002-2 TAO Mast Specification.docx

NDBC STANDARD SPECIFICATION FOR FABRICATION OF BUOY MAST USED IN THE TROPICAL ATMOSPHERE OCEAN (TAO) ARRAY

1.0 SCOPE

1.1 General. This specification describes the requirements for the fabrication of buoy mast used in the Tropical Atmosphere Ocean (TAO) array. The contractor shall provide all the necessary labor, material, equipment, facilities and services to fabricate and deliver the buoy towers to the National Data Buoy Center (NDBC).

1.2 Precedence. Any ambiguity or conflict between this specification and other applicable documents shall be resolved by the following order of precedence:

2.0 APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are referenced in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification, which are recommended for additional information or used as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements cited in sections 3 and 4 of this specification, whether or not the referenced documents are listed here.

2.2 Industry Publications. The following documents of the issues specified form a part of this specification to the extent referenced herein. Suffixes denoting the specific issue of each document will be omitted from future references to the document in this specification.

2.3 Drawings. The following NDBC drawings form a part of this specification to the extent referenced herein and shall be referred to as "the drawings" throughout this specification:

3.0 REQUIREMENTS

The mast shall be fabricated from of 6061-T6 Aluminum. All aluminum welding shall be in accordance with AWS Dl.2.

The overall height of the mast shall be less than or equal to 89.5 inches.

4.0 QUALITY ASSURANCE

4.1 Welding Procedures and Qualifications. The contractor shall submit welding procedures and welder qualifications that conform with AWS D 1.2 prior to fabrication of the mast.

4.2 Material Certifications. The contractor shall provide vendor supplied material certifications for all materials used in the construction of the mast

4.3 First Article. The contractor shall produce and deliver a first article of the mast for inspection prior to commencing fabrication of the remainder of the articles. This requirement may be waived at the contracting officer’s discretion if the contractor has successfully completed a TAO buoy mast contract in the past.

5.0 DELIVERABLES

All deliverables shall be shipped to the following address:

National Data Buoy Center Attn: Property Officer Building 3203 Stennis Space Center, MS 39529