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Portable Network Graphic  |  1991-08-08  |  4.4 KB  |  512x342  |  4-bit (4 colors)
   ocr: - - LT - - The sample has NE been - heated in - - hot water bath for 2-3 centrifuge HC1 minutes with stirring. This will be followed by a quick centrituging. The supernatent liquid, the clear solution over the white precipitate, will be drawn off for testing for the presence of lead ion. Grou Hot Water : Bath.:' Ag Click Here to Continue