cylinders of compressed gases. Cylinders should never be dropped or allowed to strike each other with force.
*Transport compressed gas cylinders with protective caps in place and do not roll or drag the cylinders.

Cryogens and dry ice

Cryogens, substances used to produce very low temperatures [below -153 °C (-243 °F)], such as liquid nitrogen (LN₂) which has a boiling point of -196 °C (-321 °F), are commonly used in laboratories.

Although

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