QQI Test Pieces: 

#519630 - Standard QQI, Model KSC-230, Self adhesive, flaw depth of 30% of shim thickness .002" thick. (a) 

#521048 - Standard QQI, Model KSC-430, Flaw depth 30% of shim thickness .004" thick. (a) 

#519631 - Miniature QQI, Model KSC-4-230, Four circles per sheet, flaw depth 30% of shim thickness .002" thick. (b) 

#519632 - Variable Depth QQI, Model KSCT-234, Self adhesive, flaws 20%, 30% & 40% of shim thickness .002" thick. (c) 

#521049 - Variable Depth QQI, Model KSC-4-234, Flaw depth 20%, 30% & 40% of shim thickness .004" thick. (c)