Gas

We have a range of common gases in stock. Let us know your needs in advance, so that we can ensure that we keep the product you need in stock. 

If you need a gas or grade not listed here, we can special order gases from Praxair.  If you wish to contact Praxair directly for quotes and/or advice, please ask us for Praxair's contact email and phone number.

We have the following gases in stock.

Gas Size Fitting Pressure
Air (medical)  K 346 2200 / 154
Argon  T 580 2640 /183
Argon UHP  T 580 2640 /183
Argon / 5% Hydrogen  T 350 2000 / 138
Carbogen  K 280  
Carbon dioxide  K 320* 830 / 57.2
Helium  T 580 2640 /183
Helium UHP  T 580 2640 /183
Hydrogen PP  T 350 2400 / 165
Nitrogen (black) T 580 2640 / 183
Nitrogen PP  T 580 2640 / 183
Nitrogen UHP  T 580 2640 / 183
Nitrogen / 5% Hydrogen  T 350 2000 / 138
Oxygen  T 540 2640 / 183
Oxygen Medical  E 870 2000 / 138

*requires washer, available from Science Stores

Safety

Follow the guidelines below when using gas cylinders and most hazards can be avoided.  See: OHSE Special Hazards.

  • Always store cylinders securely - Science Stores sells bench and wall clamps for this purpose.
  • Before moving a cylinder ensure that the regulator is removed and the safety cap is in place.
  • Always use a cart to move cylinders.
  • Toxic gases should only be used in appropriate cabinets or fumehoods.
  • Check that your regulator is connected correctly and test that there are no leaks (CO2 requires a washer).
  • If you notice a leak, close the main valve on the cylinder and repair the leak.
  • Close the main valve when a cylinder is not being used.

And for more detailed information on how to safely work with compressed gases please see: 

Step-by-step for Compressed Gases