. . . g o i n g o n e s t e p f u r t h e r
123
9982-1012504
Water / Ear th / Ai r
Exper iment s
Set of 10 CO
2
Test Tubes, 0.03 – 1.00% by vol.
(not shown)
Set of 10 test tubes for the GASTEC gas detector, used for detecting changes
in carbon dioxide content in the atmosphere due to combustion processes,
for comparison of fresh and stuffy air or observing photosynthesis in
plants.
9982-1012524
Set of 10 CO
2
Test Tubes, 0.5 – 8.0% by vol.
(not shown)
Set of 10 test tubes for the GASTEC gas detector, used for detecting changes
in carbon dioxide content in the atmosphere due to combustion of organic
materials or the breathing of people and animals.
9982-1012526
Set of 10 O
2
Test Tubes, 6 – 24% by vol.
(not shown)
Set of 10 test tubes for the GASTEC gas detector, used for detecting oxygen
content of air in the atmosphere.
9982-1012527
Set of 10 Pairs of Protective Rubber Stoppers
(not shown)
Set of spares including 10 pairs of protective rubber stopper s for test tubes
used with the GASTEC gas detector.
9982-1012528
Enhance your lessons with a multitude of easily conducted experiments
using the GASTEC gas detector.
GASTEC Gas Detector
Easy to use gas detector for analysing gas content in the atmosphere. For
use in countless fundamental experiments. Includes hand pump and acces-
sories for pumping air into specific test tubes, from which the gas content
can be read off by means of the degree of coloration of the adsorption
material.
Contents:
1 Hand pump for pumping in samples
1 Break-off tip for test tubes
1 Set of 10 pairs of protective rubber stoppers
1 Sealing grease
1 Carrying case
1 Teaching poster with suggested experiments, many illustrations
and detailed instructions
9982-1012504
Additionally required:
9982-1012524 Set of 10 CO
2
Test Tubes, 0.03 – 1.00% by vol.
or
9982-1012526 Set of 10 CO
2
Test Tubes, 0.5 – 8.0% by vol.
or
9982-1012527 Set of 10 O
2
Test Tubes, 6 – 24% by vol.
Experiments:
Analysis of stuffy and of fresh air in a room.
Investigation of how carbon dioxide and oxygen content
changes in the atmosphere due to the following processes:
• Burning of a candle.
• Breathing of people and animals.
• Photosynthesis of plants.
• Burning of organic substances.
Gas Analysis Made Child’s Play:
• Open glass test tube using the tip to break off both ends
and close the ends using protective rubber stoppers.
• Push the test tube into the hand pump and hold it at
the required position.
• Suck air into the tube using the pump and wait
30 seconds.
• Take the test tube out of the hand pump and read off
the gas content from the degree of coloration.
