Anchor bolts inspection

I xtemal inspection criteria are provided by these standards for foundation and supports, anchor bolts, concrete or steel supports, guy wires, nozzles, sprinklers pipe hangers, . rouiuling coiiiiee(ions, protective coatings, insulation, and external metal surfaces. 

ASTM], American Petroleum Institute [API], NFPA, Factory Mutual [FM], American Society of Mechanical Engineers [ASME], American National Standards Institute [ANSI], Cl, EC), including non-equipment items such as criteria for inspection of foundations and supports, anchor bolts, pipe hangers, guy wires, grounding connections, nozzles and sprinklers, insulation, protective coatings, external surfaces of vessels, insulation, etc. 

The applicable codes and standards provide criteria for external inspections for such items as foundation and supports, anchor bolts, concrete or steel supports, guy wires, nozzles and sprinklers, pipe hangers, grounding connections, protective coatings and insulation, and external metal surfaces of piping and vessels, etc. These codes and standards also provide information on methodologies for internal inspection, and a frequency formula based on the corrosion rate of the materials of construction. Also, erosion both internal and external needs to be considered along with corrosion effects for piping and valves. Where... 

A skirt is die most frequently used and most satis-faaory means of suppon for vertical vessels. It is attached by continuous welding to the bottom head of the vessel and is furnished with a base ring, which is secured to a concrete foundation or structural frame by means of anchor bolts. In most cases, the skirt is straight, but on tali, small-diameter towers, the skin could be flared. Access openings are required in vessel skirts for inspection and, when possible, should be oriented toward the main access way. Eidiibit 10-18 shows a typical skin arrangement. 

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