Standard Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers: Level Zero and Level One TestsName übersetzen
NORM herausgegeben am 1.9.2021
Bezeichnung normen: ASTM E1421-99(2021)
Ausgabedatum normen: 1.9.2021
Zahl der Seiten: 12
Gewicht ca.: 36 g (0.08 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Fourier transform infrared, FT-IR, level one test, level zero test, performance test, spectrometers,, ICS Number Code 17.180.30 (Optical measuring instruments)
|Significance and Use|
4.1This practice permits an analyst to compare the general performance of an instrument on any given day with the prior performance of an instrument. This practice is not necessarily meant for comparison of different instruments with each other even if the instruments are of the same type and model. This practice is not meant for comparison of the performance of one instrument operated under differing conditions.
1.1This practice describes two levels of tests to measure the performance of laboratory Fourier transform mid-infrared (FT-MIR) spectrometers equipped with a standard sample holder used for transmission measurements.
1.2This practice is not directly applicable to Fourier transform infrared (FT-IR) spectrometers equipped with various specialized sampling accessories such as flow cells or reflectance optics, nor to Fourier transform near-infrared (FT-NIR) spectrometers, nor to FT-IR spectrometers run in step scan mode.
1.2.1If the specialized sampling accessory can be removed and replaced with a standard transmission sample holder, then this practice can be used. However, the user should recognize that the performance measured may not reflect that which is achieved when the specialized accessory is in use.
1.2.2If the specialized sampling accessory cannot be removed, then it may be possible to employ a modified version of this practice to measure spectrometer performance. The user is referred to Guide for a discussion of how these tests may be modified.
1.2.3Spectrometer performance tests for FT-NIR spectrometers are described in Practice .
1.2.4Performance tests for dispersive MIR instruments are described in Practice .
1.2.5For FT-IR spectrometers run in a step scan mode, variations on this practice and information provided by the instrument vendor should be used.
1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3.1ExceptionInformational inch-pound units are provided in .
1.4This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
|2. Referenced Documents|
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