ASTM C740低温作业中真空反射隔热标准规范
日期:2012-02-13 19:07
consist of alternate layers of a low-emittance metal and an insulating layer combined such that metal-to-metal contact in the heat flow direction is avoided and direct heat conduction is minimized. These are commonly referred to as multilayer insulations (MLI) or super insulations (SI) by the industry.
1.2 The practice covers the use of these insulation constructions where the warm boundary temperatures are below approximately 450 K.
1.3 Insulations of this construction are used when apparent
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