The difference between blackboard thermometer and black standard thermometer Shanghai Maiyuan Environmental Experimental Equipment Factory Shanghai Maijie Experimental Equipment Co., Ltd. Tel: Yirun Agricultural Cooperative , https://www.yiruncn.com
The difference between a blackboard thermometer and a black standard thermometer:
For historical reasons, there are two different types of blackboard thermometers (BPT) that are used. One is a blackboard that is widely used in European countries and ISO and is mounted on an insulating plastic board. It is also called a black standard thermometer (BST). The other is an uninsulated blackboard used by the American Society for Testing and Materials. Due to different exposure conditions, the temperature of the black standard thermometer will be higher than that of the blackboard thermometer. Both types have advantages and disadvantages. Because there are two types of black standard thermometers and blackboard thermometers, the test report should indicate the type of thermometer used.
The surface temperature of the sample is an important aging factor in addition to radiation. Direct measurement of the actual sample is expensive and technically difficult, and it is prone to measurement errors, so the surface temperature of the sample is obtained by measuring the temperature of the standard metal plate. The blackboard indicates the high temperature of the zui that the sample surface may reach.
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