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
rder material must also be considered in this case.
1. Scope
1.1 This practice outlines factors to be considered, describes design principles and procedures for water vapor retarder selection, and defines water vapor transmission values appropriate for established criteria. It is intended for the guidance of design engineers in preparing vapor retarder application specifications for control of water vapor flow through thermal insulation. It covers commercial and residential building construction
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