A rapid method for determining the calcium contents of lead-calcium alloys has been developed. It is based on the quantitative removal of calcium by interaction with antimony and an end-point shown by the surface appearance of test ingots. The method is applicable to lead alloys containing fl-om 0.005% up to at least 2% calcium and in the range up to 0.11% calcium has a precision of • It may be used in the shop, does not require skilled personnel for its operation, and has been successfully applied in the commercial manufacture of storage battery grids. unless CC License in place (see abstract). ) ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 141.211.4.224 Downloaded on 2015-06-25 to IP
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