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
ASTM C755 Standard Practice for Selection of Water Vapor Retarders for Thermal Insulation
ASTM C755热绝缘用水蒸气缓凝剂选择的标准规范
Experience has shown that uncontrolled water entry into thermal insulation is the most serious factor causing impaired performance. Water entry into an insulation system may be through diffusion of water vapor, air leakage carrying water vapor, and leakage of surface water. Application specifications for insulation systems that operate below ambient dew-point temp
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