ASTM_D_3504_-_96_2003.pdf

Designation:D 3504 96(Reapproved 2003)e1Standard Specification forMaleic Anhydride1This standard is issued under the fixed designation D 3504;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year 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 Sections 1 and 5.1.Scope1.1 This specification covers maleic anhydride.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 the last right-hand digitused in expressing the specification limit,in accordance withthe rounding-off method of Practice E 29.1.3 Consult current OSHA regulations and suppliers Mate-rial Safety Data Sheets,and local regulations for all materialsused in this specification.2.Referenced Documents2.1 ASTM Standards:D 1493 Test Method for Solidification Point of IndustrialOrganic Chemicals2D 3366 Test Method for Color of Maleic Anhydride andPhthalic Anhydride in the Molten State and After Heating(Platinum-Cobalt Scale)2D 3438 Practice for Sampling and Handling Naphthalene,Maleic Anhydride,and Phthalic Anhydride2E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications32.2Other Document:OSHA Regulations,29 CFR,paragraphs 1910.1000 and1910.120043.Properties3.1 Maleic anhydride shall conform to the following re-quirements:PropertySpecificationASTM TestMethodSolidification point,min,C52.5D 1493Molten color,max25D 3366Molten color after heating,max40D 33664.Sampling4.1 This material shall be sampled in accordance withPractice D 3438.5.Keywords5.1maleic anhydride;platinum-cobalt color;solidificationpointASTM 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 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by the responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your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 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 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).1This specification is under the jurisdiction of ASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility ofSubcommittee D16.02 on Oxygenated Aromatics.Current edition approved Feb.10,2003.Published March 2003.Originallyapproved in 1976.Last previous edition approved in 1996 as D 3504 96.2Annual Book of ASTM Standards,Vol 06.04.3Annual Book of ASTM Standards,Vol 14.02.4Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.