Specifications include, but are not limited to: 3.01. Structural Materials 3.01.01. All structural plate material shall be supplied to ASTM A6 and shall be mill certified to meet ASTM A370 Charpy V-notch impact values of 15ft-lbs at -20º F on a heat lot basis. Test sample location and values for subsize specimens shall be in accordance with ASTM A673 3.02. Structural Steel. 3.02.01. All structural steel shall conform to ASTM A36, A572, A588, or A871 3.02.02. No steel plate material used in the fabrication of the steel pole, except the base plate/flange plate, shall contain more than 0.06% silicon per heat analysis unless approved by owner. This requirement is applicable to A572 steel with the steel thickness less than 1.25 inches. 3.02.03. The steel plate subject to through thickness tensile loads shall be free of unacceptable laminations as described in 10.7 of this specification. All steel plates over 1-1/4” thickness shall be ultrasonically tested in accordance with “ASTM A435 Standard Specification for Straight Beam Ultrasonic Examination of Steel Plates” to assure against internal discontinuities. 3.02.04. All HSS shall be ASTM A500 Gr. B.