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40.07 PROCEDURE <br />A. The classification and size of the electrode, arc length, voltage and amperage <br />shall be suited to the thickness of the material, type of groove and welding <br />position. Welding current shall be within the range recommended by the <br />electrode manufacturer. <br />B. The maximum diameter of electrodes shall be as follows: <br />(1) 5/16" for all welds made in flat position except for root passes. <br />(2) 1/4" for horizontal fillet welds. <br />(3) 1/4' for root passes of fillet welds in the flat position. <br />C. The maximum size of single-pass fillet welds and root passes of multiple-pass <br />fillet welds shall be as follows: <br />(1) 3/8" in the flat position. <br />(2) 5/16" in the horizontal or overhead position. <br />(3) 1h" in the vertical position. <br />D. The progression of all passes in the vertical position shall be upwards. <br />40.08 INSPECTION <br />A. All welds will be visually inspected by a Certified Welding Inspector using <br />nondestructive techniques. <br />B. All discontinuities will be repaired. Most commonly encountered <br />discontinuities include porosity, slag, incomplete fusion, incomplete <br />penetration, undercut, overlap and cracks. <br />C. Repairs will be made at the Contractor's expense. Work will not proceed <br />further until defective welds are repaired. <br />TS40-3 . 47Z <br />