ASTM C755热绝缘用水蒸气缓凝剂选择的标准规范
日期:2012-02-13 19:09
atives may be approximately equivalent on an installed basis since the wider material has fewer seams and joints.
For another example, when selecting mastic or coating retarder materials, the choice of a product having a permeance value somewhat higher than the lowest obtainable might be justified on the basis of its easier application techniques, thus ensuring as installed system attainment of the specified permeance. The permeance of the substrate and its effects on the application of the reta
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04/19 18:28