ASTM C921热绝缘护套材料的性能测定的操作标准
日期:2012-02-13 19:15
ASTM C921 Standard Practice for Determining the Properties of Jacketing Materials for Thermal Insulation
ASTM C921热绝缘护套材料的性能测定的操作标准
This practice establishes the standard procedures for determining the material and physical properties for jacketing materials applied over thermal insulation on piping and equipment, including materials applied solely for physical protection, and materials applied as vapor retarders. This practice does not cover field applied mastics or barrier co
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