1.1 本规程描述了两个级别的测试，以测量配备用于传输测量的标准样品架的实验室傅立叶变换中红外（FT-MIR）光谱仪的性能。 1.2 本规程不直接适用于配备各种专用采样附件（如流动池或反射光学元件）的傅立叶变换红外（FT-IR）光谱仪，也不适用于傅立叶变换近红外（FT-NIR）光谱仪，也不适用于在步进扫描模式下运行的FT-IR光谱仪。 1.2.1 如果可以拆下专用采样附件并用标准变速箱样本架更换，则可以使用此做法。然而，用户应认识到，测量的性能可能无法反映使用专用附件时所达到的性能。 1.2.2 如果无法拆除专用取样附件，则可以采用本规程的修改版本来测量光谱仪性能。用户参考指南 E1866 讨论如何修改这些测试。 1.2.3 在实践中描述了FT-NIR光谱仪的光谱仪性能测试 E1944年 . 1.2.4 在实践中描述了色散MIR仪器的性能测试 E932 . 1.2.5 对于在阶跃扫描模式下运行的FT-IR光谱仪，应使用该实践的变体和仪器供应商提供的信息。 1.3 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3.1 例外情况- 信息英寸磅单位在中提供 5.4 . 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 4.1 这种做法允许分析员将任何一天的工具一般性能与工具先前的性能进行比较。这种做法并不一定意味着要对不同的仪器进行相互比较，即使这些仪器的类型和型号相同。本规程并非用于比较在不同条件下操作的一种仪器的性能。

1.1 This 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. 1.2 This 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. 1.2.1 If 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. 1.2.2 If 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 E1866 for a discussion of how these tests may be modified. 1.2.3 Spectrometer performance tests for FT-NIR spectrometers are described in Practice E1944 . 1.2.4 Performance tests for dispersive MIR instruments are described in Practice E932 . 1.2.5 For FT-IR spectrometers run in a step scan mode, variations on this practice and information provided by the instrument vendor should be used. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3.1 Exception— Informational inch-pound units are provided in 5.4 . 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. ====== Significance And Use ====== 4.1 This 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.