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Chemetco produced high-purity cathodes using electrolysis. This electrolytic process used large amounts of sulfuric acid and according to the Agency for Toxic Substances and Disease Registry (ATSDR) would at times "…reportedly release a visible "acid mist" drifting onto nearby farm fields." [2]
The Tetrazolium Chloride (TZ) test, often called the quick germination test, is a chemical test used to determine seed viability, and results are usually available within 24 to 48 hours The TZ test differs from a germination test in that the TZ test can give you an early and quick snapshot of seed viability but is not a replacement for the more comprehensive seed germination test.
The touchstone allowed anyone to easily and quickly determine the purity of a metal sample. This, in turn, led to the widespread adoption of gold as a standard of exchange. Although mixing gold with less expensive materials was common in coinage, using a touchstone one could easily determine the quantity of gold in the coin, and thereby ...
A purity test is a self-graded survey assessing one's participation in vices. Purity test may also refer to: Purity test (politics), a standard used to determine in-group and out-group; Metallurgical assay, the process of testing the purity of a metal
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Pure substances; essentially pure chemicals, characterised for chemical purity and/or trace impurities. Standard solutions and gas mixtures, often prepared gravimetrically from pure substances. Matrix reference materials, characterised for the composition of specified major, minor or trace chemical constituents.
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An automated sampling station installed along the East Branch Milwaukee River, New Fane, Wisconsin. The cover of the 24-bottle autosampler (center) is partially raised, showing the sample bottles inside. The autosampler collects samples at time intervals, or proportionate to flow over a specified period. The data logger (white cabinet) records ...