1、Designation: D5871 16D5871 17Standard 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 revision. A number
2、 in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*Scope1.1 This specification covers benzene for cyclohexane feedstock.1.2 The following applies to all specified limits in this standard: for pur
3、poses 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 units
4、are to be regarded as the standard. The values given in parentheses are for information only.1.4 Consult current OSHA regulations suppliers Safety Data Sheets for all materials used in this specification.1.5 This international standard was developed in accordance with internationally recognized prin
5、ciples on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D848 Test Method for Acid Wash Co
6、lor of Industrial Aromatic HydrocarbonsD852 Test Method for Solidification Point of BenzeneD1685 Test Method for Traces of Thiophene in Benzene by Spectrophotometry (Withdrawn 2009)3D3437 Practice for Sampling and Handling Liquid Cyclic ProductsD4017 Test Method for Water in Paints and Paint Materia
7、ls 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 ColorimetryD5713 Test Method for Analysis of High Purity Ben
8、zene 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 Sulfur SelectiveDetectionD7183 Test Method for Det
9、ermination 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 FischerTitration (Withdrawn 2017)3D7504 Test Method for Trace Impurities in Monocyclic A
10、romatic Hydrocarbons by Gas Chromatography and Effective CarbonNumberD8005 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE2680 Test Method for Appearance of Clear, Transparent Liquids (
11、Visual Inspection Procedure)1 This specification is under the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons Aromatic, Industrial, Specialty and Related Chemicals and is the directresponsibility of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.Curre
12、nt edition approved June 1, 2016June 1, 2017. Published June 2016June 2017. Originally approved in 1996. Last previous edition approved in 20122016 asD5871 12.D5871 16. DOI: 10.1520/D5871-16.10.1520/D5871-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer
13、 Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provi
14、de the 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 s
15、tandard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.2 Other Document:OSHA Regulations, 29 CFR paragr
16、aphs 1910.1000 and 1910.1200 44 Available 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.D5871 1723. Properties3.1 Benzene for Cyclohexane Feedstock shall conform to the following requirements:D
17、5871 173Property Specification ASTM Test MethodABenzene, min, weight % 99.90 D4492 or D5713 orD7504Benzene, min, weight % 99.90 D4492 , D5713 orD7504Sulfur, max, mg/kg 1.0 D7183Thiophene, max, mg/kg 0.6 D1685, D4735 orD7011Toluene plus methylcyclohexane max,mg/kg150 D5713Methylcyclopentane, max mg/k
18、g 100 D5713N-hexane, max, mg/kg 80 D5713Acid wash color, max pass with 1 D848Appearance B .Appearance, free of haze,particulates or suspended matterparticlespass E2680Color, max, Pt-Co scale 10 D5386 or D8005Solidification point, anhydrous basis,min,C5.45 D852 or D6875A If more than one method is li
19、sted for a property the producer and user should agree on the referee method.B Clear liquid free of sediment and haze when observed at 18.3 to 25.6C (65 to 78F).D5871 1743.2 See Section 5 for non-mandatory supplementary requirements.4. Sampling4.1 Sample the material in accordance with Practice D343
20、7.5. Supplementary Requirements (Non-mandatory)5.1 The following supplementary requirements shall apply when agreed upon by the supplier and purchaser:Property ASTM Test MethodAWater D4017 or D7375A If more than one method is listed, the producer and user should agree on the referee method.6. Keywor
21、ds6.1 benzene; cyclohexane feedstock; puritySUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue (D587112)that may impact the use of this standard. (Approved June 1, 2016.)(1) Removed D1209 and added D8005 in Section 2.(2) Modified tab
22、le in 3.1 to replace D1209 with D8005.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 r
23、iskof 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 for revision of th
24、is standard or for additional standardsand should be addressed to ASTM International Headquarters. 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
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