GB/T 328.4-2007
ActiveTest methods for building sheets for waterproofing - Part 4: Bitumen sheets for waterproofing-thickness and mass per unit area
建筑防水卷材试验方法 第4部分：沥青防水卷材 厚度、单位面积质量
Application Summary AI generated
This standard specifies the test methods for determining the thickness and mass per unit area of bitumen sheets used in building waterproofing. It is applied in the construction industry for quality control and compliance testing of waterproofing membranes during manufacturing and before installation on roofs, basements, or other structural elements.
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