Standard Practice for Preparing Coke Samples for Microscopical Analysis by Reflected Light

Importancia y uso:

5.1 Blocks or briquets of coke prepared in accordance with the laboratory procedures of this practice will have flat, scratch-free surfaces suitable for examination with a microscope using reflected light illumination. The polished surface of the blocks or briquets prepared using this practice will contain particles representative of the original gross sample. Polished blocks of coke will preserve the porosity and undisturbed distributions of carbon forms required in the production of sequences of stitched and tiled image mosaics. Such images are required for microscopic porosity measurement. Microstructure and microtexture of coke have a strong influence on the coke strength, and the properties of the metallurgical coke in terms of its use in industrial applications.

5.2 Samples prepared by this practice are used for microscopical determination of the textural components in coke (see Test Method D5061) and the measurement of coke reflectance. Major uses for metallurgical coke examination are in quality analysis to ensure coke production requirements, and in research and development.

Subcomité:

D05.28

Referida por:

D5061-19

Volúmen:

05.06

Número ICS:

75.160.10 (Solid fuels)

Palabras clave:

briquets; coke; coke block; microscopy ;