Use the context to decide the meaning of the word condemned . Gas cylinder that cannot be identified from marking must be removed from service, condemned and rendered incapable of holdind pressure

Officially declared to be unfit for use

Explanation:

Condemned is an adjective derived from the verb to condemn. According to the Merriam-Webster Dictionary, it has several meanings:

Since the sentence is about gas cylinders, a type of product, we can conclude that the third meaning is the correct one. Cylinders can't be declared wrong or evil or sentenced to punishment. They can be only declared unusable, which fits the context - gas cylinders that cannot be identified must be removed from service, declared unfit for use, and rendered incapable of holding pressure.