The State facility I work at has 10 lbs extinguishers. I check and record each one at the first of each month. The hydrostatic test is required every 6 years. In the past we had a local company complete the tests and repair as required, now it is cheaper to just replace the extinguishers. Our Fire Chief told me to just use the old extinguishers for fire training, he said it's just a date, as long as it still has pressure it will work. His way of looking at it is" Even an out of date extinguisher is better than no extinguisher.
I have 2 10 lbs extinguishers in my shop.
