ASTM D5871-2012 red 6875 Standard Specification for Benzene for Cyclohexane Feedstock《环已烷原料用苯的标准规格》.pdf

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1、Designation: D5871 11 D5871 12Standard 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 numbe

2、r 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 purpose

3、s 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

4、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 of Industri

5、al 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of Clear Liquids (Platinum-Cobalt Scale)D1685 Test Method for Traces of Thiophene in Benzene by Spectrophotometry (Withdrawn 2009)3D3437 Practice for Sampling and Handling Liquid Cyclic ProductsD4

6、017 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 Colorim

7、etryD5713 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 a

8、nd 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 Method f

9、or Trace 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 1910.1200 41 This specificat

10、ion is under 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 Jan. 1, 2011Nov. 1, 2012. Published February 2011December

11、 2012. Originally approved in 1996. Last previous edition approved in 20082011as D5871 08.D5871 11. DOI: 10.1520/D5871-11.10.1520/D5871-12.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolu

12、me 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.4 Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC

13、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 technically possible to adequately depict all changes accurately, ASTM recomme

14、nds 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 this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700,

15、 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 D5713 orD7504Sulfur, max, mg/kg 1.0 D7183Thiophene, max, mg/kg 0.6 D1685, D473

16、5 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 D5386Water (if needed) D4017 or D7375Solidification point, anhydrous basis,min,C5.45 D8

17、52 or D6875_A 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 1223.2 See Section 5 for non-mandatory supplementary requirements.4. Sampling4.1 Sample th

18、e 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 MethodAWater D4017 or D7375A If more than one method is listed, the producer and user s

19、hould 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 - 08D5871) 11) that may impact the use of this standard. (Approved JanuaryNovember 1, 201

20、1.)2012.)(1) Added method for composition Test MethodModified Table 3.1 to eliminate non-mandatory requirements. Added 3.2 andSection 5 to D7504.indicate non-mandatory items.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mention

21、edin 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 is subject to revision at any time by the responsible technical committee and

22、 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 Headquarters. Your comments will receive careful consideration at a meeting of

23、 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 standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box

24、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 123