API 653

REVIEW Section 11. API standard 653 covers carbon and low alloy steel tanks built to:

API Standard 650 and its predecessor 12c. 1.1.12. What API Standard always governs for tanks that have been placed in service?

API Standard 653. 1.1.23. API Standard 653 employs the principles of:

API Standard 650. 1.1.34. API Standard 653 may be applied to:

Any steel tank constructed in accordance with a tank specification. 1.1.35. When design and construction details are not given and are not available in the

standard to which the tank was originally constructed, then details that will provide a level of integrity equal to the level provided by the current edition of:

API Standard 650 must be used. 1.1.56. Who has the ultimate responsibility for complying with the provisions of API 653?

Owner / Operator 1.27. If any provisions of API Standard 653 presents a direct or implied conflict with

any statutory regulation, the regulation will govern. In the event that API standard 653 provisions are more stringent than statutory regulations:

API Standard 653 will govern. 1.38. A typical example of an alteration to a tank could be:

The addition of manways and nozzles greater than 12” nominal pipe size. 1.5.1

9. Applicable standard refers to the original standard of construction such as API, UL, etc. unless the original standard of construction has been superseded or withdrawn from publication. In this event, applicable standard means the current edition of the:

Appropriate standard. 1.5.210. Internal pressure in tanks up to but not exceeding 2.5 pounds per square inch

gauge is referred to as: Atmospheric pressure. 1.5.3

11. When an independent organization or individual acts as an authorized inspection agency, who or what provides the controls necessary for use to inspect aboveground storage tanks?

The owner or operator’s inspection program. 1.5.412. The total metal loss divided by the period of time over which the metal loss

occurred is known as: Corrosion Rate. 1.5.7

13. The portion of the bottom sketch plate or annular plate within 3” of the inside edge of the shell measured radially inward is called:

Critical Zone. 1.5.814. The work necessary to reassemble a tank that has been dismantled an relocated to

a new site is referred to as: Reconstruction. 1.5.12

15. Any work necessary to maintain or restore a tank to a condition suitable for safe operation is _________.

Repairs. 1.5.14

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