ASTM E1897
Standard Practice for Measuring and Compensating for Transmittance of an Attenuating Medium Using Infrared Imaging Radiometers
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About This Item
ASTM E1897 is a technical standard that addresses how to measure and compensate for transmittance effects in an attenuating medium when using infrared imaging radiometers. It is relevant when infrared measurements must account for signal loss through a medium that can reduce accuracy. By defining a consistent practice, the standard helps users obtain more reliable thermal imaging results and supports better interpretation of radiometric data in practical testing and inspection work.
Purpose of ASTM E1897
The purpose of ASTM E1897 is to provide a standardized practice for handling transmittance-related effects that can influence infrared imaging radiometers. In simple terms, it helps users measure how much energy is transmitted through an attenuating medium and compensate for that loss when evaluating thermal scenes. This supports more consistent temperature-related readings, especially where accuracy depends on correcting for the medium between the instrument and the target.
Common use cases of ASTM E1897
This standard is commonly used in infrared imaging workflows where measurements pass through a medium that may absorb, scatter, or otherwise reduce transmitted infrared energy. It is useful for labs, inspection teams, and engineering groups working with radiometers that need corrected data rather than raw apparent readings. ASTM E1897 may also support equipment evaluation and method development where repeatable transmittance compensation is important to the measurement process.
Why ASTM E1897 matters
ASTM E1897 matters because uncorrected transmittance effects can lead to inconsistent or misleading infrared results. Using a recognized ASTM standard helps improve measurement comparability, supports quality control, and strengthens confidence in test outcomes. It can also be valuable in procurement and compliance settings, where buyers and users need a clear technical reference for how infrared imaging radiometers should account for attenuating media during evaluation and reporting.
- Infrared transmittance measurement practice
- Compensation for attenuating media
- Radiometric data correction
- Repeatable inspection and testing
- Quality and compliance reference
- Publication Date: 2022-12-15
- Publisher: ASTM
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