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Scope

1.1 This practice covers two levels of tests to measure the performance of laboratory Fourier transform near infrared (FT-NIR) spectrometers. This practice applies to the short-wave near infrared region, approximately 800 nm (12 500 cm ^-1) to 1100 nm (9090.91 cm ^-1); and the long-wavelength near infrared region, approximately 1100 nm (9090.91 cm ^-1) to 2500 nm (4000 cm ^-1). This practice is intended mainly for transmittance measurements of gases and liquids, although it is broadly applicable for reflectance measurements.

1.2 The values stated in SI units are to be regarded as standard.

1.3 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.

Significance and Use

This practice permits an analyst to compare the general performance of a laboratory instrument on any given day with the prior performance of that instrument. This practice is not intended for comparison of different instruments with each other, nor is it directly applicable to dedicated process FT-NIR analyzers. This practice requires the use of a check sample compatible with the instrument under test as described in 5.3.

Keywords

calibration test; FT-NIR; Fourier transform near infrared; level one test; level zero test; performance test; spectrometers; ICS Number Code 17.180.30 (Optical measuring instruments)

To find similar documents by ASTM Volume:

03.06 (Molecular Spectroscopy; Surface Analysis)

To find similar documents by classification:

17.180.30 (Optical measuring instruments Including spectroscopes, geodetic instruments, etc. Ophthalmic optics and instruments, see 11.040.70 Laser equipment, see 31.260 Fibre optics, see 33.180 Optical equipment, materials and components, see 37.020 Photographic equipment lenses, see 37.040.10)

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