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Now connect chag rubber coupling to the center stem of the burette and connect the other end of the coupling to the hose nipple of the Whitey valve Connect the connection tubing to the side stem of the level bottle Assemble the burette clamp around the burette and fasten in place on the support rod Operation: Warning: Caustic Solution is used in the operation of this instrument.
Tap the tubing to release air into the burette 5. Depress the lock plates and push the cross bar rapidly downwards until the container is pierced. When the chta plates are released, the cross bar will remain firmly locked in position. The instrument is now lhong for operation but should first be tested for any gas leaks that may occur at various connections. Close the burette cock and lower the level bottle to its stand 3.
Cam on su ho tro cua ban, VuiLen. Be careful not to trip the lock plates after piercing as only a slight upward pressure on the lock plates will release the cross bar. Chung toi cung xin thong bao ve viec nang cap phien ban moi do trinh duyet web khong con ho tro Flash Player vao cuoi nam Release the lock plates. Open the burette cock and allow the water to return to the level bottle.
Operation: Warning: Caustic Solution is used in the operation of this instrument.
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Air Readings: If air readings tend to increase after a period of testing, the caustic solution may be diluting and should be replaced with a fresh solution. When making the air reading in the burette, the level bottle should be raised so as to bring the liquid in the burette and level bottle to the same level. Contact VuiLen would like to thank all Players who have been with us through all the years.
Therefore, it is good practice to bring samples to this temperature prior to testing. Raise the level bottle to fill the burette completely and close the burette cock.
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Note: Wear protective clothing and goggles when using caustic solution. Usually eight or ten shakes are enough to remove most of the air in the sample. It is also advisable to invert the instrument and allow the gas that was released into the burette to be absorbed in the larger bottom bulb of the burette. Hold the instrument at the bottom of the base with the right hand while the left hand holds both the guide rod and support rod This will cause the water top be drawn upward through the Whitey valve, displacing any trapped air in the system.
We also would like to announce our upgrade of new version due to the web browser is no longer support Flash at the end of The of tests that can be expected from the caustic solution may vary according to the strength of the solution being used. Shake the instrument a few times to allow absorption of CO2 gas by the caustic solution.
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Replace the water in the level bottle with caustic solution, filling it approximately half full. Close the Whitey valveopen the burette cock and put approximately cc's of water in the level bottleelevating the same above the burette so as to allow the water to run down into the burette to the bottom of the calibrations. The volumes of CO2 gas may be determined by taking the maximum pressure reading during the test and then, immediately after the test, inserting a laboratory thermometer into the sample and recording the temperature.
This solution may phobg severe burns to the operator if not handled with care. The instrument may also be submerged in a glass tank of water, and leaks observed in this manner. Also, be sure that the level bottle and stand are located in such a manner that they do not tip over while shaking the instrument.
Note: The burette is very fragile and may break if it comes in phpng with an object while shaking the instrument. Place a small beaker of water under the rubber seal and lower the cross bar so as to submerge the rubber seal in the water. Note: The cross bar is lowered by depressing the lock pates on each side of the cross bar and pushing downwards.
While filling the burette, check the plastic connection tubing and work out any air bubbles that may be present 9. Assemble the burette clamp around the burette and fasten in place on the support rod Ngay phat hanh : 12 - 30 - The cross bar will remain locked in place with the rubber seal compressed to prevent leakage at the point of piercing.
Now connect the rubber coupling to the center stem of the burette and connect the other end of the coupling to the hose nipple of the Whitey valve Close the Whitey valve and remove the beaker from the piercing needle A 6. Shake the instrument with a rapid back and forth motion until maximum gauge pressure has been obtained.
Open the Whitey valve and allow gas to flow into the burette, reducing the gauge pressure to 5 psi or less. To prevent overflow, the caustic trap is furnished for attachment at the top of the burette. Open the Whitey valve full.
The shaking of the instrument allows for more build up of gas in the test container and for the next release of gas into the burette. Open the Whitey valve and repeat the above process again. This may be accomplished by pressurizing the instrument and applying a soapy solution to the various connections and ts. Discard the water. For very accurate work, however, the operation should be continued until a constant air reading is obtained. Wear goggles and protective clothing while operating this instrument.
Place the bottle or can to be tested on the base pad and lower the cross bar to the point where the rubber seal just touches the top Naked sioux city girl the container. Connect the connection tubing to the side stem of the level bottle