Upd - Asme B151 Pdf

It looks like you are looking for a blog post regarding an update to the standard (specifically regarding the PDF version).

The 2019 edition of ASME B151-1 introduces several significant updates and changes, which are summarized below:

ASME standards are revised every 5–7 years. If you are using a PDF from 2012 or 2018, you are technically out of compliance. Recent updates to ASME B151 often include:

These are authorized resellers of ASME standards. They often have better search engines. Search for here. They offer automatic "Alerts" for future updates—so you never need to manually search for updates again.