This looks like parents evening & Mr Cowell is smugly telling Mum & Dad that their precious little glue-sniffer is gonna fail year 9 chemistry

Some years ago, we read in a U.S. trade paper a method for determining causticity of bottle-washing solution when foil labels are contained on the bottles undergoing cleansing treatment.

Radiographs and scintigraph images were taken using CT and SPECT subsystems, respectively, with a 1 mCi 57 Co point source in the SPECT FOV and the CT kVp varied from 60 to 80 kVp.

Understand the problem before fixing it. About the only scenario where shotgunning is useful is if there is a shorted IC and you cannot tell which one it is.