There are many training organizations which teach visual inspections of tanks and cylinders. Some organizations bend the truth to push their product or services. Here we have listed some facts from the government regulations.
Why cylinder inspections are necessary and the proper visual inspection training programs
Why is it important to take formalized inspection training? Many people have an idea of what corrosion may look like, or when it becomes a danger. Formal training gives the inspector a baseline and rules to guide a proper inspection process
a simple description of the rules and regulations governing cylinder visual inspections. When to take the cylinder for inspection. Recommendation versus actual regulations