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CORROSION TESTING OF FRICTION BOLTS                                                          Page 3 of 3

The specimens were randomly placed in the test cabinet in the order shown in Table III to avoid any systematic error due to variations in the test conditions in different parts of the salt-spray cabinet.  The bolt-plate sets were supported on plastic racks at an angle of approximately 30 from the horizontal.

Table III: Test Order
TEST BOLT & PLATE
6 Galvanized, installed
2 Galvanized, new
7 Steel
4 Galvanized, installed
8 Steel
1 Galvanized, new
5 Galvanized, installed
3 Galvanize, new
9 Steel

The initial weight and weight loss as a percentage of the initial weight is shown in Table IV for each specimen.

Table IV: Weight and Weight Loss
TEST BOLT WT. LOSS PLATE WT. LOSS
    g %   g %
1 Gal. new 953 1.26 Galvan. 519 0.77
2 Gal. new 784 1.40 Galvan. 522 0.57
3 Gal. new 793 1.13 Galvan. 524 0.57
      1.26     0.64
4 Gal. install 918 0.87 Steel 522 0.57
5 Gal. install 779 1.16 Steel 522 0.38
6 Gal. install 767 1.43 Steel 520 1.15
      1.15     0.70
7 Steel 780 2.56 Steel 729 2.06
8 Steel 776 2.71 Steel 732 2.05
9 Steel 764 1.96 Steel 729 1.51
      2.41     1.87

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