['Specialized Industries']

['Mining']

07/19/2025

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§56.4604 Preparation of pipelines or containers.

...

§56.4604 Preparation of pipelines or containers.

RegSense CFR Regulations Mining Specialized Industries CFR Section English Focus Area USA

Before welding, cutting, or applying heat with an open flame to pipelines or containers that have contained flammable or combustible liquids, flammable gases, or explosive solids, the pipelines or containers shall be—

(a) Drained, ventilated, and thoroughly cleaned of any residue;

(b) Vented to prevent pressure build-up during the application of heat; and

(1) Filled with an inert gas or water, where compatible; or

(2) Determined to be free of flammable gases by a flammable gas detection device prior to and at frequent intervals during the application of heat.

['Specialized Industries']

['Mining']

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