CHAPTER IX 

 RESULTS OF PITTSBURG TESTS 



THE First Annual Inspection of the Pittsburg Test Fence 

 took place during May, 1909, a little over one year after the 

 painted panels had been placed in position. The inspectors 

 found that in Pittsburg a heavy deposit of soot had formed on 

 the panels, and they considered it therefore inadvisable to make 

 a detailed report of the inspection until the second year of the 

 exposure. The general results of the Pittsburg inspection as 

 reported by the three committees 1 having supervision over the 

 work, is, however, given herewith. 



During the inspection of the Pittsburg tests it was decided 

 to condemn the lithopone panels on the fence, which consisted 



Pittsburg Test Fence 



of formulas 21 to 27, including panels 151 to 164 in white, 131 

 to 144 in yellow, 109 to 122 in gray. Almost complete failure 

 had taken place in every case where lithopone had been used. 

 These lithopone tests were later on replaced by new tests which 

 are described later in this book. 



" Wood Most Valuable for Test. As on the Atlantic City 

 Fence, the white pine panels afforded the best results and gives 

 the best indication of the comparative wearing of the paints and 

 affords no unfair condition, such as other woods might offer, to 

 interfere with the test. 



1 J. H. James, Chairman Test Fence Committee, Carnegie Technical 

 Schools. 



A. C. Rapp, Chairman Fence Committee, Pittsburg Branch Pennsylvania 

 State Association of Master Painters. 



R. S. Perry, Director Scientific Section, Paint Manufacturers' Association 

 of the U. S.; H. A. Gardner, Asst. Director. 



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