This item is usually Drop Shipped from the MFR/Distributor within 7-10 days (subject to availability). Your order will be charged at the time of placing the order with the vendor. Item is non-cancelable or returnable.
The Clayton Hypo Test is a simple chemical test that can be used to check your fixer/hypo solution for exhaustion due to silver saturation.
One or two drops will test the fixer and, if the fixers still OK, no harm has been done to the bath.
If the addition of the hypo test produces a cloudy precipitate, the bath is exhausted and the fixer should be discarded.