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B51-14 (R2019) – Boiler, pressure vessel, and pressure piping code

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ISO 19618:2025

ISO 19618:2025 Fine ceramics (advanced ceramics, advanced technical ceramics) – Measurement method for normal spectral emissivity using blackbody reference with an FTIR spectrometer

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Description

This document specifies a method used for the determination of normal spectral emissivity and normal quasi-total emissivity of fine ceramics using blackbody reference with a Fourier transform infrared spectrometer (FTIR) at elevated temperatures. This method is applicable to fine ceramics, ceramic matrix composites, and continuous fibre-reinforced ceramic matrix composites which are opaque and highly non-reflective at wavelengths between 1,67 μm and 25 μm. The applicable temperature range is approximately 350 K to 1 100 K.

Edition

2

Published Date

2025-01-13

Status

PUBLISHED

Pages

13

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

This document specifies a method used for the determination of normal spectral emissivity and normal quasi-total emissivity of fine ceramics using blackbody reference with a Fourier transform infrared spectrometer (FTIR) at elevated temperatures. This method is applicable to fine ceramics, ceramic matrix composites, and continuous fibre-reinforced ceramic matrix composites which are opaque and highly non-reflective at wavelengths between 1,67 μm and 25 μm. The applicable temperature range is approximately 350 K to 1 100 K.

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