Respirometer with Stand

Product Code : SCL-LG-11978

The Respirometer with Stand is a biology laboratory apparatus used for investigating respiration through observable gas-pressure changes in two connected chambers. It is intended for students, teachers and laboratory demonstrators who need a stable setup for comparing respiratory activity in germinating seeds, small organisms or other suitable biological specimens.

Product Description

The apparatus has two respiration tubes closed with corks and fitted with three-way taps. Extensions from the tubes connect to a graduated manometer. Changes in gas pressure move the manometer fluid, providing a visible indication of gas exchange during respiration.

The supporting stand keeps the chambers and manometer correctly positioned during observations. The two-chamber arrangement can accommodate an experimental specimen and an appropriate control. Individual chamber volume, construction materials, manometer range and graduation interval were not supplied. Explore related biology laboratory equipment for complementary practical apparatus.

Key Features

• Two-chamber configuration: Supports an experimental setup and an appropriate comparison or control.
• Graduated manometer: Makes pressure-related movement observable and allows displacement readings to be recorded.
• Three-way taps: Help isolate or equalise the chambers according to the experimental procedure.
• Cork closures: Close the respiration tubes while accommodating the connected fittings.
• Supporting stand: Holds the apparatus in a stable viewing position during practical work.
• Comparative respiration study: Helps demonstrate how biological or environmental variables affect respiratory activity.
• No electrical supply required: Uses gas-pressure change and manometer displacement as its observation principle.

Technical Specifications

What’s Included in the Kit

• Two respiration tubes
• Cork closures
• Three-way taps
• Connecting extensions
• One graduated manometer
• One supporting stand

Biological specimens, manometer fluid, carbon dioxide absorbent, water bath and timing equipment are not confirmed as included.

Applications and Uses

• Investigating respiration in germinating seeds or other suitable specimens.
• Comparing respiratory activity between an experimental chamber and a control.
• Demonstrating gas-pressure changes associated with respiration.
• Studying the effect of temperature or another controlled variable on respiration.
• Recording manometer displacement over fixed time intervals.
• Supporting lessons on metabolism, oxygen consumption and gas exchange.

Additional respiration and plant-science teaching aids are available under general biology products.

How to Use the Respirometer with Stand

1. Position the stand on a level, vibration-free laboratory surface.
2. Inspect the respiration tubes, corks, taps and connections for damage or leakage.
3. Place the experimental specimen in one chamber according to the approved procedure.
4. Prepare the second chamber as the specified control, using equal volume or mass where required.
5. Add a carbon dioxide absorbent only when the selected method requires it.
6. Close both chambers and use the taps to equalise their initial pressure.
7. Isolate the system, allow it to stabilise and record the initial manometer reading.
8. Take further readings at equal time intervals while maintaining constant experimental conditions.
9. Calculate displacement or comparative rate only as directed by the laboratory method.

Safety note: Wear suitable laboratory PPE. Carbon dioxide absorbents such as potassium hydroxide or soda lime can be corrosive and require trained handling. Prevent direct contact between the specimen and absorbent, and do not pressurise the apparatus.

Care & Maintenance

• Clean the chambers immediately after use with an agent compatible with their confirmed material.
• Keep manometer passages, taps and connecting tubes free from blockages.
• Check corks and connections regularly because leakage can invalidate observations.
• Store the apparatus upright on its stand in a protected, dry location.

Why Choose Science Lab Supplies?

Science Lab Supplies manufactures and exports scientific laboratory instruments, experiment setups and educational equipment. Its product portfolio supports schools, colleges, universities and institutional laboratories. Buyers can confirm chamber volume, manometer scale, materials and packing requirements before procurement. Compatible vessels and accessories can be explored in the laboratory glassware category.

Frequently Asked Questions

What is a Respirometer with Stand used for?

It is used to investigate respiration by observing gas-pressure changes within a closed experimental system.

What does the graduated manometer show?

The manometer shows pressure-related displacement between the connected chambers. The direction and magnitude of movement are interpreted according to the selected experiment.

Why does the apparatus have two chambers?

One chamber can hold the experimental specimen while the second provides a control or comparison. This helps account for non-biological pressure changes.

Can it measure oxygen consumption?

It can demonstrate relative oxygen uptake when carbon dioxide is absorbed and the experiment is correctly controlled. Absolute measurement requires verified chamber volume, manometer calibration and a validated method.

Why must the temperature remain constant?

Temperature changes can expand or contract the enclosed gas and move the manometer fluid independently of respiration.

Is this respirometer suitable for schools?

Yes. It supports supervised biology experiments on respiration and metabolism when used with appropriate specimens, PPE and an approved procedure.

Confirm the required manometer range and chamber volume, then browse more science laboratory equipment from Science Lab Supplies.

Recommended image ALT text: Respirometer with Stand featuring two respiration chambers, three-way taps and a graduated manometer.