| http://www.w3.org/ns/prov#value | - One example of such a barrier is application of a suitable organic-vapor suppressing foam.(c) A container used to meet the requirements of either paragraph (b)(2) or (b)(3) of this section shall be equipped with covers and closure devices, as applicable to the container, that are composed of suitable materials to minimize exposure of the regulated-material to the atmosphere and to maintain the equ
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