Brass Fittings - Metallic composition of fittings
This is one of two reports on Stage 2 of ongoing research to increase understanding of how brass fittings contribute to lead and nickel concentrations in drinking water. It examines the alloy composition of brass taps, connectors, stop taps, meters and ferrules, including some low lead models, using X-Ray Fluorescence (XRF) Spectroscopy and wet chemistry. XRF Spectroscopy is shown to compare favourably with wet chemistry analysis, offering a non-destructive means for screening brass fitting composition. The observed alloy compositions are compared with the composition of alloys currently included in the 4MS Composition List, but few matches were found. The relationship between lead and nickel yields after 16-hour stagnations and the alloy compositions of brass fittings is examined. The report also covers an exercise to examine leaching of other metals of interest, including copper, zinc and iron, from a range of brass fittings deployed on long term test rigs.
|UKWIR Reference :- 15/DW/04/17||Published Date :- 25/11/2015|
|Retail Price (£) :- 150||ISBN :- 1 84057 799 1|