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AWWA C200 Steel Water Pipe— 6 In. (150 mm) and Larger

Sec 4.2 Materials and workmanship Discontinuities in seamless pipe or in the parent metal of welded pipe shall be considered unacceptable when the depth of the discontinuity is greater than 12.5 percent of the nominal wall thickness. Cracks, sweats, and leaks in welds shall not be acceptable. Inspection shall be 100 percent visual inspection (VT) per ANSI/AWS D1.1 Table 6.1 for statically loaded nontubular connections by trained personnel. Sec 5 Verification Each length of pipe shall be tested by the manufacturer to a hydrostatic pressure. 5.2.2.3 Hydrostatic testing. When specified by the purchaser or when required by service conditions, in lieu of NDT referred to in Sec. 5.2.2.1, special sections may be tested in a hydrostatic testing machine. Special sections that cannot be tested in a hydrostatic testing machine may be hydrostatically tested by welding on heads, or by use of blind flanges, or as specified by the purchaser. After testing, the ends shall be reconditioned when necessary. The required pressure shall be maintained long enough to permit visual inspection of all seams. 5.2.2.1 Nondestructive testing (NDT). Special sections shall be tested by nondestructive testing (NDT) methods, which may be visual inspection (VT), dye penetrant, magnetic particle (MT), ultrasonic (UT), or radiographic (RT), as specified by the purchaser. In the absence of such purchaser specifications, the NDT method shall be chosen by the manufacturer. Nondestructive testing methods are: 1. Visual inspection (VT) per ANSI/AWS D1.1, Table 6.1, Statically Loaded Nontubular Connections. 2. Magnetic Particle (MT) per ANSI/AWS D1.1, Section 6, Part D, 6.14.4, acceptance criteria per Part C, 6.10, and Table 6.1, Statically Loaded Nontubular Connection OR” per ASME Section V, Article 7, acceptance criteria per ASME Section VIII, Div. 1, Appendix 6. 3. Liquid Penetrant (PT) per ANSI/AWS D1.1, Section 6, Part D, 6.14.5, acceptance criteria per Part C, 6.10, and Table 6.1, Statically Loaded Nontubular Connections “OR” per ASME Section V, Article 6, acceptance criteria per ASME Section VIII, Div. 1, Appendix B. 4. Ultrosonic (UT) per ANSI/AWS D1.1, Section 6, Part F,

acceptance criteria per Part C, 6.13.9, “OR” per ASME Section V, Article 4, acceptance criteria per ASME Section VIII, Div. 1, Appendix 12, “OR” API 5L, Sec. 9.7.4. 5. Radiographic (RT) per ANSI/AWS D1.1, Section 6, Part E, acceptance criteria per Part C, 5.12.1, “OR” per ASME Section V, Article 2, acceptance criteria per ASME Section VIII, Div. 1, Part UW, UW-51 or UW-52 as applicable, or API 5L, Sec. 9.7.3. AWWA C206 Field Welding of Steel Water Pipe Sec. 4.4 Qualification of Welding Procedures, Welders, and Welding Operators According AWS D1.1 Sec. 5.2 Testing Testing for joint leaks shall be performed unless otherwise specified by the purchaser. All welds shall be visually inspected in accordance with ANSI/AWS D1.1, Table 6.1, Visual Inspection Acceptance Criteria table for statically loaded nontubular connections. 5.2.1 Hydrostatic test. Tests for leaks in all types of welded joint pipelines shall be made by hydrostatically testing the entire pipeline, unless the procedures, frequency of tests, and standards for acceptance or rejection of an alternative nondestructive method are approved by the purchaser. If leakage exceeds the amount allowed in the purchaser’s specifications, leaks shall be located and repaired in conformance with Sec. 4.7. 5.2.2 Alternative tests. In lieu of the hydrostatic test, the purchaser shall approve nondestructive testing of welded joints. 5.2.2.1 Ultrasonic testing with backing rings. Field-butt joints with a backing ring may be tested by 100 percent ultrasonic testing of 10 percent of the joints, using methods and acceptance criteria in ANSI/ASME Sec. VIII. 5.2.2.2 Ultrasonic testing without backing rings. Fieldbutt joints without a backing ring shall be tested by 100 percent ultrasonic testing of 10 percent of the joints, using methods and acceptance criteria in ANSI/ASME

