Hi Sandra, we use a company called Clever First Aid, it is an automated cloud based system that works on its own wifi and automatically resupply stock and send expired stock just to replace and they keep track for your company of it. They managing and monitoring first aid compliance for you in a nutshell basically. Making admin less and ensure compliance in realtime.(as WPS manager keep track as its realtime you can see every first aid injury happening can choose to have the camera on/off, each item have a barcode eg burns, stf, eye, cut.....) Keeping statistically data etc. Currently 170 stores of ours in NZ use it, Australia have incorporated it now, Air NZ also making use of their services. They are very clever, also have other services eg AED, Eye wash stations, Spill kits etc.

Hi Sandra
NZ Safety Blackwoods sell a kit for testing safety showers.
https://nzsafetyblackwoods.co.nz/en/safety-shower-testing-kit-each-419879

I was pretty sure there was something for the eye ash bath as well.

Thank you John, we already use the shoot and bucket

Hi Sandra
I too work where there are a number of emergency showers and eyewash stations.
There's no easy way of testing the operation of these when they are permanent fixtures.

The flow rate you mentioned is metric conversion from the American standard - ANSI/ISEA Z358.1 - as will be all measurements. See page 4 here

This publication contains check sheets on pages 8, 9 and 10 depending on what you require.

Page 8 and 10 show the water pattern at 1524mm as well as the spread and distance from walls. Like you, I currently have no tidy method of testing this.
So far as delivery for 1 minute goes, calculating the quantity over a set time may be one option (and IMHO) for testing it is practical, as storing 300 gallons of water over a 15 minute period may prove to be logistically challenging.

While the mechanical aspects are easy enough to measure, chat with your plumber regarding the size and type of pipes feeding the shower or eyewash plus the actual pressure so calculations are accurate.

Some of our showers are not hands free stay open. There is a balance for us to meet between available funding and ensuring compliance.
One option we are considering is portable showers along the lines of outside decontamination units. There are certain advantages such as when relocating when rooms are redesignated, privacy when disrobing and easier maintenance and testing.

Testing.
Did you know maintenance or inspections are at least weekly? I recall - though cannot remember from where - one reason for this is so any rubber washers don't dry out and attach themselves to the pipe wall. It's a pain when the shower drips after testing or worse still, jambs and doesn't work.

Annual certification
Yes, a pain but effectively it's only to ensure the shower or eyewash work and any audible alarms sound. Nothing else. This is (IMHO) definitely just a tick box exercise.

https://forum.safeguard.co.nz/discussion/529/annual-test-of-safety-showers-and-eye-wash

When I worked for a major chemical company in USA, we were required to test all safety showers and eyewash fountains every Monday morning between 8am - 8:10am. These checks ensured we could verify that the alarms connected to the emergency equipment were working, as well as verifying that showers and eyewash fountains would be activated as intended, had sufficient flow, and didn't have any rust or other particulate matter in the water, thus enabling us to proactively identify any issues and notify the maintenance team if safety equipment needed work.

Thank you all.