Methodology · finding

NSF/ANSI 62 exists, and nothing holds it

NSF/ANSI 62 is a current standard with a category in NSF's own search and no products listed under it.

updated 2026-09-21
methodology

Nothing. NSF lists a distillation category in its own standard dropdown and returns zero rows for it. WQA has no 62 among the nineteen standard ids it offers. IAPMO's censused certificate set contains no 62 certificate.

Offered and empty is not the same as not offered, and neither is the same as no such product existing. The standard is real and current, the category is present in NSF's own interface, and Home Depot sells distillers. They are simply all uncertified.

Every distiller sold to a consumer today is uncertified against the standard written for distillers. That is a statement about the whole category, which is why it needs the complete enumeration behind it rather than a search.

Nobody else states it, and it is checkable in one request against NSF's own listing page.

What is certified here, and under what, as of 2026-09-21
ItemDetail
Certified products0
Under which standardsNothing. NSF lists a distillation category in its own standard dropdown and returns zero rows for it. WQA has no 62 among the nineteen standard ids it offers. IAPMO's censused certificate set contains no 62 certificate.

How we can say this about a whole category

A claim about every product in a category cannot rest on a search. Searching for something and not finding it establishes that the search found nothing, which is a different fact — and we have published a retraction over getting exactly that wrong. So this rests on the complete set of all three certifiers, enumerated by routes that bypass every keyword search.

  • NSF. Complete listing set per standard via Listings.asp with an empty trade name. 12 requests, 12,086 rows.
  • WQA. Complete set by probing standard ids 0-200; 19 answered. 9,205 listings. An earlier pass browsed nine hardcoded ids and missed 3,245 listings including all of NSF/ANSI 401 — see docs/certifier-index-gaps.md.
  • IAPMO. Census of certificate ids 1-46,000. 45,999 read, none left unread, 7,395 live certificates, 92,412 model numbers scanned.

Read 2026-09-21. Recorded at verified_absent, the only strength at which this site states an absence: every certifier's complete set enumerated, and the product not in it. Anything weaker is recorded as a fact about our search rather than about the product.


Corrections are welcome and we will publish them, as we have before. Contact.