All our goliath calibrated plates are made to exacting standards within 10g or less of claimed weight. The plates have calibrated plugs to ensure accuracy.
We have made these plates to international powerlifting specifications but at a price that you won't feel bad letting your members use day in and day out.
For the high performers it also allows bars to be loaded very accurately. Cheaper non-calibrated plates when loaded in multiples can lead to significant load imbalances especially when 5+ plates are loaded each sleeve.