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DIN 51451:2024
Testing of petroleum products and related products - Analysis by infrared spectrometry - General working principles
This document specifies the theoretical and practical principles of infrared spectrometry (IR spectrometry) for the testing of mineral oil-based and synthetic oil-based products and their additives and contains specifications concerning the measurement principle, the design and function of the measuring instruments and listing of common terms and physical units.
Deutsches Institut für Normung [din]