Sec. VIII or 100 percent radiograph of 10 percent of the joints, using methods and acceptance criteria in API Standard 1104. 5.2.2.3 Lap joints. Radiographic testing of lap joints shall not be utilized because of the difficulty inherent in interpreting the results. Single-welded lap joints may be tested using magnetic particle testing procedures and acceptance criteria as stated in ANSI/AWS D.1.1 Table 6.1, Visual Inspection Acceptance Criteria table. Double-welded lap joints can be tested by shop drilling and tapping for 1/8–1/4-in. (3.2–6.4-mm) national pipe thread in the spigot or bell end of the pipe. Apply 40 psi (276 kPa) of air, or other satisfactory gas, into the annular space between the two fillet welds and maintain for a period of 5 minutes. If the pressure remains at 40 psi (276 kPa), the test is complete. If the test pressure drops below 40 psi (276 kPa), paint the welds with a soap solution. Mark any leaks indicated by the escaping gas bubbles and repair leak indications per Sec. 4.7. Close the threaded openings with pipe plugs or by welding. 5.2.2.4 Vacuum box test. Both butt joint welds and fillet welds shall be tested using a vcuum box. In this test, the weld is painted with a soap solution; a clear plastic box with a foam perimeter is placed over the test section; and a vacuum is induced in the box (see Figure 1). Mark any leaks indicated by the escaping gas bubbles and repair according to Sec. 4.7.1. This test method may require additional hold-back for coatings and linings to allow a proper seal. ANSI/AWWA C203 Coal-Tar Protective Coatings and Linings for Steel Water Pipe 5.1.3 Coating and lining materials application, inspection, and rejection. When requested by the purchaser, coating and lining work shall be done in the presence of the purchaser. 5.1.4 Constructor’s samples. When required, the constructor shall submit samples of the coating or lining materials to be provided to the purchaser for testing, prior to any work done according to the provisions of this standard. Sec. 5.2 Electrical Inspection

5.2.1 General. The constructor shall conduct an electrical inspection on the entire surface of completed coal-tar-enamel protective pipe-coating systems, including hot-applied coal-tar-tape–coated special sections, connections, and fittings to ensure complete continuity of the protective coating. In addition, the constructor shall electrically inspect linings that have been applied or repaired by hand daubing and have been subjected to traffic of personnel entering and exiting the pipe, and any other areas that exhibit evidence of physical damage. Defects in the coating or lining shall be repaired. 5.2.2 Electrical test equipment. The electrical equipment used to test enamel and tape systems in the shop, yard, or field shall be a portable, low-amperage, adjustablevoltage, pulse-type holiday detector employing an audible signaling device. The holiday detector shall be provided with a coil-spring electrode or a suitable brushtype electrode. 5.2.2.1 Input power. The primary input wattage shall be no higher than 20 watts, and the minimum number of pulses at crest voltage shall be 20 per sec. 5.2.2.2 Operating voltage. 5.2.2.2.1 For electrical inspection of pipe coatings, the operating voltage of the detector shall be established according to the following procedure, but in no case shall the operating voltage exceed 15,000 V. A portion of the coated pipe that includes an overlap of the outerwrap and is located approximately 15 in. (380 mm) from one end of the pipe section shall be selected for inspection. (This location represents the maximum thickness of the coating and wrapping on the pipe.) Sec. 5.3 Thickness Testing 5.3.1 Coating thickness measurement. The thickness of the coating systems shall be measured according to ASTM D7091. Sec. 5.4 Test Procedures 5.4.1 General. This section refers to a number of ASTM and AWWA test methods (including test procedures described in other sections of this standard) to define physical properties of materials or completed coatings and linings. Test procedures have been developed to determine other physical properties of materials that are important and cannot be evaluated using existing ASTM test procedures (DO NOT APPLY )