What is a mandatory distance for outdoor discharge of purged gases from sources of ignition?

The correct choice reflects an important safety measure regarding the handling of purged gases in relation to sources of ignition. A mandatory distance of 10 feet is enforced to minimize the risk of fire and explosion. This standard is based on the understanding that gases, when discharged, can disperse and potentially ignite if they come into contact with an ignition source, such as an open flame or electrical spark.

Maintaining this safe distance ensures that any accumulated gases do not pose a hazard, thereby protecting both personnel and property. Ensuring compliance with regulations related to gas discharge distances is critical in preventing dangerous situations in outdoor environments.