国产精品99久久久久久www_乱小说录目伦合集最新章节_国产区小视频_一级毛片aa免费观看

【Scope of Application】

It is suitable for impact puncture test of asphalt and polymer roofing waterproof membrane.

【Standards compliant】

GB/T 328.24—2007 "Test Methods for Building Waterproof Rolled Materials" "Part 24: Impact Resistance of Asphalt and Polymer Waterproof Rolled Materials"

【technical parameter】

1. Vertical drop height of drop hammer: (600±5)㎜

2. The weight of the falling weight component: (1000±10)g

3. Diameter of the puncture tool (and weight ring): Φ10mm (thick 7.5mm weight ring), Φ20mm (thick 6mm weight ring), Φ30mm (thick 4mm weight ring), Φ40mm (none)

4. Pressure ring size and quality: inner diameter Φ200mm, (5000±50)g

5. Stainless steel plate size: 300㎜×300㎜×10㎜

6. Polystyrene board size: 300㎜×300㎜×50㎜