Short answer: Weekly activation and an annual inspection are the two obligations ANSI/ISEA Z358.1-2014 sets explicitly. Everything between them - monthly strainer checks, quarterly temperature verification, post-incident servicing - is what makes those two obligations provable.
| Frequency | Task | Record |
|---|---|---|
| Daily | Visual check: unit visible, path clear, no leaks, no standing water | Exception only |
| Weekly | Activate for 2 minutes: valve opens hands-free in 1 second, both outlets flow evenly, water runs clear, drains away | Signed entry with observation |
| Monthly | Clean strainers and spray heads; check for scale, sediment and corrosion; verify signage and lighting | Signed entry |
| Quarterly | Measure outlet temperature and flow; check tempering valve response; inspect trace heating where fitted | Measured values |
| Annually | Full inspection: flow, spray pattern height, valve condition, pipework, drainage, documentation review | Inspection report |
| After any use | Flush, inspect for damage, replace any contaminated fluid, return to service and record | Incident-linked entry |
Self-contained units carry a heavier routine because the fluid is stored rather than supplied. Add: a tank level check on the same rhythm as the weekly activation, a fluid change on the manufacturer's interval, and a full drain-and-disinfect cycle at least annually. If the unit holds a preservative-treated solution, record the batch and the change date.
A tick in a box proves someone held a pen. An entry that survives scrutiny records four things: the date and time, who did it, what was observed (including the numbers), and what was done about anything abnormal.
A practical format:
2026-11-10 08:15 - J. Miller - Unit 3, Building B. Valve opened hands-free, approx. 1 s. Both heads flowing evenly, water clear. Outlet temp 22 C. Drain clear, no pooling. No action required.
That single line answers every question an auditor will ask about that week. A column of ticks answers none of them.
When an inspection finds a fault, the record needs three parts: the fault as found, the immediate containment (unit tagged out, temporary unit provided), and the repair with the date it returned to service. Auditors accept a documented fault; they do not accept a gap with no explanation.
A trained employee on site. The training itself should be recorded - competence is part of the evidence.
No, but the record must be retrievable for the period your auditor or insurer requires, and it must be attributable to a person and a date. Digital logs with timestamps are usually stronger evidence than paper.
That is the normal case, and it is exactly why the schedule exists. Stagnant water, seized valves and blocked strainers are found on units that have never been used, not on busy ones.
Follow your local requirement or your insurer's condition. Two years is a common practical minimum; some regulated sites retain for much longer.
Yes, and it is often the better answer for multi-site operators, provided the contractor's report contains measured values rather than a compliance certificate.
The schedule above maps directly onto a single log sheet per unit. If you are setting one up, start with the weekly entry format and build outward - the weekly line is the one that carries the most audit weight.
For units on order, our eyewash station range ships with a maintenance schedule matched to the model, and our team can advise on the spare parts worth holding - strainers, spray heads and valve seats cover most failures.
Sources: ANSI/ISEA Z358.1-2014 weekly activation and annual inspection requirements; CCOHS emergency shower maintenance guidance.