Various International Standards

Need to ask about the difference between the standards:
AISI, SAE, ASME, ASTM and ISO.

Being more specific about the discussion, would like to say anyone if having any information regarding the same please, share here.

Points of focus:
1. How are these STANDARDS interlinked? Are they really?
2. What are the basis of the selection of any standard in a company?
3. About which things/specifications, like materials property, grade etc they are used?

Anyone who can share the knowledge is welcomed.

Even you can share about any other standard or points which can help us understand them more effectively and efficiently.

Thanks.
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