CONTAMINATION OF WATER BY DOMESTIC PLUMBING FITTINGS (M2186C) JULY TO DECEMBER 1980
Report No DWI0087

Dec 1980

SUMMARY

  1. Work to determine the relationship between the galvanic corrosion current, measured by the corrosion cell technique, and the total amount of lead oxidised (corroded) is reported.

  2. Further results are presented that support the correlation between the amount of lead contaminating a sample of water, containing a solder/copper couple, and the galvanic corrosion charge generated by that couple.

  3. Results are presented which show that progressively more of the metal being oxidised appears in the liquid as the cumulative charge passed by the couple increases.

  4. The effects of flux residues, silica, phosphates and sulphate on the corrosion of tin/lead soldered joints is reported.
Copies of this report may be available as an Acrobat pdf download under the 'Pre 2000 Reports' heading on the DWI website.