ASTM_D_5349_-_19.pdf

Designation:D534919Standard Test Method forDetermination of the Moisture and Volatile Content ofSulfonated,Sulfated Oils and Fatliquors by Oven Method1This standard is issued under the fixed designation D5349;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()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the determination of moistureand other volatile material under conditions of the test.It isapplicable to sulfonated,sulfated oils,fats,oils,fatliquors,andsoftening compounds.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D500 Test Methods of Chemical Analysis of Sulfonated andSulfated OilsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE177 Practice for Use of the Terms Precision and Bias inASTM Test Methods3.Significance and Use3.1 This test method is intended to determine the moistureand volatile content of sulfonated,sulfated oil,fats,oils,fatliquors,and softening compounds.4.Apparatus4.1 Oven,mechanical-convection draft capable of setting at100 105 C with a thermoregulatory system,4.2 Glass Beakers,100 to 150 mL,4.3 Desiccator,containing an efficient desiccant,4.4 Analytical Scale,capable of reading at minimum 3decimal places.5.Procedure5.1 Weigh a beaker that has been previously dried andcooled in a desiccator.5.2 Accurately weigh 0.5 g of a well-mixed sample into thebeaker.Place the beaker in the oven,with the temperature setto 105 100 C.5.3 After exactly 1 h,remove the beaker from the oven.Cool to room temperature in a desiccator and weigh.6.Calculation and Report6.1 Report the moisture and volatile matter in percent,byweight,employing the calculation:%Volatile matter moisture!5S 1 B!2 D S#3100(1)where:S=linitial sample weight,B=weight of empty beaker,andD=weight of dried sample plus beaker.6.2 Reference this test method in the test report.7.Precision and Bias7.1 The precision of this test method is based on aninter-laboratory study ofASTM D5349 conducted in 2019.Sixlaboratories tested five leather oils.Every“test result”repre-sents an individual determination,and all participants reported1This test method is under the jurisdiction of ASTM Committee D31 on Leatherand is the direct responsibility of Subcommittee D31.08 on Fats and OilsThis testmethod was developed in cooperation with the American Leather Chemists Assn.(Method H 411957).Current edition approved Nov.1,2019.Published December 2019.Originallyapproved in 1993.Last previous edition approved in 2012 as D5349 95(2012).DOI:10.1520/D5349-19.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.three replicate test results per material.Practice E691 wasfollowed for the design of the study and analysis of the data;the details are given in an ASTM Research Report.37.1.1 Repeatability limit(r)The difference between repeti-tive results obtained by the same operator in a given laboratoryapplying the same test method with the same apparatus underconstant operating conditions on identical test material withinshort intervals of time would in the long run,in the normal andcorrect operation of the test method,exceed the followingvalues only in one case in 20.7.1.1.1 Repeatability can be interpreted as maximum differ-ence between two results,obtained under repeatability condi-tions that are accepted as plausible due to random causes undernormal and correct operation of the test method.7.1.1.2 Repeatability limits are listed in Table 1.7.1.2 Reproducibility limit(R)The diff