Mechanical piping systems.
(2) X-ray inspection. The use of X-rays and radioactive isotopes for the inspection of welded piping joints must be in conformance with the American National Standard Safety Standard for Nonmedical X-ray and Sealed Gamma-Ray Sources, ANSI Z 54.1-1963.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050, and
49.17.060. WSR 15-24-100, § 296-24-72003, filed 12/1/15, effective 1/5/16; Order 73-5, § 296-24-72003, filed 5/9/73 and Order 73-4, § 296-24-72003, filed 5/7/73.]