API Std 650 aboveground welded storage tanks standards

The API Std 650 standard published by the American Petroleum Institute (API) is designed to provide the petroleum industry with welded steel tanks for use in the API Std 650 aboveground welded storage tanks storage of petroleum products and other liquid products commonly handled and stored by the various branches of the petroleum industry.

The Field-assembled storage tanks manufacturer shall determine that each magnetic-particle examiner meets the following requirements:a)The examiner has vision with correction, if necessary, to be able to read a Jaeger-Type No. 2 Standard Chart at a distance of not less than 12 in. and is capable of distinguishing and differentiating contrast between colors used. These requirements shall be checked annually.b)The examiner is competent in the techniques of the magnetic-particle examination method for which the API Std 650 aboveground welded storage tanks examiner is certified, including making the examinations and interpreting and evaluating the results; however, where the examination method consists of more than one operation, the examiner may be certified as being qualified only for one or more of these operations.

Anti corrosion of API Std 650 aboveground welded storage tanks:
After using for a certain period of time, it is necessary to check the corrosion protection of the API Std 650 aboveground welded storage tanks. If necessary, the outer wall of the metal oil tank should be painted with new anti-corrosion paint to ensure that the outer wall of the API Std 650 aboveground welded storage tanks does not fall off and has good waterproof and rust resistance.
API Std 650 aboveground welded storage tanks cleaning:
The long-term use of API Std 650 aboveground welded storage tanks will produce impurities on the tank wall and deposit on the tank bottom, resulting in tank corrosion to leakage. According to the safety standard of oil tank, the API Std 650 aboveground welded storage tanks shall be cleaned and derusted regularly to ensure the quality of oil stored and the safety of oil tank equipment.

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