1、Designation: D 5871 08Standard Specification forBenzene for Cyclohexane Feedstock1This standard is issued under the fixed designation D 5871; 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 pa
2、rentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers benzene for cyclohexane feed-stock.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 The values stated in SI units are to be reg
4、arded as thestandard. The values given in parentheses are for informationonly.1.4 Consult current OSHA regulations suppliers MaterialSafety Data Sheets for all materials used in this specification.2. Referenced Documents2.1 ASTM Standards:2D 848 Test Method for Acid Wash Color of IndustrialAromatic
5、HydrocarbonsD 852 Test Method for Solidification Point of BenzeneD 1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D 1685 Test Method for Traces of Thiophene in Benzene bySpectrophotometryD 3437 Practice for Sampling and Handling Liquid CyclicProductsD 4017 Test Method for Water i
6、n Paints and Paint Materialsby Karl Fischer MethodD 4492 Test Method for Analysis of Benzene by GasChromatographyD 4735 Test Method for Determination of Trace Thiophenein Refined Benzene by Gas ChromatographyD 5386 Test Method for Color of Liquids Using TristimulusColorimetryD 5713 Test Method for A
7、nalysis of High Purity Benzenefor Cyclohexane Feedstock by Capillary Gas Chromatog-raphyD 6875 Test Method for Solidification Point of IndustrialOrganic Chemicals by ThermistorD 7011 Test Method for Determination of Trace Thiophenein Refined Benzene by Gas Chromatography and SulfurSelective Detectio
8、nD 7183 Test Method for Determination of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-violet FluorescenceD 7375 Test Method for Trace Quantities of Water inAromatic Hydrocarbons and Their Mixtures by Coulom-etric Karl Fischer TitrationE29 Practice for Using Significant Digits
9、in Test Data toDetermine Conformance with Specifications2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and1910.120033. Properties3.1 Benzene for Cyclohexane Feedstock shall conform tothe following requirements:Property Specification ASTM Test MethodABenzene, min, weight % 99.90 D 5
10、713 or D 4492Sulfur, max, mg/kg 1.0 D 7183Thiophene, max, mg/kg 0.6 D 1685, D 4735 orD 7011Toluene plus methylcyclohexane max,mg/kg150 D 5713Methylcyclopentane, max mg/kg 100 D 5713N-hexane, max, mg/kg 80 D 5713Acid wash color, max pass with 1 D 848AppearanceB.Color, max, Pt-Co scale 10 D 1209 or D
11、5386Water (if needed) D 4017 orD 7375Solidification point, anhydrous basis,min, C5.45 D 852 or D 6875_AIf more than one method is listed for a property the producer and user shouldagree on the referee method.BClear liquid free of sediment and haze when observed at 18.3 to 25.6C (65 to78F).1This spec
12、ification 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, Cyclohexane and TheirDerivatives.Current edition approved Dec. 1, 2008. Published December 2008. Originallyappr
13、oved in 1996. Last previous edition approved in 2007 as D 5871 07.2For 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 web
14、site.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.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700,
15、 West Conshohocken, PA 19428-2959, United States.4. Sampling4.1 Sample the material in accordance with PracticeD 3437.5. Keywords5.1 benzene; cyclohexane feedstock; puritySUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D 5871 - 07
16、) that may impact the use of this standard. (Approved December 1, 2008.)(1) Added Test Method D 7375 as an alternate method forwater.Committee D16 has identified the location of selected changes to this standard since the last issue(D 5871 - 06) that may impact the use of this standard. (Approved Ju
17、ne 1, 2007.)(1) Changed method entry for sulfur in 3.1.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
18、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 withdrawn. Your comments are invited either
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20、ing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D5871082
