Table 1

Percentage of sample surface area at different liner thickness cutoffs. The percentages are averages of three technical replicates. Samples were taken from Locations 1 to 5 as shown in Figure 1. X1, Y2, Z2: X, Y, and Z signify the can manufacturer; 1 and 2 signify the liner type (BPA epoxy and BPA-NI epoxy, respectively). For two of the can sources, multiple production batches (n = 2 or 3) were tested to evaluate batch-to-batch variation (e.g., Y2-3 indicates the third batch of BPA-NI epoxy cans from manufacturer Y).