---
title: "ASTM E1252"
url: "https://mat-cs.com/astm-e1252/"
description: " This practice covers the spectral range from 4000 cm−1 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."
---

ASTM Standard

# ASTM E1252

Standard Practice for General Techniques for Obtaining Infrared Spectra for Qualitative Analysis

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## Significance and Use

4.1 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.

## Scope

1.1 This practice covers the spectral range from 4000 cm−1 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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.