1、Designation: D5871 12D5871 16Standard 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*1.1 This specification covers benzene for cyclohexane feedstock.1.2 The following applies to all specified limits in this standard: for purposes
3、 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 are t
4、o be regarded as the standard. The values given in parentheses are for information only.1.4 Consult current OSHA regulations suppliers Material suppliers Safety Data Sheets for all materials used in thisspecification.2. Referenced Documents2.1 ASTM Standards:2D848 Test Method for Acid Wash Color of
5、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of Clear Liquids (Platinum-Cobalt Scale)D1685 Test Method for Traces of Thiophene in Benzene by Spectrophotometry (Withdrawn 2009)3D3437 Practice for Sampling and Handling Liquid Cyclic Pr
6、oductsD4017 Test 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
7、 ColorimetryD5713 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 Chromato
8、graphy and Sulfur 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
9、Method for Trace Impurities in Monocyclic Aromatic 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 Specifications2.2 Other Document:OS
10、HA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200 41 This specification is under the jurisdiction ofASTM 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
11、 edition approved Nov. 1, 2012June 1, 2016. Published December 2012June 2016. Originally approved in 1996. Last previous edition approved in 20112012 asD5871 11.D5871 12. DOI: 10.1520/D5871-12.10.1520/D5871-16.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Custom
12、er Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.4 Available from U.S. Government Printing Office Superin
13、tendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be t
14、echnically 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 as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of t
15、his standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13. Properties3.1 Benzene for Cyclohexane Feedstock shall conform to the following requirements:Property Specification ASTM Test MethodABenzene, min, weight % 99.90 D4492 or D
16、5713 orD7504Sulfur, max, mg/kg 1.0 D7183Thiophene, max, mg/kg 0.6 D1685, D4735 orD7011Toluene plus methylcyclohexane max,mg/kg150 D5713Methylcyclopentane, max mg/kg 100 D5713N-hexane, max, mg/kg 80 D5713Acid wash color, max pass with 1 D848Appearance B .Color, max, Pt-Co scale 10 D1209 or D5386Color
17、, max, Pt-Co scale 10 D5386 or D8005Solidification point, anhydrous basis,min,C5.45 D852 or D6875A If more than one method is listed 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 1623.
18、2 See Section 5 for non-mandatory supplementary requirements.4. Sampling4.1 Sample the material in accordance with Practice D3437.5. Supplementary Requirements (Non-mandatory)5.1 The following supplementary requirements shall apply when agreed upon by the supplier and purchaser:Property ASTM Test Me
19、thodAWater D4017 or D7375A If more than one method is listed, the producer and user should agree on the referee method.6. Keywords6.1 benzene; cyclohexane feedstock; puritySUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue (D5871 11)
20、 12) that may impact the use of this standard. (Approved NovemberJune 1, 2012.)2016.)(1) Removed D1209 and added D8005 in Section 2.(2) Modified Table 3.1 to eliminate non-mandatory requirements. Added 3.2 and Section 5 to indicate non-mandatory items.tablein 3.1 to replace D1209 with D8005.ASTM Int
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