ANSI B16 or ASME B16 or both?

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Many professional suppliers and manufacturers often talk about ANSI flanges, ANSI fittings, etc. Do a Google search for ANSI B16.5, ANSI B16.9, ANSI B16.10, etc.
In principle, you will not find those standards, because they no longer exist.

For example, many years ago there was an ANSI B16.5 standard. In 1988 the standard became ANSI/ASME B16.5 and in 1996 the standard became ASME B16.5. However, there are still many suppliers and manufacturers that refer to ANSI or ANSI/ASME.

The example B16.5 mentioned above deals with flanges, but there are other standards that have changed in ASME that are still misquoted in documents. Below are some examples from the history of certain ASME standards.

If you've read any of the articles above you will understand that ANSI and ASME work together, but that many standards have been adopted by ASME and are appointed since a long time, as ASME standard.

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