International Standard
ISO 528:1983
Refractory products — Determination of pyrometric cone equivalent (refractoriness)
Reference number
ISO 528:1983
ISO 528:1983
Edition 1
1983-12
1983-12
© ISO 2024
International Standard
p
ISO 528:1983
4596
Published
(Edition 1, 1983)
This standard was last reviewed and confirmed in 2020.
Therefore this version remains current.
Abstract
The specified method is used for determining the pyrometric cone equivalent (refractoriness) of siliceous, low alumina fireclay and fireclay refractory materials and products. Its usefull range of application depends on the availability of suitable pyromeric reference cones. It may also be used for roughly determining the refractoriness of other refractory materials. The pyrometric cone equivalent of the test material is expressed by the number or numbers of the pyrometric reference cone or cones.
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