prov:value
| - The electrodes 206 may be comprised of any suitable material, such as platinum or platinum-iridium (such as manufactured by Johnson-Mathey, Wayne, Pa.), or non-iron-containing metals, such as alloys or quaternary alloys such as MP35N having a nominal composition of Nickel 35%, Cobalt 35%, Chromium 20%, Molybdenum 10%, (such as manufactured by Fort Wayne Metals, Fort Wayne, Ind.).
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