Advance Techo

6.4 Resistance to Human Impact6.4.1 Test Requirements6.4.1.1 When tested by the method given in 6.4.4, each test piece shall either not break or shall break as defined in one of 6.4.1.2 or 6.4.1.3.6.4.1.2 Numerous cracks may appear, but no shear or opening is allowed within the test specimen through which a 76 ± 1 mm diameter sphere can pass when a maximum force of 25 N is applied (in accordance with 6.4.7). Additionally, if particles are detached from the test piece up to 3 min after impact, they shall, in total, weigh not more than the mass equivalent to 10 000 mm2 of the original test piece. The largest single particle shall weigh not more than the mass equivalent of 4 400 mm2 of the original test piece. If disintegration occurs, the 10 largest crack-free particles collected within 5 min of impact shall weigh not more than the mass equivalent to 6 500 mm2 of the original test piece. The particles shall be selected only from the portion of the original test piece exposed in the test frame. Only the exposed area of any particle retained in the test frame shall be taken into account in determining the mass equivalent.6.4.1.3 The 10 largest crack-free particles collected within 3 min after impact shall weigh not more than the mass equivalent of 6 500 mm2 of the original test piece.6.4.2 Test Apparatus6.4.2.1 Main frameConstructed from welded or bolted, hot-rolled steel channel sections with rounded edges, designed to present a rigid and flat surface to the sub-frame (see Fig. 15 and 16). The lower cross members shall be securely fixed to a concrete floor.NOTE— Additional support to the frame can be provided, if required, by means of horizontal steel sections fixed to an adjacent rigid wall (see Fig. 15, key 4).The dimensions of the main frame (see Fig. 17) shall be as follows:a) internal width: (847 ± 5) mm; andb) internal height: (1 910 ± 5)

Additional Information:

• Item Code: ATHNTM
• Production Capacity: 100
• Delivery Time: Ready stock
• Packaging Details: Wooden