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Glass Sample Vials: Tubing Closed Flat, with a Lip and a Cork
A vial is a small glass tube closed at one end, usually with a flat bottom where a test tube has a round one. A lip vial is closed with a cork. Work wide glass tubing in the flame as for test tubes, flatten the closed end on the marver, turn out a lip and fit a cork.
The picture: a small old glass vial with its cork.
Hagati
An afternoon
Amabwiriza
1
1
Draw off and close
Draw off and close
Heat the tubing in the flame while turning it until it softens through, then pull the ends apart to close it, as for test tubes. Melt the closed end until the glass gathers evenly.
Ibikoresho by'iyi ntambwe:
Agafuka k'imiyoboro y'ikirahure1 igiceIbikoresho bikenewe:
Itara rya Bunsen
Uturindantoki twihanganira ubushyuhe
Amadarubindi y'umutekano2
2
Flatten the bottom
Flatten the bottom
While the closed end is soft, press it straight down on the marver so it sets flat and the vial stands (our step).
Ibikoresho bikenewe:
Itara rya Bunsen
Marver (urupapuro rwo kuzunguza icyuma cy'ikirahure)Uturindantoki twihanganira ubushyuhe3
3
Cut and turn the lip
Cut and turn the lip
Score the tube at the vial's length with a file and snap it. Heat the open end and roll out a small lip so a cork seats firmly.
Ibikoresho bikenewe:
Ikariso ry'IcyumaItara rya BunsenAmadarubindi y'umutekano4
4
Anneal and cork
Anneal and cork
Let the vial cool slowly in the edge of the flame, then trim a cork to fit the mouth.
Ibikoresho by'iyi ntambwe:
Ibipfundikizo by'ikorogo1 igiceIbikoresho bikenewe:
Itara rya Bunsen
Icyuma gikata cy'akazi
Igitobora ikizibo5
5
Tube size for 50 ml
Tube size for 50 ml
Gupakira ikaye ya Jupyter…
Ibikoresho
2- Umwanya
- 1 igiceUmwanya
Ibikoresho bikenewe
7- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
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