Question

Prior to initial operation each piping installation, including components and workmanship shall be examined in accordance with ASME B31.3, paragraph 341. When should examination of P-Numbers 3,4, and 5 materials be carried out?

Answer 1

Examination of P-Numbers 3, 4, and 5 materials should be conducted prior to the initial operation and in compliance with ASME B31.3 to ensure piping systems are defect-free and constructed per code requirements.

Step-by-step explanation:

The examination of P-Numbers 3,4, and 5 materials should be carried out prior to the initial operation of a piping installation in accordance with ASME B31.3, paragraph 341. This code stipulates that the examination must ensure that the materials, components, and workmanship adhere to the standards set out for process piping. The purpose is to verify that the piping system is free of defects and is constructed according to the code requirements before it is put into service. These examinations are necessary to ensure the safe and reliable operation of the piping system.