ANSI Z83.9
For ANSI Z83.9, standard title is Gas-Fired Duct Furnaces; status is no longer recognized, recorded from its source on 2026-08-10.
- Test standard
- ANSI Z83.9 verified
- Standard title
- Gas-Fired Duct Furnaces verified
- Status
- no longer recognized our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
ANSI Z83.9 | Gas-Fired Duct Furnaces |
— osha.gov, retrieved 2026-08-10
Source
- osha.govhttps://www.osha.gov/nationally-recognized-testing-laboratory-program/standards-no-longer-recognized