1、Designation:D587108 Designation: D5871 11Standard Specification forBenzene for Cyclohexane Feedstock1This standard is issued under the fixed designation D5871; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. A number in parentheses 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 feedstock.1.2 The following applies to all specified limits in this standard:
3、for purposes of determining conformance with this standard,an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand digit used in expressingthe specification limit, in accordance with the rounding-off method of Practice E29.1.3 The values stated in SI
4、 units are to be regarded as the standard. The values given in parentheses are for information only.1.4 Consult current OSHA regulations suppliers Material Safety Data Sheets for all materials used in this specification.2. Referenced Documents2.1 ASTM Standards:2D848 Test Method for Acid Wash Color
5、of Industrial Aromatic 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 by SpectrophotometryD3437 Practice for Sampling and Handling Liquid Cyclic ProductsD4017 Tes
6、t Method for Water in Paints and Paint Materials by Karl Fischer MethodD4492 Test Method for Analysis of Benzene by Gas ChromatographyD4735 Test Method for Determination of Trace Thiophene in Refined Benzene by Gas ChromatographyD5386 Test Method for Color of Liquids Using Tristimulus ColorimetryD57
7、13 Test Method for Analysis of High Purity Benzene for Cyclohexane Feedstock by Capillary Gas ChromatographyD6875 Test Method for Solidification Point of Industrial Organic Chemicals by ThermistorD7011 Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography and Sulf
8、ur SelectiveDetectionD7183 Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by UltravioletFluorescenceD7375 Test Method for Trace Quantities of Water in Aromatic Hydrocarbons and Their Mixtures by Coulometric Karl FischerTitrationD7504 Test Method for Trac
9、e Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective CarbonNumberE29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.120031This specification is un
10、der the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of SubcommitteeD16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.Current edition approved Dec.Jan. 1, 2008.2011. Published December 2008.February 2011. Orig
11、inally approved in 1996. Last previous edition approved in 20072008 asD5871 078. DOI: 10.1520/D5871-08.10.1520/D5871-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refe
12、r to the standards Document Summary page on the ASTM website.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.1This document is not an ASTM standard and is intended only to provide the
13、user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard
14、 as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3. Properties3.1Benzene3.1 Benzene for Cyclohexane Feeds
15、tock shall conform to the following requirements:Property Specification ASTM Test MethodABenzene, min, weight % 99.90 D5713 or D4492Benzene, min, weight % 99.90 D4492 or D5713 orD7504Sulfur, max, mg/kg 1.0 D7183Thiophene, max, mg/kg 0.6 D1685, D4735 orD7011Toluene plus methylcyclohexane max,mg/kg150
16、 D5713Methylcyclopentane, max mg/kg 100 D5713N-hexane, max, mg/kg 80 D5713Acid wash color, max pass with 1 D848AppearanceB.Color, max, Pt-Co scale 10 D1209 or D5386Water (if needed) D4017 orD7375Water (if needed) D4017 or D7375Solidification point, anhydrous basis,min,C5.45 D852 or D6875_AIf more th
17、an one method is listed for a property the producer and user should agree on the referee method.BClear liquid free of sediment and haze when observed at 18.3 to 25.6C (65 to 78F).D5871 1124. Sampling4.1 Sample the material in accordance with Practice D3437.5. Keywords5.1 benzene; cyclohexane feedsto
18、ck; puritySUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D5871 - 078) that may impact the use of this standard. (Approved DecemberJanuary 1, 2008.) 2011.)(1)Added Test Method D7375 as an alternate method for water.Committee D16 h
19、as identified the location of selected changes to this standard since the last issue (D5871-06)that may impact the use of this standard. (Approved June 1, 2007.)(1)Changed method entry for sulfur in 3.1) Added method for composition Test Method D7504.ASTM International takes no position respecting t
20、he 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
21、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 for revision of this standard or for additional standardsand should be addressed to ASTM International H
22、eadquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This
23、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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D5871 113
