Compressed gas & cryogens
Lab Edu3
Move with a trolley
Never roll, drag or carry a cylinder.
Step 3 / 6VOICE · ON
IN ONE LINE
A gas cylinder is a stored bomb and a tipping hazard — secure it, cap it, and respect cryogenic cold.
WHAT YOU'LL LEARN
Store, secure and move gas cylinders safely.
Detect leaks and prevent regulator hazards.
Handle cryogens with the right PPE and ventilation.
READ THE LESSON
Pressure is the first hazard
A full cylinder holds enormous energy. If it falls and the valve snaps off, it can rocket through walls. Always chain cylinders upright and keep the cap on to move them.
Cold that displaces air
Liquid nitrogen expands roughly 700 times as it boils, pushing oxygen out of a room. Use cryogens only with good ventilation and an oxygen monitor in small spaces.
Cold burns instantly
Skin contact with cryogenic liquid or uninsulated cold pipe causes burns like severe frostbite. Loose insulated gloves and a face shield are essential.
Asphyxiation risk
Inert gases give no warning. A room can become oxygen-deficient silently — ventilation is non-negotiable.
QUICK CHECK
1 / 5How should gas cylinders be stored?
Select an answer to continue
OSHA · 08
KEY POINTS
Chain cylinders upright; cap to move.
Leak-test with soapy water, never flame.
Cryogens displace oxygen — ventilate.
Use insulated gloves and a face shield.
REFERENCES
OSHA 29 CFR 1910.101 — Compressed gases
CGA P-1 — Safe handling of cylinders
NIST cryogenic safety guidance
RELATED EQUIPMENT