performed. The reports shall be dated after award of this
contract, shall state the contractor's name and address, shall
name the project and location, and shall list the specific
requirements which are being certified.
1.3
GENERAL REQUIREMENTS
1.3.1
Welding
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NOTE: When the need exists for more stringent
welding requirements, the designer may develop an
alternate paragraph from industry standards using
the applicable portions of Section 05093A WELDING
PRESSURE PIPING as a guide.
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Piping shall be welded in accordance with qualified procedures using
performance qualified welders and welding operators. Procedures and
welders shall be qualified in accordance with ASME BPVC SEC IX. Welding
procedures qualified by others, and welders and welding operators qualified
by another employer may be accepted as permitted by ASME B31.1. The
Contracting Officer shall be notified at least 24 hours in advance of tests
and the tests shall be performed at the work site if practicable. The
Contracting Officer shall be furnished with a copy of qualified procedures
and a list of names and identification symbols of qualified welders and
welding operators. The welder or welding operator shall apply his assigned
symbol near each weld he makes as a permanent record. Structural members
shall be welded in accordance with Section 05090A WELDING, STRUCTURAL.
1.3.2
Jointing Thermoplastic and Fiberglass Piping
Piping shall be jointed by performance qualified joiners using qualified
procedures in accordance with AGA XR0104. Plastic Pipe Manual for Gas
Service. The Contracting Officer shall be furnished with a copy of
qualified procedures and list of and identification symbols of qualified
joiners.
1.3.3
Standard Products
Materials and equipment shall be the standard products of a manufacturer
regularly engaged in the manufacture of the products and shall essentially
duplicate items that have been in satisfactory use for at least 2 years
prior to bid opening. Asbestos or products containing asbestos shall not
be used. Manufacturer's descriptive data and installation instructions
shall be submitted for approval for compression-type mechanical joints used
in joining dissimilar materials and for insulating joints. Valves, flanges
and fittings shall be marked in accordance with MSS SP-25.
1.3.4
Verification of Dimensions
The Contractor shall become familiar with all details of the work, verify
all dimensions in the field, and shall advise the Contracting Officer of
any discrepancy before performing the work.
SECTION 15190A
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