How often must an emergency shower be tested?
ANSI/ISEA Z358.1 sets clear expectations for keeping emergency showers and eyewash stations ready. Here's what the standard requires — and how automated monitoring makes it painless.
Weekly activation
ANSI/ISEA Z358.1 calls for plumbed emergency showers and eyewash equipment to be activated weekly to verify they function and to clear the supply line of stagnant fluid. The check confirms flow is present and the unit operates on demand.
Annual inspection
In addition to the weekly activation, the standard calls for a full inspection at least once a year to confirm the unit still meets the flow, duration, pattern and temperature requirements.
Why the weekly test is a hassle with conventional units
On a normal self-contained unit, running the weekly test means using flushing fluid that then has to be topped up, and someone has to be on site to do it and record it. Miss a week and you have no proof the unit was ready.
How Mahikan automates it
Mahikan units run an automated weekly self-function test using a proprietary recirculation loop that circulates flushing fluid against the valves and through a filter — so you're not draining and refilling the tank. The onboard PLC logs the time, date, water temperature and circulation times, and we can provide reports as documented proof of compliance.
Want documented weekly testing?
Ask about Mahikan's automated function test and compliance reports.