ASTM E1944-1998(2007)
描述和测量实验室傅里叶变化近红外线(FT－NIR)光谱分析仪性能的标准实施规程;零级和一级试验

Standard Practice for Describing and Measuring Performance of Laboratory Fourier Transform Near-Infrared (FT-NIR) Spectrometers: Level Zero and Level One Tests

标准号

ASTM E1944-1998(2007)

发布日期

1998年

实施日期

废止日期

无

中国标准分类号

N53

国际标准分类号

17.180.30 (Optical measuring instruments)

发布单位

US-ASTM

适用范围

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.

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.

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