Ensure that the pierceable cartridge is empty before removing.

Pierceable gas cartridges must remain attached to the stove.

Pierceable canisters sit in the stove base and are pierced by a hollow spike.

Pierceable cartridges must be completely empty before they are removed from the appliance, otherwise gas will still escape which is a fire hazard.

Disposable cartridges are either pierceable or self-sealing.

With a few exceptions, both pierceable and self-sealing cartridges from different manufacturers follow agreed standards, leading to worldwide interchangeability.

He had never tried a bullet against that armor; wondered how pierceable it might be; took comfort in the thought that, at worst, the impact would probably knock them from their saddles.