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STRUCTURAL STEEL Section 05100 15-1207 3. Provide letter certifying all materials supplied are from heat numbers covered by supplied mill certificates. Include in letter the physical location of each material type and/or heat number in the project (i.e. walls, braced frames etc.). 4. Unidentified Material Tests: Where identification of materials by heat number to mill tests cannot be made, Owner's Testing Agency shall test unidentified materials as described below. 5. Provide all certification, verifications, and other test data required to substantiate specified material properties at no additional cost to the Owner. E. Testing and Inspection: Tests and Inspections performed by Independent Testing Agency are specified below in Articles SOURCE QUALITY CONTROL and FIELD QUALITY CONTROL. Duties and limitations of Independent Testing Agency, test costs and test reports in conformance with pertinent sections of Division 01. The Testing Agency will review all submittals and testing of materials. F. The following standards are the minimum level of quality required. Provide higher quality work as specifically indicated in the Contract Documents. 1. Workmanship and details of structural steel work, shall conform to the California Building Code, and the AISC Specification for Structural Steel Building. 2. The quality of materials and the fabrication of all welded connections shall conform to the American Welding Society, AWS D1.1 - Structural Welding Code. 3. Comply with Section 10 of AISC "Code of Standard Practice for Steel Buildings and Bridges" for architecturally exposed structural steel. G. Qualifications of suppliers and personnel: 1. The steel fabricator shall have not less than five years continuous experience in the fabrication of structural steel. 2. The steel erector shall have not less than five years continuous experience in the erection of structural steel. 3. All welding shall be performed by operators who are qualified as prescribed in "Qualification Procedure" of AWS D1.1 of the American Welding Society. Welding shall be performed only under Fire Marshal permit as required by local jurisdiction. H. Codes and Standards: In addition to complying with 2010 California Building Code (CBC) as adopted by the Division of the State Architect (DSA), comply with: 1. "Steel Construction Manual" of the American Institute of Steel Construction, 13th edition. 2. AISC 360: "Specification for Structural Steel Buildings" of the American Institute of Steel Construction, current edition. 3. AISC 303: "Code of Standard Practice for Structural Steel Buildings and Bridges" by the American Institute of Steel Construction, current edition. 4. ANSI/AWS D1.1/D1.1 M: "Structural Welding Code -Steel" of the American Welding Society, current edition. 5. "Specification for Structural Joints using ASTM A325 or A490 Bolts" approved by Research Council on Structural Connections (RCSC). 6. UL (FRD) - Fire Resistance Directory; Underwriters Laboratories Inc. 2