1. Floor Level Tension Anchors Embedded in Brick. If existing rod anchors embedded in brick are to be utilized as all or part of the required wall anchorage system at the floor level, not less than five percent of such existing rod anchors shall be tested by an approved testing laboratory or under the supervision of the architect or engineer. The minimum number of anchors tested shall be four per floor, with two tests at walls with joists framing into the wall and two tests at walls with joists parallel to the wall but not less than five percent of the total number of existing tension anchors at each level. The test apparatus shall be supported on the masonry wall at a minimum distance of the wall thickness from the anchor tested. The rod anchor shall be given a preload of three hundred pounds prior to establishing a datum for recording elongation. The tension test load reported shall be recorded at one-eighth inch relative movement of the anchor and the adjacent masonry surface. Results of all tests shall be reported. The report shall include the test results as related to the wall thickness and joist orientation. Ends of existing anchors shall be secured into the wood framing by a positive mechanical attachment.

2. Floor or Roof Level Anchors Embedded in Concrete. Existing rod anchors at floor or roof levels that are embedded in existing concrete or gunite applied to the opposite side of the wall need not be tested provided such embedment is verified by observation and report by an approved testing agency or the architect or engineer for at least one anchor, and all anchors observed, in each wall at each level for which such the anchors are to be utilized as all or part of the required wall anchorage system. Other evidence of such embedment may be approved by the city building official.