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Lifting the water surface
Bend the pointed end of a pin or use a piece of fine wire to make a hook. File the point of the hook unless it is very sharp. Put your eye on a level with the surface of the water in a drinking glass. Put the hook under the surface of the water and gently increase the point to the surface. If you are cautious the point will not penetrate the surface film but will lift it slightly upwards.
Procedure: Take any appliance1 equipment in the laboratory e-g., the oven, electric heater, sodium lamp, immersion rod, the vacuum pump, autoclave, heating mantle, refrigerator, i
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For the model of Fall River and Butte Creek in HEC-RAS, (a) Output the cross-section of all three flood events for station 9.8 on one figure. Include only the water surface and
Laboratory Safety Codes: BIS has prepared the following three codes (in the form of small books) regarding laboratory safety: i) Code of safety in microbiological laboratories
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