ASTM_E_2206_-_11_2015.pdf

Designation:E220611(Reapproved 2015)Standard Test Method forForce Calibration of Thermomechanical Analyzers1This standard is issued under the fixed designation E2206;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 describes the calibration or perfor-mance confirmation of the electronically applied force signalfor thermomechanical analyzers over the range of 0 to 1 N.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 There is no ISO method equivalent to this standard.1.4 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.2.Referenced Documents2.1 ASTM Standards:2E4 Practices for Force Verification of Testing MachinesE473 Terminology Relating to Thermal Analysis and Rhe-ologyE617 Specification for Laboratory Weights and PrecisionMass StandardsE831 Test Method for Linear Thermal Expansion of SolidMaterials by Thermomechanical AnalysisE1142 Terminology Relating to Thermophysical PropertiesE1363 Test Method for Temperature Calibration of Thermo-mechanical AnalyzersE2113 Test Method for Length Change Calibration of Ther-momechanical AnalyzersE2161 Terminology Relating to Performance Validation inThermal Analysis and Rheology3.Terminology3.1 The technical terms used in this standard are defined inTerminologies E473,E1142,and E2161 including calibration,conformance,precision,relativestandarddeviation,repeatability,reproducibility,and thermomechanical analyzer.4.Summary of Test Method4.1 The electronic force signal generated by a thermome-chanical analyzer is compared to that exerted by gravity on aknown mass.The thermomechanical analyzer may be said tobe in conformance if the performance is within establishedlimits,typically 1%.Alternatively,the force signal may becalibrated using a two-point calibration method.5.Significance and Use5.1 Most thermomechanical analysis experiments are car-ried out with some force applied to the test specimen.Thisforce is often created electronically.It may be constant orchanged during the experiment.5.2 This method demonstrates conformance or calibrates theelectronically applied force signal.5.3 This method may be used for research and development,quality control,manufacturing or regulatory applications.5.4 Other thermomechanical analyzer calibration functionsinclude temperature by Test Method E1363 and length changeby Test Method E2113.6.Apparatus6.1 Thermomechanical AnalyzerThe essential instrumen-tation required to provide a minimum thermomechanical analy-sis or thermodilatometric capability for this method includes:6.1.1 Rigid Specimen Holder,inert,low expansivity mate-rial typically 0.6 m(m K)to center the specimen in thefurnace and to fix the specimen to mechanical ground.NOTE1Materials of construction with greater expansivity may beused but shall be reported.6.1.2 Rigid(Expansion or Compression)Probe,inert,lowexpansivity material typically 0.6 m(m K)which con-tacts the specimen with an applied compressive force(see Note1).6.1.3 Sensing Element,linear over a minimum range of2 mm to measure the displacement of the rigid probe to 61 mresulting from changes in length of the specimen.6.1.4 Programmable Force Transducer,to generate a con-stant force(61.0%)of up to 1.0 N that is applied through therigid probe to the specimen.1This test method is under the jurisdiction ofASTM Committee E37 on ThermalMeasurements and is the direct responsibility of Subcommittee E37.10 onFundamental,Statistical and Mechanical Properties.Current edition approved Oct.1,2015.Published October 2015.Originallyapproved in 2002.Last previous edition approved in 2011 as E2206 11.DOI:10.1520/E2206-11R15.2For 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 States1 NOTE2Other force ranges may be used but shall be reported.6.1.5 Furnace,capable of providing uniform controlledheating(cooling)of the specimen to a constant temperature orat a constant rate within the temperature range of 100 to600C.NOTE3Other temperature ranges may be used but shall be reported.6.1.6 Temperature Controller,capable of executing a spe-cific temperature program by operating the furnace betweenselected temperature limits at a rate of change of up to10C/min constant to 0.1C/min or at an isothermal