DIN EN 993-13-1995 密封成形耐火产品试验方法.第13部分:试验室用测温锥基准角规范
Methods of test for dense shaped refractory products - Part 13: Specification for pyrometric reference cones for laboratory use; German version EN 993-13:1995
The document specifies the characteristics of a standard series of pyrometric reference cones, which are used for determining the pyrometric cone equivalent (refractoriness) of refractory materials, over the temperature range 1500 to 1800 ?