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BOS 759: 2018


Standard for repair of shop-fabricated aboveground tanks for storage of flammable and combustible liquids – Code of practice

SKU: BOS 759: 2018 Category: Product ID: 27960

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Technical Committee

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1.1 This standard covers the repair and modification of an atmospheric-type shop-fabricated carbon and stainless steel tanks. It applies to tanks storing stable, flammable and combustible liquids at atmospheric pressure with a specific gravity not greater than 1.0.
1.2 This standard covers repair and/or modification of a tank built to a nationally recognized standard for aboveground storage tanks. It may be used for the repair and modification of other tanks at the discretion of the tank owner noting owner’s responsibilities below. The current edition of the construction standard, to which the tank was built, will be consulted for minimum construction requirements not otherwise covered in this standard.
1.3 The scope is limited to the top and bottom of the tank, the tank supports, inner and outer shells, nozzles to the face of the first flange, the first threaded joint, or the first welded end connections. Other accessories, such as stairs or items that are attached to the tank, are not included.
1.4 This standard does not cover repairs to riveted or bolted tanks. It also does not cover the repair or modification of an underground tank to be used aboveground. This standard does not cover insulation repair.
1.5 The owner is responsible for complying with the provisions of this standard, in addition to compliance with fire codes, local ordinances, and other applicable rules and regulations. The owner may want to retain assistance from specialists to aid in regulatory compliance, safe operations and installations in accordance with recognized industry standards. The owner should verify that persons working on tanks understand and address the hazards associated with the contents as well as procedures associated with those tanks.
1.6 The repair or modification of a tank may affect the Listing status of the tank. This standard does not address the Listing status of a tank. Contact the original Listing organization for more information.
1.7 The repair or modification of a tank may affect the warranty status of the tank and associated equipment. Contact the original manufacturer for more information. 1.8 This Standard is intended for use by organizations and/or individuals who are knowledgeable and experienced in aboveground tank fabrication, repair, modification and inspection.
1.8 This Standard is intended for use by organizations and/or individuals who are knowledgeable and experienced in aboveground tank fabrication, repair, modification and inspection.
1.9 All repairs and modifications should be in accordance with good engineering practice.

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