KNOWYOURGAS.

Cylinder identification

The gas inside the cylinder is invisible. Its identity should not be.

KnowYourGas.com

Analyze the gas you will breathe, confirm the result and keep the information with the correct scuba cylinder.

Software boundarySoftware supports the workflow. It does not replace gas analysis, training, dive planning, manual verification or appropriate equipment.

Know what was measured. Check what was recorded. Keep it with the cylinder.

This is awareness content—not training, certification, or a replacement for established procedures.

Read the gas-awareness guide

Analyze

Expected gas is not analyzed gas.

Use appropriate equipment and follow your training to analyze the breathing gas in the cylinder.

Verify

A second check tests the information.

Review the values, the cylinder and its intended use. Important information deserves a deliberate second look.

Identify

Clear information should survive the handoff.

Keep the cylinder and its reviewed information clear for the people who handle and use it.

Attention, routine and assumptions

Confidence cannot measure gas.

A familiar cylinder, a routine fill, a rushed handoff or a confident answer can shape what gets noticed. The response is not shame. It is a check that can reveal disagreement.

See what competes with the check

Clear information should survive the handoff.

A cylinder may move through a fill room, a vehicle, a boat, and a team. Each handoff is another opportunity for context to disappear.

Read about cylinder identification

Keep information connected

The reviewed information should stay associated with the correct cylinder as it moves between people and places.

Make questions easier

Readable information gives the next person something specific to review, question and confirm.

Reduce reliance on memory

A useful handoff does not depend on the presence or memory of the person who prepared it.

Scuba Tank Stickers

Analysis comes first. The app begins with values the diver has already reviewed.

Scuba Tank Stickers turns O₂, He, pressure, ppO₂, MOD, owner, and analysis date into a printable cylinder label.

Visit Scuba Tank Stickers

Scuba Tank Stickers screen for reviewing analyzed gas values before creating a cylinder label — Reviewed values → cylinder labelScuba Tank Stickers

Keep the boundary visible

Before software
Analyze with appropriate equipment and training.
In the app
Enter values you have already analyzed and reviewed, then create and print a clear label.
Still human
Verify the information, the cylinder and the intended use yourself.

Make the useful question easier to ask.

#KnowYourGas

Analyze. Verify. Identify. Not because people are careless. Because people are human.

Read the gas-awareness guide