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During a building corrosion control study, bottles containing acid‐preserved water samples with high levels of lead often had particulate material on the bottom. Scanning electron microscope analysis of the particles showed the presence of tin and the absence of lead, indicating the probable source of lead to be lead–tin solder. A leaching study was done to investigate the effectiveness of the standard 0.15 percent nitric acid preservation procedure for dissolving lead corrosion by‐products. Results indicate that the technique was adequate for dissolving lead from lead–tin solder particles but not for tin.
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Lytle et al. (1993) studied this question.
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