectionD6304 Test Method for Determination of Water in Petro-leum Products,Lubricating Oils
8、,and Additives by Cou-lometric Karl Fischer TitrationD6875 Test Method for Solidification Point of IndustrialOrganic Chemicals by ThermistorD7011 Test Method for Determination of Trace Thiophenein Refined Benzene by Gas Chromatography and SulfurSelective DetectionD7183 Test Method for Determination
9、of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-violet FluorescenceD7184 Test Method for Ultra Low Nitrogen in AromaticHydrocarbons by Oxidative Combustion and ReducedPressure Chemiluminescence DetectionD7359 Test Method for Total Fluorine,Chlorine and Sulfurin Aromatic Hydroc
10、arbons and Their Mixtures by Oxida-tive Pyrohydrolytic Combustion followed by Ion Chroma-tography Detection(Combustion Ion Chromatography-CIC)D7360 Test Method for Analysis of Benzene by Gas Chro-matography with External CalibrationD7375 Test Method for Trace Quantities of Water in Aro-matic Hydroca
11、rbons and Their Mixtures by CoulometricKarl Fischer TitrationD7457 Test Method for Determining Chloride in AromaticHydrocarbons and Related Chemicals by Microcoulom-etryD7504 Test Method for Trace Impurities in MonocyclicAromatic Hydrocarbons by Gas Chromatography andEffective Carbon NumberD7536 Tes
12、t Method for Chlorine in Aromatics by Mono-chromatic Wavelength Dispersive X-ray FluorescenceSpectrometry1This specification is under the jurisdiction of ASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility ofSubcommittee D16.01 on Benzene,Toluene,Xylenes
13、,Cyclohexane and TheirDerivatives.Current edition approved Nov.1,2012.Published December 2012.Originallyapproved in 1966.Last previous edition approved in 2010 as D2359 10.DOI:10.1520/D2359-12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at servi
14、ceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM Internati
15、onal,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE1064 Test Method for Water in Organic Liquids by Coulo-metric Karl Fischer Titration2.2 Other Document:OSHA Regulat
16、ions,29 CFR paragraphs 1910.1000 and1910.120043.Properties3.1 Refined benzene-535 shall conform to the followingrequirements:PropertySpecificationASTM Test MethodAPurity,min,weight%99.80D4492 or D7360Toluene,max,weight%0.10D4492 or D7360Thiophene,max,mg/kg1D1685 or D4735 orD7011Nonaromatic hydrocarbons,max,weight%0.15D4492 or D7360Acid wash color,maxpass with 1D848AppearanceB.Color,max,PtCo scale20D1209 or D5386Solidification point,anhydrousbasis,min,C5.35D852 orD6875AIf more than one method is
