Certainly extinguisher training is important if they are going to be used, as I've seen & got video footage of the pitfalls of untrained use & read of examples of the consequences.
As for Powders, well I agree. most of the time crap extinguisher companies or extinguisher needs assessments by H&S persons or others without the right training/knowledge are to blame. On my inspections I carry laminated cards with photos/illustrations of various things to assist in explaining things to occupants & include a photo of the discharge of a 2 kg powder, which soon has the desired effect of changing to CO2.
Some extinguisher companies are ignorant of Class F & Wet Chemical, basing cover on old guidance refering to powder & foam whilst not realising that the guidance was written in the days of FP foam branchpipe extinguishers rather than AFFF spray & standard BC powder, which being alkaline (sodium bicarb) unlike the acidic ABC (ammonium phosphate) now used did have a slight saponification effect
Increasing time on inspections is spent on trading standards/H&S type issues because a large majority of ext firms fall into one or more of the following;
- Don't know how to service an extinguisher properly, so it may fail to function (gauge testing, cartridge weighing anyone)
- Are so out of date that they make mistakes (allowing CO2's to go over 10 years without pressure test as they either don't know it exists or still thin its 20 years)
- Don't know the kit (put pull seals on ext's with breakable OK pins making the pin very difficult to remove)
- Wipe & swipe (rusty base, what rusty base?)
- Sharp practice (too many exts, condemned when no actual fault, replace when require a discharge test as it makes far more money, replace as not EN3 even if perfectly sound and working, etc, etc)
The big national company wasn't based in Elland was it?
