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The only comparative analysis allowed on fasteners/anchors is when the specimen is tested on CBS block. Since this substrate has been determined to be the worst case application, comparative analysis is allowed to qualify approved anchors on concrete, metal, and wood.
Second, the fasteners/anchors submitted with comparative analysis shall not exceed the spacing at which the system was tested. This is due to the system's performance with the amount of fastening points on the original test. Spacing the fastening points further apart shall be verified with a test.
Third, this procedure applies to products that are impact resistant, and non-impact resistant.
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