Open the chemical fume hood sash to simulate actual operation. Position laboratory equipment as close as possible to where it will be used. 2. Place the shallow bowl approximately 15 cm into the chemical fume hood and in the center of the sash opening. 3. Add 1 L of the warm water to the bowl. 4. Add the dry ice pellets to the water. 5.
Wide Opening Sampling Reagent Bottle for Tobacco NUK
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