ASTM D5871-12

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. Because
it 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 version
of the standard as published by ASTM is to be considered the official document.
Designation: D5871 − 11 D5871 − 12
Standard Specification for
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Benzene for Cyclohexane Feedstock
This standard is issued under the fixed designation D5871; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript 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 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 expressing
the specification limit, in accordance with the rounding-off method of Practice E29.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 Consult current OSHA regulations supplier’s Material Safety Data Sheets for all materials used in this specification.
2. Referenced Documents
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2.1 ASTM Standards:
D848 Test Method for Acid Wash Color of Industrial Aromatic Hydrocarbons
D852 Test Method for Solidification Point of Benzene
D1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
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D1685 Test Method for Traces of Thiophene in Benzene by Spectrophotometry (Withdrawn 2009)
D3437 Practice for Sampling and Handling Liquid Cyclic Products
D4017 Test Method for Water in Paints and Paint Materials by Karl Fischer Method
D4492 Test Method for Analysis of Benzene by Gas Chromatography
D4735 Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography
D5386 Test Method for Color of Liquids Using Tristimulus Colorimetry
D5713 Test Method for Analysis of High Purity Benzene for Cyclohexane Feedstock by Capillary Gas Chromatography
D6875 Test Method for Solidification Point of Industrial Organic Chemicals by Thermistor
D7011 Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography and Sulfur Selective
Detection
D7183 Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by Ultraviolet
Fluorescence
D7375 Test Method for Trace Quantities of Water in Aromatic Hydrocarbons and Their Mixtures by Coulometric Karl Fischer
Titration
D7504 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon
Number
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
2.2 Other Document:
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OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200
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This specification is under the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee
D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.
Current edition approved Jan. 1, 2011Nov. 1, 2012. Published February 2011December 2012. Originally approved in 1996. Last previous edition approved in 20082011
as D5871 – 08.D5871 – 11. DOI: 10.1520/D5871-11.10.1520/D5871-12.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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The last approved version of this historical standard is referenced on www.astm.org.
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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.
*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
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D5871 − 12
3. Properties
3.1 Benzene for Cyclohexane Feedstock shall conform to the following requirements:
A
Property Specification ASTM Test Method
Benzene, min, weight % 99.90 D4492 or D5713 or
D7504
Sulfur, max, mg/kg 1.0 D7183
Thiophene, max, mg/kg 0.6 D1685, D4735 or
D7011
Toluene plus methylcyclohexane max, 150 D5713
mg/kg
Methylcyclopentane, max mg/kg 100 D5713
N-hexane, max, mg/kg 80 D5713
Acid wash color, max pass with 1 D848
B
Appearance .
Color, max, Pt-Co scale 10 D1209 or D5386
Water (if needed) D4017 or D7375
Solidification point, anhydrous basis, 5.45 D852 or D6875
min,°C
________________
A
If more than one meth
...