主题：【已应助】悬赏ASTM E 1252 现行最新版本。

悬赏ASTM E 1252 现行最新版本。

ASTM E1252 - 98(2007) Standard Practice for General Techniques for Obtaining Infrared Spectra for Qualitative Analysis

Significance and Use

Infrared spectroscopy is the most widely used technique for identifying organic and inorganic materials. This practice describes methods for the proper application of infrared spectroscopy.

1. Scope

1.1 This practice covers the spectral range from 4000 to 50 cm⁻¹ and includes techniques that are useful for qualitative analysis of liquid-, solid-, and vapor-phase samples by infrared spectrometric techniques for which the amount of sample available for analysis is not a limiting factor. These techniques are often also useful for recording spectra at frequencies higher than 4000 cm^–1, in the near-infrared region.

1.2 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. Specific precautions are given in 6.5.1.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

E131 Terminology Relating to Molecular Spectroscopy
E168 Practices for General Techniques of Infrared Quantitative Analysis
E334 Practice for General Techniques of Infrared Microanalysis
E573 Practices for Internal Reflection Spectroscopy
E932 Practice for Describing and Measuring Performance of Dispersive Infrared Spectrometers
E1421 Practice for Describing and Measuring Performance of Fourier Transform Mid-Infrared (FT-MIR) Spectrometers: Level Zero and Level One Tests
E1642 Practice for General Techniques of Gas Chromatography Infrared (GC/IR) Analysis