Fig. 6

Star diagram for Whaam! (on the left)—comparison between swab-applied buffered waters and aqueous solution with TAC at a concentration of 0.5% w/w, for discreet areas of the alkyd priming. The image shows cleaning tests with a TAC 0.5% w/w; b citrate buffered water pH 5.5; c citrate buffered water pH 6; d MES buffered water pH 5.5; e MES buffered water pH 6; and f MES buffered water pH 6.5