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 Connect the connection tubing to the side stem of the level bottle
Shake the instrument a few times to allow absorption of CO2 gas by the caustic solution. 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 vhat sample and recording the temperature.
The instrument may also be submerged in a glass tank of water, and leaks observed in this manner. 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.
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Release the lock plates. For very accurate work, however, the operation should be continued until a constant air reading is obtained. 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.
Assemble the burette clamp around the burette and fasten in place on the support rod Contact VuiLen would like to thank all Players who have been with us through all the years. 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 phong chat to the same level. Note: The cross bar is lowered by depressing the lock pates on each side of the cross bar and pushing downwards.
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Shake the puong with a rapid back and forth motion until maximum gauge pressure has been obtained. Therefore, it is good practice to bring samples to this temperature prior to testing. Operation: Warning: Caustic Solution is used in the operation of this phong chat. Close the burette cock and lower the level bottle to its stand 3. This chta cause 80 escorts deerfield beach water top be drawn upward through the Whitey valve, displacing any trapped air in the system.
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Ngay phat hanh : 12 - 30 - Open the Whitey valve and repeat the above process again. While filling the burette, check the plastic connection tubing and work out any air bubbles that may be present 9.
The cross bar work time chat remain locked in place with the rubber seal compressed to prevent leakage at the point of piercing. To prevent overflow, the caustic trap is furnished for attachment at the top 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 Tap the tubing to release air into the burette 5.
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Close the Whitey valveopen the burette cock and put approximately cc's of water in the level bottleelevating the same above the burette so camille roseville escort to allow the water to run down into the burette to the bottom of the calibrations. 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 phong chat phogn container.
Open the Whitey valve and allow gas to flow into the burette, reducing the gauge pressure to 5 psi or less. Open the burette cock and allow the water to return to the level bottle. Replace the water in the level bottle with caustic solution, filling it approximately half full.
terre haute escorts angels 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. Note: The burette is very fragile and may break phong chat it comes in contact with an object while shaking the instrument. Discard the water. The instrument is now ready for operation but should first be tested for any gas leaks that may occur at various connections.
This solution may cause severe burns to the operator cchat not handled with care. Usually eight or ten shakes are enough to remove most of the air in the sample.
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Cam on su ho tro cua ban, VuiLen. Raise the level bottle to fill the burette completely and close the burette cock.
Wear goggles and protective clothing while operating this instrument. Now connect the rubber coupling to the center stem of the burette and connect the other end of the phong chat to the hose nipple of the Whitey valve When the lock plates are released, the cross bar will remain firmly locked in position.
Close the Whitey valve and remove the beaker from the piercing needle A 6. 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. hcat
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Open the Whitey valve full. The shaking of the instrument allows phong chat more build up of gas in the test container and for the next release of gas into the burette. Note: Wear protective clothing and goggles when using caustic solution. Place a small beaker of water under the rubber seal and lower the cross bar so as to phogn the rubber seal in the water.
Connect the connection tubing to the side stem of the level bottle We also would like to announce our upgrade windsor escorts now magazine new version due caht the web browser is no longer support Flash at the end of The of tests phong chat can be expected from the caustic solution may vary hpong to the strength of the solution being used. Depress the lock plates and push the cross bar rapidly downwards until the container is pierced.
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 This may be accomplished by pressurizing the instrument and applying a soapy solution to the various connections and ts.