Function:
Determining the resistance of glazing material to impact by the penetration method.
Principle:
The specimen is supported vertically in a steel frame and an impact shot bag is released from a pre-determined height to strike the specimen at the centre. The height is progressively increased until fracture occurs.
Related Standards:
AS/NZS 2208 Safety glazing materials in buildings – Appendix D: Impact Test
GB Safety glazing materials in building Part 3: Laminated glass – Appendix C: Test device for the impact performance of shot bag
ANSI Safety Glazing Materials Used in Buildings - Safety Performance Specifications and Methods of Test - Clause : Impact Test
Apparatus:
1) Impact testing frame:
Frame Size: 1900mm*1500mm*3570mm
Samples Size: 1930mm*864mm
Lift: Electric
Release: Auto
Maximum impact height: 1200mm (customized)
Rubber Pad Width: 15mm
Rubber Pad Thickness: 3mm
Rubber Pad Hardness: Shore A50
2) Impact shot bag:
Weight: 45kg± 46kg±
Height: 330mm ± 13mm
Max diameter: 250mm
Leather thickness:
Lead sand size:
Customized: 25kg /48kg
