... order to determine designated physical, chemical, and biological characteristics; preparing ... ; biochemical oxygen demand (BOD); chemical oxygen demand (COD); total residual ... assists in increasing or decreasing chemical agents; assists with composing daily ...
4 months ago
... , dirt, gaseous fumes, cleaning solvents, chemicals, oils, and grease. Exposed to ... cuts, bruises, strains, broken bones, chemical burns, and other injuries. Uses ...
a month ago