API Std 650 austenitic stainless steel storage tanks requirement

Suggested Practice Regarding Installation of Low-pressure storage tanks
Access: All openings and accessories for tanks API Std 650 austenitic stainless steel storage tanks constructed according to this standard shall be installed so that any periodic inspections required can be readily made.
Corrosion: When a tank bottom rests directly on the ground, a survey shall be made to establish the need for cathodic protection.
Drainage: All tanks in which water might accumulate under the hydrocarbon contents shall be provided with adequate drains that are suitably protected from freezing.

This specification, in conjunction with API 650 Standard, prescribes minimum standards for the API Std 650 austenitic stainless steel storage tanks design, supply fabrication, erection, and testing of field erected welded steel storage tanks complete with accessories as specified herein and as shown on attached datasheets and/or drawings.

The main contents of safety inspection for atmospheric storage tank, API Std 650 austenitic stainless steel storage tanks are to see whether the tank foundation is sunk, whether the tank is corroded, whether there are cracks in the tank body and bottom, whether there is concave convex phenomenon on the top and wall of the tank, whether the accessories of the storage tank are in good condition, etc. After the API Std 650 austenitic stainless steel storage tanks safety inspection and detection, the defects found in the tank should be handled according to the inspection rules in time to ensure the normal and safe use of the storage tank in the later stage.