Draft
International StandardISO/DIS 8264
Hard coal — Determination of the swelling properties using a dilatometer
Reference number
ISO/DIS 8264
ISO/DIS 8264
Edition 2
© ISO 2026
Proyecto Norma internacional
ISO/DIS 8264
93978
Este borrador de Norma Internacional se encuentra en la fase de consultas con los miembros de ISO.
Reemplazará ISO 8264:1989
Resumen
A test piece, in the form of a pencil, prepared from powdered coal is heated at a constant rate in a steel retort positioned in a furnace, the temperature monitoring system having been previously calibrated using two reference metals of known melting points. The change in level of a piton resting upon the test piece is observed continuously, and record is produced which is characteristic of the swelling properties of the coal.
Informaciones generales
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Estado: En desarrolloEtapa: DIS registrado [40.00]
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Edición: 2Número de páginas: 13
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Comité Técnico :ISO/TC 27/SC 5ICS :73.040
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Ciclo de vida
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Anteriormente
PublicadoISO 8264:1989
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Ahora