1、Designation: D5606 16D5606 17Standard 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, the year of last rev
2、ision. A number 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 toluene for toluene diisocyanate (TDI) feedstock.1.2 The following applies to all specified li
3、mits 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 of Practice
4、E29.1.3 Consult OSHA regulations and suppliers Safety Data Sheets for all materials used in this specification.1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.1.5 This international standard was developed in accordance with i
5、nternationally recognized principles 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:2D84
6、8 Test Method for Acid Wash Color of Industrial Aromatic HydrocarbonsD2360 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography (Withdrawn 2016)3D3437 Practice for Sampling and Handling Liquid Cyclic ProductsD5386 Test Method for Color of Liquids Using Tristimul
7、us 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 CarbonNumberD8005 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)E29 Practice fo
8、r Using Significant Digits in Test Data to Determine Conformance with SpecificationsE2680 Test Method for Appearance of Clear, Transparent Liquids (Visual Inspection Procedure)2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200 41 This specification is under the jurisdicti
9、on 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.Current edition approved June 1, 2016June 1, 2017. Published June 2016June 20
10、17. Originally approved in 1994. Last previous edition approved in 20132016 asD5606 09 (2013).D5606 16. DOI: 10.1520/D5606-16.10.1520/D5606-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvol
11、ume 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
12、 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 recomm
13、ends 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
14、, West Conshohocken, PA 19428-2959. United States13. Properties3.1 Toluene for TDI feedstock shall conform to the following 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 o
15、rD7504Nonaromatics, max, wt % 0.1A D2360 or D6526 orD7504Ethylbenzene, max, mg/kg 300A D2360 or D6526 orD7504Xylenes, max, mg/kg 500A D2360 or D6526 orD7504Appearance B .Appearance, free of haze,particulates or suspended matterparticlespass E2680Color, max, PtCo scale 10 D5386 or D8005A If more than
16、 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 to 78F).4. Sampling4.1 Sample the material in accordance with Practice D3437.5. Keywords5.1 impurities in toluene; toluene; toluene diisocyanate
17、 feedstockSUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D560609(2013) that may impact the use of this standard. (Approved June 1, 2016.)(1) Removed D1209 and added D8005 in Section 2.(2) Modified table in 3.1 to replace D1209 wi
18、th 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 riskof infringement of such ri
19、ghts, 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 this standard or for additional
20、 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 your views known to the ASTM
21、 Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box 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 Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 172
