['Hazardous Materials Safety - OSHA']

['Compressed Gases']

02/04/2026

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Hazardous Materials Safety - OSHA - Compressed Gases
FAQ

FAQ

What is a compressed gas?

RegSense Safety & Health Construction Safety General Industry Safety Compressed Gases Best Results Occupational Safety and Health Administration (OSHA), DOL FAQ Hazardous Materials Safety - OSHA English Focus Area USA

Compressed gases comprise compressed gases, liquefied gases, dissolved gases and refrigerated liquefied gases. Gases under pressure may be defined as:

Compressed gas — A gas which when under pressure is entirely gaseous at -50°C (-58°F), including all gases with a critical temperature1 ≤ 50°C (-58°F).
Liquefied gas — A gas which when under pressure is partially liquid at temperatures above -50°C (-58°F).
Refrigerated liquefied gas — A gas which is made partially liquid because of its low temperature.
Dissolved gas — A gas which when under pressure is dissolved in a liquid phase solvent.

['Hazardous Materials Safety - OSHA']

['Compressed Gases']

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