Standard Guide for Establishing Spectrophotometer Performance Tests

SCOPE
1.1 This guide describes basic procedures that can be used to develop spectrophotometer performance tests. The guide is intended to be applicable to spectrophotometers operating in the ultraviolet, visible, near-infrared and mid-infrared regions.
1.2 This guide is not intended as a replacement for specific practices such as Practices E 275, E 925, E 932, E 958, E 1421, or E 1683 that exist for measuring performance of specific types of spectrophotometers. Instead, this guide is intended to provide guidelines in how similar practices should be developed when specific practices do not exist for a particular spectrophotometer type, or when specific practices are not applicable due to sampling or safety concerns. This guide can be used to develop performance tests for on-line process spectrophotometers.
1.3 This guide describes univariate level zero and level one tests, and multivariate level A and level B tests which can be implemented to measure spectrophotometer performance. These tests are designed to be used as rapid, routine checks of spectrophotometer performance. They are designed to uncover malfunctions or other changes in instrument operation, but do not specifically diagnose or quantitatively assess the malfunction or change. The tests are not intended for the comparison of spectrophotometers of different manufacture.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Historical
Publication Date
09-Mar-1997
Current Stage
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Designation:E1866–97 (Reapproved2002)
Standard Guide for
1
Establishing Spectrophotometer Performance Tests
This standard is issued under the fixed designation E1866; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope E387 Test Method for Estimating Stray Radiant Power
2
RatioofSpectrophotometersbytheOpaqueFilterMethod
1.1 This guide describes basic procedures that can be used
E925 PracticeforthePeriodicCalibrationofNarrowBand-
to develop spectrophotometer performance tests. The guide is
2
Pass Spectrophotometers
intended to be applicable to spectrophotometers operating in
E932 Practice for Describing and Measuring Performance
the ultraviolet, visible, near-infrared and mid-infrared regions.
2
of Dispersive Infrared Spectrometers
1.2 This guide is not intended as a replacement for specific
E958 Practice for Measuring Practical Spectral Bandwidth
practicessuchasPracticesE275,E925,E932,E958,E1421,
2
of Ultraviolet-Visible Spectrophotometers
or E1683 that exist for measuring performance of specific
E1421 PracticeforDescribingandMeasuringPerformance
types of spectrophotometers. Instead, this guide is intended to
of Fourier Transform Infrared (FT-IR) Spectrometers:
provide guidelines in how similar practices should be devel-
2
Level Zero and Level One Tests
oped when specific practices do not exist for a particular
E1655 Practice for Infrared, Multivariate, Quantitative
spectrophotometer type, or when specific practices are not
2
Analysis
applicable due to sampling or safety concerns. This guide can
E1683 Practice for Testing the Performance of Scanning
be used to develop performance tests for on-line process
2
Raman Spectrometers
spectrophotometers.
1.3 This guide describes univariate level zero and level one
3. Terminology
tests, and multivariate level A and level B tests which can be
3.1 Definitions—For terminology relating to molecular
implemented to measure spectrophotometer performance.
spectroscopic methods, refer to Terminology E131.
These tests are designed to be used as rapid, routine checks of
3.2 Definitions of Terms Specific to This Standard:
spectrophotometer performance.They are designed to uncover
3.2.1 action limit, n—the limiting value from an instrument
malfunctions or other changes in instrument operation, but do
performance test, beyond which the spectrophotometer is
not specifically diagnose or quantitatively assess the malfunc-
expected to produce potentially invalid results.
tionorchange.Thetestsarenotintendedforthecomparisonof
3.2.2 check sample, n—a single pure compound, or a
spectrophotometers of different manufacture.
known,reproduciblemixtureofcompoundswhosespectrumis
1.4 This standard does not purport to address all of the
constant over time such that it can be used in a performance
safety concerns, if any, associated with its use. It is the
test.
responsibility of the user of this standard to establish appro-
3.2.3 level A test, n—a pass/fail spectrophotometer perfor-
priate safety and health practices and determine the applica-
mance test in which the spectrum of a check or test sample is
bility of regulatory limitations prior to use.
compared against historical spectra of the same sample via a
2. Referenced Documents multivariate analysis.
3.2.4 level B test, n—a pass/fail spectrophotometer perfor-
2.1 ASTM Standards:
2
mance test in which the spectrum of a check or test sample is
E131 Terminology Relating to Molecular Spectroscopy
analyzed using a multivariate model, and the results of the
E275 Practice for Describing and Measuring Performance
analysis are compared to historical results for prior analyses of
of Ultraviolet, Visible, and Near-Infrared Spectrophotom-
2
the same sample.
eters
3.2.5 level one (1) test, n—a simple series of measurements
designed to provide quantitative data on various aspects of
spectrophotometer performance and information on which to
1
This guide is under the jurisdiction of ASTM Committee E13 on Molecular
base the diagnosis of problems.
Spectroscopy and Separation Science and is the direct responsibility of Subcom-
3.2.6 level zero (0) test, n—a routine check of spectropho-
mittee E13.03 on Infrared and Near Infrared Spectroscopy.
tometer performance, which can be done in a few minutes,
Current edition approved Sept. 10, 2002. Published September 2002.
2
Annual Book of ASTM Standards, Vol 03.06. designed to visually detect significant changes in instrument
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E1866–97 (2002
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