1、Designation: D5606 09 (Reapproved 2013)D5606 16Standard Specification forToluene for Toluene Diisocyanate (TDI) Feedstock1This standard is issued under the fixed designation D5606; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, th
2、e year of last revision. 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 toluene for toluene diisocyanate (TDI) feedstock.1.2 The following applies to all
3、 specified limits in this specification: for purposes of determining conformance with thisspecification, an observed value or a calculated value shall be rounded off to the nearest unit in the last right-hand digit used inexpressing the specification limit, in accordance with the rounding-off method
4、 of Practice E29.1.3 Consult OSHA regulations and suppliers material safety data sheets suppliers Safety Data Sheets for all materials used inthis specification.1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.2. Referenced Do
5、cuments2.1 ASTM Standards:2D848 Test Method for Acid Wash Color of Industrial Aromatic HydrocarbonsD1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D2360 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas ChromatographyD3437 Practice for Sampling and Handl
6、ing Liquid Cyclic ProductsD5386 Test Method for Color of Liquids Using Tristimulus ColorimetryD6526 Test Method for Analysis of Toluene by Capillary Column Gas ChromatographyD7504 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective CarbonNumberD80
7、05 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:OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200 31 This specification is under the jurisdiction ofASTM Co
8、mmittee 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 July 1, 2013June 1, 2016. Published July 2013June 2016. Originally approved in 1994. Last previou
9、s edition approved in 20092013 asD5606 09.D5606 09 (2013). DOI: 10.1520/D5606-09R13.10.1520/D5606-16.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardssta
10、ndards Document Summary page on the ASTM website.3 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.This document is not an ASTM standard and is intended only to provide the user of an A
11、STM 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 as publishe
12、d 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 States13. Properties3.1 Toluene for TDI feedstock shall conform to the follo
13、wing requirements:Property Specification ASTM Test MethodPurity, min, wt % 99.9A D2360 or D6526 orD7504Acid wash color, max pass with 2 D848Benzene, max, mg/kg 300A D2360 or D6526 orD7504Nonaromatics, max, wt % 0.1A D2360 or D6526 orD7504Ethylbenzene, max, mg/kg 300A D2360 or D6526 orD7504Xylenes, m
14、ax, mg/kg 500A D2360 or D6526 orD7504Appearance B .Color, max, PtCo scale 10 D1209 or D5386Color, max, PtCo scale 10 D5386 or D8005A If more than one method is listed, 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
15、 to 78F).4. Sampling4.1 Sample the material in accordance with Practice D3437.5. Keywords5.1 impurities in toluene; toluene; toluene diisocyanate feedstockSUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D5606D560609(2013)-01 (2006
16、)1) that may impact the use of this standard. (Approved DecemberJune 1,2009.)2016.)(1) Added method for composition, Test Method Removed D1209 and added D8005 D7504in Table in Section 2.3.1.(2) Modified table in 3.1 to replace D1209 with D8005.ASTM International takes no position respecting the vali
17、dity 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 is subj
18、ect 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 Headquart
19、ers. 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 standard
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