ASTM_D_1468_-_93_2001.pdf

Designation:D 1468 93(Reapproved 2001)Standard Test Method forVolatile Matter in Tricresyl Phosphate1This standard is issued under the fixed designation D 1468;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.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This test method covers a procedure for determining thevolatile matter in tricresyl phosphate.1.2 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.For specific hazardstatements,see Section 4.1.3 For hazard information and guidance,see the suppliersMaterial Safety Data Sheet.2.Significance and Use2.1 This test method provides a measurement of volatilematter in tricresyl phosphate.The results of this measurementcan be used for specification acceptance and determiningperformance in plasticizer use.3.Apparatus3.1 Oven,thermostatically controlled at 105 6 5C.3.2 Petri Dish,100-mm diameter,or equivalent.4.Hazards4.1 Tricresyl phosphate is hazardous through inhalation orskin absorption.Take care in handling the material.4.2 Ortho-isomer of tricresyl phosphate is considered toxic.Trace amounts may be present in tricresyl phosphate speci-mens.5.Procedure5.1 Place a flat aluminum,glass,or porcelain dish in anoven at 1056 5C for 1 h.Cool in a desiccator and weigh to 10mg.Spread evenly over the bottom of the dish approximately25 g of the sample.Weigh the dish and the specimen to 10 mgand place in an oven at 105 6 5C for 3 h.Cool the dish andspecimen in a desiccator,and reweigh to 10 mg.6.Calculation6.1 Calculate the volatile matter in tricresyl phosphate asfollows:Volatile matter,%5S 2 R!/S#3 100(1)where:S=weight of specimen used,g,andR=weight of specimen after heating,g.7.Precision and Bias7.1 PrecisionResults should not differ from the mean bymore than the following amounts:WithinlaboratoryBetweenlaboratoriesVolatile matter,weight%0.050.17.2 BiasBias has not been determined for this testmethod.8.Keywords8.1 tricresyl phosphate;volatile matterThe American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connectionwith any item mentioned in this standard.Users of this standard are expressly advised that determination of the validity of any suchpatent rights,and the risk of 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 Headquarters.Your comments will receive careful consideration at a meeting of the responsibletechnical committee,which you may attend.If you feel that your comments have not received a fair hearing you should make yourviews known to the ASTM Committee on Standards,at the address shown below.This standard is copyrighted byASTM,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA19428-2959,United States.Individual reprints(single or multiple copies)of this standard may be obtained by contacting ASTM at the above address or at610-832-9585(phone),610-832-9555(fax),or serviceastm.org(e-mail);or through the ASTM website(www.astm.org).1This test method is under the jurisdiction of ASTM Committee D-1 on Paintand Related Coatings,Materials,and Applicationsand is the direct responsibility ofSubcommittee D01.35on Solvents,Plasticizers,and Chemical Intermediates.Current edition approved Oct.15,1993.Published December 1993.Originallypublished as D 1468 57 T.Last previous edition D 1468 84(1988)e11Copyright ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,United States.