"Unfortunately, the NIST Guidelines state that they should be used “in conjunction with” two standards of a private Swiss-based standards organization known as ISO that lies behind a paywall that costs $150 for “personal copies” for five years. NIST also cites an additional seven ISO-published standards as relevant to implementing the guidelines. The total bundle comes to $1592—paid in Swiss Francs. Without rational explanation, the price per page of the downloaded files varies between 7.08 and 1.37 Swiss Francs."
Well-said. And it is not just NIST.