[Review of normal spectral emissivity standard reference materials]

Area of Science:

• Metrology and Materials Science
• Thermodynamics and Heat Transfer
• Optical Engineering

Context:

• Accurate spectral emissivity measurement is vital for applications in remote sensing, thermal management, and industrial process control.
• Current methods rely on calibration using standard reference materials (SRMs) to ensure measurement accuracy and comparability.
• The development and validation of reliable SRMs are essential for the dissemination of spectral emissivity quantity.

Purpose:

• To introduce and analyze standard reference materials for spectral emissivity measurement.
• To evaluate existing SRM data from the National Institute of Standards and Technology (NIST) and European metering bodies.
• To explore the advantages and disadvantages of specific SRMs, such as Armco iron and Silicon Carbide (SiC).

Summary:

• This paper reviews spectral emissivity standard reference materials (SRMs) used for calibrating measurement apparatus.
• It examines NIST-proposed data and analyzes European metering departments' suggested SRMs.
• The study discusses the pros and cons of Armco iron and SiC as SRMs and summarizes their characteristics.

Impact:

• Provides a comprehensive overview of current spectral emissivity SRMs, aiding researchers and metrologists.
• Highlights the strengths and weaknesses of commonly used SRMs, informing material selection.
• Contributes to the prospective development of improved spectral emissivity measurement standards and calibration methodologies.