ASTM_E_1866_-_97_2013.pdf

Designation:E186697(Reapproved 2013)Standard Guide forEstablishing Spectrophotometer Performance Tests1This standard is issued under the fixed designation E1866;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 guide covers basic procedures that can be used todevelop spectrophotometer performance tests.The guide isintended to be applicable to spectrophotometers operating inthe ultraviolet,visible,near-infrared and mid-infrared regions.1.2 This guide is not intended as a replacement for specificpractices such as Practices E275,E925,E932,E958,E1421,orE1683 that exist for measuring performance of specific types ofspectrophotometers.Instead,this guide is intended to provideguidelines in how similar practices should be developed whenspecific practices do not exist for a particular spectrophotom-eter type,or when specific practices are not applicable due tosampling or safety concerns.This guide can be used to developperformance tests for on-line process spectrophotometers.1.3 This guide describes univariate level zero and level onetests,and multivariate level A and level B tests which can beimplemented to measure spectrophotometer performance.These tests are designed to be used as rapid,routine checks ofspectrophotometer performance.They are designed to uncovermalfunctions or other changes in instrument operation,but donot specifically diagnose or quantitatively assess the malfunc-tion or change.The tests are not intended for the comparison ofspectrophotometers of different manufacture.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:2E131 Terminology Relating to Molecular SpectroscopyE275 Practice for Describing and Measuring Performance ofUltraviolet and Visible SpectrophotometersE925 Practice for Monitoring the Calibration of Ultraviolet-Visible Spectrophotometers whose Spectral Bandwidthdoes not Exceed 2 nmE932 Practice for Describing and Measuring Performance ofDispersive Infrared SpectrometersE958 Practice for Measuring Practical Spectral Bandwidthof Ultraviolet-Visible SpectrophotometersE1421 Practice for Describing and Measuring Performanceof Fourier Transform Mid-Infrared(FT-MIR)Spectrom-eters:Level Zero and Level One TestsE1655 Practices for Infrared Multivariate QuantitativeAnalysisE1683 Practice for Testing the Performance of ScanningRaman Spectrometers3.Terminology3.1 DefinitionsFor terminology relating to molecularspectroscopic methods,refer to Terminology E131.3.2 Definitions of Terms Specific to This Standard:3.2.1 action limit,nthe limiting value from an instrumentperformance test,beyond which the spectrophotometer isexpected to produce potentially invalid results.3.2.2 check sample,na single pure compound,or aknown,reproducible mixture of compounds whose spectrum isconstant over time such that it can be used in a performancetest.3.2.3 level A test,na pass/fail spectrophotometer perfor-mance test in which the spectrum of a check or test sample iscompared against historical spectra of the same sample via amultivariate analysis.3.2.4 level B test,na pass/fail spectrophotometer perfor-mance test in which the spectrum of a check or test sample isanalyzed using a multivariate model,and the results of theanalysis are compared to historical results for prior analyses ofthe same sample.3.2.5 level one(1)test,na simple series of measurementsdesigned to provide quantitative data on various aspects ofspectrophotometer performance and information on which tobase the diagnosis of problems.3.2.6 level zero(0)test,na routine check of spectropho-tometer performance,which can be done in a few minutes,designed to visually detect significant changes in instrument1This guide is under the jurisdiction of ASTM Committee E13 on MolecularSpectroscopy and Separation Science and is the direct responsibility of Subcom-mittee E13.03 on Infrared and Near Infrared Spectroscopy.Current edition approved Jan.1,2013.Published January 2013.Originallyapproved in 1997.Last previous edition approved in 2007 as E1866 97(2007).DOI:10.1520/E1866-97R13.2For 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 performance and provide a database to determine instrumentperformance over time.3.2.7 optical reference filter,nan optical filt