It is rare; I can not recall ever disputing NFPA in any of their guides/standards/codes. However, section 27.7 of NFPA 30 is worded incorrectly and needs to be called out as it poses significant risks if followed by the letter. Section 27.7 covers the pressure and leak testing of “flammable liquid” piping circuits. Although I am thankful for NFPA including this in NFPA 30, some users who may not know better may place their people or contractors in harm’s way. Here is the issue:
NOTE: This requirement goes back ever since NFPA 30 included this pipe testing requirement