UpCodes logo
Go To Full Code Chapter
Test coupons shall be welded and inspected, as a minimum, at the start of work and every 4 hours thereafter, or when the machine is idle for more than 30 minutes, and at the end of the work period. Test coupons shall be inspected on the I.D. and O.D. by a qualified quality control inspector. Test coupons shall also be welded at change of operator, weld head, welding power supply, or gas source. [NFPA 99: —]

Related Code Sections

1810.3.10.2 Soils and Foundations, Materials
yield strength of 45,000 psi (310 MPa) and a minimum elongation of 15 percent as shown by mill certifications or two coupon test samples per 40,000 ...
Section 1011 Boilers, Water Heaters and Pressure Vessels, Tests
Upon completion of the assembly and installation of boilers and pressure vessels, acceptance tests shall be conducted in accordance ...