1、Designation: D5309 17Standard 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
2、the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 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 de
3、termining conformance 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
4、 SafetyData Sheets, 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, G
5、uides and Recom-mendations 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 CyclicProd
6、uctsD5386 Test Method 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)D8005 Test Method
7、 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 Procedure)2.2 Other Documents:OSHA Regulations, 29 CFR Paragraphs 1910
8、.1000 and1910.120033. Properties3.1 Cyclohexane 999 shall conform to the following re-quirements:Property SpecificationASTMTest MethodPurity, min, weight % 99.90 D7266Benzene, max, mg/kg 50 D7266n-Hexane, max, mg/kg 200 D7266Methylcyclohexane, max, mg/kg 200 D7266Methylcyclopentane, max, mg/kg 150 D
9、7266Sulfur, max, mg/kg 1 D7183Appearance, free of haze, particulatesor suspended matter particlespass E2680Color, max, Platinum/Cobalt scaleA10 D5386 or D8005Distillation range, 1.0 D850including the temperature 80.7C, at101.3 KPa (760 mmHg) pressure,max,CAIf more than one method is listed for a pro
10、perty 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 jurisdiction of ASTM Committee D16 onAromatic, Industrial, Specialty an
11、d Related Chemicals and is the direct responsi-bility of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane andTheir Derivatives.Current edition approved June 1, 2017. Published June 2017. Originallyapproved in 1992. Last previous edition approved in 2016 as D5309 16. DOI:10.1520/D5309-17
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