GSO ISO 8894-2:2014
耐火材料导热系数的测定 第2部分：热丝法（平行法）

Refractory materials -- Determination of thermal conductivity -- Part 2: Hot-wire method (parallel)

非常抱歉，我们暂时无法提供预览，您可以试试： 免费下载 GSO ISO 8894-2:2014 前三页，或者稍后再访问。

您也可以尝试购买此标准，
点击右侧 “立即购买” 按钮开始采购（由第三方提供）。

标准号

GSO ISO 8894-2:2014

发布

2014年

发布单位

GSO

当前最新

GSO ISO 8894-2:2014

 

 

适用范围

This part of ISO 8894 describes a hot-wire (parallel) method for the determination of the thermal conductivity of refractory products and materials. It is applicable to dense and insulating shaped products and to powdered or granular materials (see 6.2), for thermal conductivities of less than 25 W/m·K. The limits are imposed by the thermal diffusivity of the test material and therefore by the dimensions of the test pieces; higher thermal conductivities can be measured if larger pieces are used. Electrically conducting materials cannot be measured. NOTE 1 The thermal conductivity of products with a hydraulic or chemical bond can be affected by the appreciable amount of water that is retained after hardening or setting and is released on firing. These materials can therefore require pretreatment. The nature and extent of such pretreatment, and the period for which the test piece is held at the measurement temperature as a preliminary to carrying out the test, are details that are outside the scope of this part of ISO 8894 and are agreed between the parties concerned. NOTE 2 In general, it is difficult to make measurements on anisotropic materials and the use of this method for such materials is also agreed between the parties concerned.

GSO ISO 8894-2:2014相似标准

推荐