# Dry chemical extinguishers · stainless steel shells · Hydrostatic test · NFPA 10 (2010 ed.) — Fire extinguisher inspection, maintenance and hydrostatic test intervals by agent type

For Dry chemical extinguishers · stainless steel shells · Hydrostatic test · NFPA 10 (2010 ed.), extinguishing agent / type is Dry chemical extinguishers; shell material qualifier is stainless steel shells; service obligation is Hydrostatic test; interval is every 5 years; authority is NFPA 10 (2010 ed.), recorded from its source on 2026-08-19.

- **Extinguishing agent / type:** Dry chemical extinguishers _(verified: appears in the quote below)_
- **Shell material qualifier:** stainless steel shells _(verified: appears in the quote below)_
- **Service obligation:** Hydrostatic test _(our reading, not quoted from the source)_
- **Interval:** every 5 years _(verified: appears in the quote below)_
- **Authority:** NFPA 10 (2010 ed.) _(our reading, not quoted from the source)_
- **Section:** NFPA 10(10), Sec. 8.3.1 and Table 8.3.1 _(verified: appears in the quote below)_

## What the source says

> Hydrostatic testing intervals for fire extinguishers are outlined in NFPA 10(10), Sec. 8.3.1 and Table 8.3.1. Test intervals for some of the most commonly found extinguishers are as follows: o Pressurized water, water mist, carbon dioxide and wet chemical (e.g. K-type) extinguishers – every 5 years o Dry chemical extinguishers with stainless steel shells – every 5 years

## Source

- https://www.health.state.mn.us/facilities/regulation/engineering/docs/lscfireext.pdf

Last verified: 2026-08-19. Review by: 2027-08-19.
Part of [Fire extinguisher inspection, maintenance and hydrostatic test intervals by agent type](https://referencesource.org/fire-extinguisher-inspection-testing-intervals-by-type/).