Select Subcommittee on Labor. then ash to 575Ad C. in a muffle furnace for 2 hours. Cool, wash down the walls of the crucible with 4 to 5 milliliters double distilled water, stir with a platinum spatula to break ... (6) Allow to stand for 40 minutes, mix well, and transfer to matched test tube. ... (3) Add 5 milliliters freshly prepared 7.5 percent solution of ammonium peroxydisulfate (persulfate), boil 3 to 5 minutes, anbsp;...
|Title||:||Federal Metal and Nonmetallic Mine Safety Act|
|Author||:||United States. Congress. House. Committee on Education and Labor. Select Subcommittee on Labor|