1、Designation:D530922Standard Specification forCyclohexane 9991This standard is issued under the fixed designation D5309;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 ye
2、ar 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 cyclohexane iden-tified as“cyclohexane 999.”1.2 The following applies to all specified limits in thisstandard:for purposes of determining c
3、onformance 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 Consult current OSHA regulations,suppliers SafetyData Shee
4、ts,and local regulations for all materials used in thisspecification.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-me
5、ndations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D850 Test Method for Distillation of Industrial AromaticHydrocarbons and Related MaterialsD3437 Practice for Sampling and Handling Liquid CyclicProductsD5386 Test Method
6、 for Color of Liquids Using TristimulusColorimetryD7183 Test Method for Determination of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-violet FluorescenceD7266 Test Method for Analysis of Cyclohexane by GasChromatography(External Standard)D7871 Test Method for Analysis of Cyclo
7、hexane by GasChromatography(Effective Carbon Number)D8005 Test Method for Color of Clear Liquids(Platinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE2680 Test Method for Appearance of Clear,TransparentLiquids(Visual Inspection Proc
8、edure)2.2 Other Documents:OSHA Regulations,29 CFR Paragraphs 1910.1000 and1910.120033.Properties3.1 Cyclohexane 999 shall conform to the following re-quirements:PropertySpecificationASTMTest MethodPurity,min,weight%99.90D7266 or D7871Benzene,max,mg/kg50D7266 or D7871n-Hexane,max,mg/kg200D7266 or D78
9、71Methylcyclohexane,max,mg/kg200D7266 or D7871Methylcyclopentane,max,mg/kg150D7266 or D7871Sulfur,max,mg/kg1D7183Appearance,free of haze,particulatesor suspended matter particlespassE2680Color,max,Platinum/Cobalt scaleA10D5386 or D8005Distillation range,1.0D850including the temperature 80.7 C,at101.
10、3 KPa(760 mmHg)pressure,max,CAIf more than one method is listed for a property and there is a dispute,the refereemethod will be agreed upon between the buyer and seller.4.Sampling4.1 Sample the material in accordance with Practice D3437.5.Keywords5.1 cyclohexane 9991This specification is under the j
11、urisdiction 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 Sept.1,2022.Published September 2022.Originallyapproved in 1992.Last p
12、revious edition approved in 2017 as D5309 17.DOI:10.1520/D5309-22.2For 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.
13、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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken
14、,PA 19428-2959.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
15、Technical Barriers to Trade(TBT)Committee.1SUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D5309 17)that may impact the use of this standard.(Approved September 1,2022.)(1)Added Test Method D7871 for composition in Sections 2and 3
16、.ASTM 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 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 wi
