standard specification for fabrication and erection of piping

out in all cases. In addition to these tests, other tests like macro/micro examination,
hardness tests, dye penetrant examination, charpy V-notch and U-notch impact test etc
shall be carried out on specimens depending upon the ytpe of base matter operating
conditions and requirements laid down in the detailed drawings and specifications. It
shall be the responsibility of the Contractor to carry out all the tests required to the
satisfaction of the Owner's inspector.
and shall release the procedure for qualification tests. The procedure qualification test
shall be carried out by the Contractor at his own expense. A complete set of test results
in format as per Exhibition attached shall be submitted to the owner's inspector
14.3 Welder's Qualificaton
a) Welders shall be qualified in accordance with the ASME Section –IX or
other applicable codes. The owner's inspector shall witness the test and
certify the qualification of each welder. Separately only those welders who
have been approved Exhibit –E (attached) and obtain express approval
before commencement of the work. It shall be the responsibility of
Contractor to carry out qualification tests of welders. For welding of the
only those welders with IBR Certifications, qualified by Boiler Inspectorate,
and acceptable to the local Boiler Inspector authority shall be employed.
b) The welders shall always have in their possession the identification card as
shown in Exhibit –G and shall produce it on demand by the Owner's inspector.
It shall be the responsibility of the Contractor to issue the identity cards after it
has been duly certified by the Inspector.
c) No welder shall be submitted to work without the possession of identity card.
d) If the welder is found to perform a type of welding in a position for which he
is not qualified, he shall be debarred from doing any further work. All welds
performed by an unqualified welder shall be cut and redone by a qualified
welder at the expense of the Contractor.
14.4 Visual Inspection
Inspection of all welds shall be carried out as per the latest editions of the applicable codes
and specifications. All finished welds shall be visually inspected for parallel and axial
alignment of the work, excessive reinforcement, concavity of welds, shrinkages cracks,
inadequate penetration, unrepaired burn-through, under cuts, dimentions of the weld,
surface porosity and other surface defects. Undercutting adjacement to the completed weld
shall not exceed the limits specified in the applicable standard/code.
14.5 Radiographic Examination
a) The Radiographic Examination procedure to be adopted shall be submitted by the
Contractor as per Exhibit-P and shall be got approved by the Owner's Inspector prior
to employment. The radiographic technique and procedure adopted shall conform to
the requirements mentioned in Article 2, as well Article (SE94, SE 142) of ASME Sec
V. The IQI sensitivity obtained shall be equal to or better than the requirements
mentioned in table 262.2 and table 272 of Article 2 of ASME Sec V for single wall
and double wall radiography respectively. Source side procedure/technique. The
acceptable limits of defects and removal of defects shall be as per the relevant codes of
fabrication. The contractor shall be responsible for carrying out Radiography,
rectification of defects and re-radiography of welds repaired/rectified.