Bureau of Labor Statistics. Overview: The Bureau of Labor Statistics (BLS) is one of eight specialized divisions within the Department of Labor, and a direct descendent of the original Bureau of Labor, Department of the Interior, established in 1884. (Todayâs Department of Labor was established as a cabinet-level agency in 1913).
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Freezing point means crystallization with a release of heat of fusion as it is a first order thermodynamic transformation. If you look at all materials that freeze around room temperature, every one is different. To have a single freezing point, it will have to be a pure material. There are solutions with invariant points but I know of none at zero C.