Table 2.

ICP-OES measurements of silver concentration.

Sample	Mean Standard Error	n samples above 0.002 mg/l detection limit (/total)
Silver ion concentration after 24 hours incubation of silver or silver phosphate glass at 2 mg/ml in water
Control (Water)	NA	0/4
Silver Powder	0.006 ± 0.0016 mg/l	3/4
B65003	26 ± 2.5 mg/l	4/4
Silver ion concentration after 24 hours incubation of polyamide 12 or antibacterial polyamide 12 (containing 1.0% B65003) spheres in 5 ml water
PA2200	NA	0/3
PA2200 + 1.0% B65003	0.056 ± 0.018 mg/l	3/3