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DRAWINGS AND SPECIFICATIONS - page 33 / 41

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4.  Rib Thickness:  Plus or Minus 1/8 inch (3 mm).

5.  Rib to Edge of Flange:  Plus or Minus 1/8 inch (3 mm).

6.  Distance between Ribs:  Plus or Minus 1/8 inch (3 mm).

7.  Variation from Square or Designated Skew (Difference in Length of the Two Diagonal 8.     

Measurements):  Plus or Minus 1/8 inch per 72 inches (3 mm per 2 m) or 1/2 inch (13 mm) total,

whichever is greater.

8.  Length and Width of Block-outs and Openings within One Unit: Plus or Minus 1/4 inch (6 mm).

9.  Location and Dimension of Block-outs Hidden from View and Used for HVAC and Utility     

    Penetrations: Plus or Minus 3/4 inch (19 mm).

10. Dimensions of Haunches:  Plus or Minus 1/4 inch (6 mm).

11. Haunch Bearing Surface Deviation from Specified Plane: Plus or Minus 1/8 inch (3 mm).

12  Difference in Relative Position of Adjacent Haunch Bearing Surfaces from Specified

     Relative Position:  Plus or Minus 1/4 inch (6 mm).

13. Bowing:  Plus or Minus L/360, maximum 1 inch (25 mm).

14. Local Smoothness:  1/4 inch per 10 feet (6 mm per 3 m).

15. Warping: 1/16 inch per 12 inches (1.5 mm per 300 mm) of distance from the nearest adjacent

     corner.

16. Tipping and Flushness of Plates:  Plus or Minus 1/4 inch (6 mm).

17. Dimensions of Architectural Features and Rustications:  Plus or Minus 1/8 inch (3 mm).

C.  Position Tolerances:  For cast-in items measured from datum line location, as indicated on Shop

     Drawings.

1.  Weld Plates:  Plus or Minus 1 inch (25 mm).

2.  Inserts:  Plus or Minus 1/2 inch (13 mm).

3.  Handling Devices:  Plus or Minus 3 inches (75 mm).

4.  Reinforcing Steel and Welded Wire Reinforcement:  Plus or Minus 1/4 inch (6 mm) where

    position has structural implications or affects concrete cover; otherwise, Plus or Minus 1/2 inch

    (13 mm).

5.  Reinforcing Steel Extending out of Member:  Plus or Minus 1/2 inch (13 mm) of plan dimensions.

6.  Tendons:  Plus or Minus 1/4 inch (6 mm), vertical; Plus or Minus 1 inch (25 mm), horizontal.

7.  Location of Rustication Joints:  Plus or Minus 1/8 inch (3 mm).

8.  Location of Opening within Panel:  Plus or Minus 1/4 inch (6 mm).

9.  Location of Flashing Reglets:  Plus or Minus 1/4 inch (6 mm).

10. Location of Flashing Reglets at Edge of Panel:  Plus or Minus 1/8 inch (3 mm).

11. Reglets for Glazing Gaskets:  Plus or Minus 1/8 inch (3 mm).

12. Electrical Outlets, Hose Bibs:  Plus or Minus 1/2 inch (13 mm).

13. Location of Bearing surface from End of Member:  Plus or Minus 1/4 inch (6 mm).

14. Allowable Rotation of Plate, Channel Inserts, Electrical Boxes: 2-degree rotation or 1/4 inch (6   

     mm) maximum over the full dimension of the unit.

15. Position of Sleeve:  Plus or Minus 1/2 inch (13 mm).

16. Location of Window Washer Track or Buttons:  Plus or Minus 1/8 inch (3 mm).

Delete paragraph below if brick faced architectural units are not used.  The number of bricks allowed these misalignments should be limited to 2 percent of the bricks on the unit.

D.  Brick-Faced Architectural Precast Concrete Units.

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