Table 3
Linear ity of the hazardous metals according to different migrant solution

Parameter	Distilled water	Citric acid solution (0.5%)	NaCl solution (1%)
Pb	>0.9999	>0.9999	>0.9999
As	>0.9999	>0.9999	>0.9999
Cd	>0.9999	>0.9999	>0.9999
Ni	>0.9999	>0.9999	>0.9999
Al	>0.9998	>0.9998	>0.9999