1.1本试验方法是对试验方法C201的补充，并应与该试验方法结合使用，以测定隔热耐火砖的导热系数。 1.2以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 3.1隔热耐火砖（IFB）的导热性是选择特定热性能的耐火砖所需的一种性能。 用户选择砖以提供指定的热损失和冷面温度，而不超过砖的温度限制。本试验方法确定了热电偶的放置和量热计中试样的定位。本试验方法必须与试验方法C201一起使用。

1.1 This test method supplements Test Method C201, and shall be used in conjunction with that test method to determine the thermal conductivity of insulating firebrick. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== 3.1 The thermal conductivity of insulating firebrick (IFB) is a property required for the selection of IFB for a specific thermal performance. Users select brick to provide a specified heat-loss and cold-face temperature without exceeding the temperature limitation of the brick. This test method establishes placement of thermocouples and the positioning of test samples in the calorimeter. This test method must be used with Test Method C201.