Table 2.

FDA Knowledge: J&J Disclosed Tests on Shower to Shower as Presented to FDA and Discussed September 21st, 1972. ⁵⁶

Year	Consultant	Tested	Method	Results
1972	Fred Pooley, J&J consultant, a professor in the Department of Mineral Exploitation at the University College Cardiff56	Val Chisone Talc (source for Shower to Shower)	Various	Reported no evidence of chrysotile; Pooley found tremolite fibers, but J&J did not report this to FDA
1972	Dr. W. T. Caneer, The Colorado School of Mines56	Shower to Shower	Step scanning XRD	No chrysotile; LOD 1%
1972	Professor Gordon Brown, Department of Geology of Princeton University56	Shower to Shower	Step scanning XRD	No chrysotile; LOD 1%
1972	Walter McCrone56	Shower to Shower	“Optical staining” techniques	None detected: LOD 1% The report found 0.2-0.5% tremolite, but this report was replaced by another version that reported finding “only a few isolated crystals” (see Figure 1and 2).57
1972	Jack Sheltz56	Shower to Shower	Differential thermal analysis	None detected; LOD 1%

Note. LOD = Level of Detection; FDA= Food and Drug Administration; XRD = X-ray diffraction.