When looking for the next 6 year maintenance or 12 year H-Test where do you calculate from?
The original mfg's date or last time a service was done date? And where is it listed in NFPA 10
If brand new date of manufacture
If in service for awhile, last service date?
There is probably the ideal world, and the true real world.
From the 2018 edition, which you can see on line for free.
220.127.116.11 says manual inspection when initially placed in service
18.104.22.168 says six years from last six year service.
I am thinking a good fire extinguisher company will do the six year, by the manufacture date, or last six year.
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