1、Designation: D 5606 01 (Reapproved 2006)e1Standard Specification forToluene for Toluene Diisocyanate (TDI) Feedstock1This standard is issued under the fixed designation D 5606; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the ye
2、ar of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.e1NOTEEditorial changes were made to Footnote A of table in 3.1 and a Summary of Changes was added in January 2006.1. Scope
3、*1.1 This specification covers toluene for toluene diisocyan-ate (TDI) feedstock.1.2 The following applies to all specified limits in thisspecification: for purposes of determining conformance withthis specification, an observed value or a calculated value shallbe rounded off to the nearest unit in
4、the last right-hand digitused in expressing the specification limit, in accordance withthe rounding-off method of Practice E29.1.3 Consult OSHA regulations and suppliers materialsafety data sheets for all materials used in this specification.1.4 The values stated in SI units are to be regarded as th
5、estandard. The values given in parentheses are for informationonly.2. Referenced Documents2.1 ASTM Standards:2D 848 Test Method for Acid Wash Color of IndustrialAromatic HydrocarbonsD 1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D 2360 Test Method for Trace Impurities in Monocy
6、clicAromatic Hydrocarbons by Gas ChromatographyD 3437 Practice for Sampling and Handling Liquid CyclicProductsD 5386 Test Method for Color of Liquids Using TristimulusColorimetryD 6526 Test Method for Analysis of Toluene by CapillaryColumn Gas ChromatographyE29 Practice for Using Significant Digits
7、in Test Data toDetermine Conformance with Specifications2.2 Other Document:OSHA Regulations, 29 CFR, paragraphs 1910.1000 and1910.120033. Properties3.1 Toluene for TDI feedstock shall conform to the follow-ing requirements:Property Specification ASTM Test MethodPurity, min, wt % 99.9AD 2360 or D 652
8、6Acid wash color, max pass with 2 D 848Benzene, max, mg/kg 300AD 2360 or D 6526Nonaromatics, max, wt % 0.1AD 2360 or D 6526Ethylbenzene, max, mg/kg 300AD 2360 or D 6526Xylenes, max, mg/kg 500AD 2360 or D 6526AppearanceB.Color, max, PtCo scale 10 D 1209 or D 5386AIf more than one method is listed, th
9、e producer and user should agree on thereferee method.BClear liquid free of sediment and haze when observed at 18.3 to 25.6C (65 to78F).4. Sampling4.1 Sample the material in accordance with PracticeD 3437.5. Keywords5.1 impurities in toluene; toluene; toluene diisocyanatefeedstock1This specification
10、 is under the jurisdiction of ASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility ofSubcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and TheirDerivatives.Current edition approved Jan. 1, 2006. Published January 2006. Originallyapproved in 19
11、94. Last previous edition approved in 2001 as D 5606 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Avai
12、lable from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.1*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, U
13、nited States.SUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D 5606 01) that may impact the use of this standard.(1) Changed the note on table in 3.1 “ATest Method D 2360 isthe referee test method in case of dispute” to “AIf more
14、thanone method is listed, the producer and user should agree on thereferee method.”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
15、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 must be reviewed every five years andif not revised, either reapproved or withdrawn. Your
16、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 theresponsible technical committee, which you may attend. If you feel that your comments h
17、ave 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 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).D 5606 01 (2006)e12
