6. Before exercising the power conferred by paragraph 1(g) in the case of any article or substance, an authorised person shall consult—
(a)such persons having duties on the premises where the article or substance is to be dismantled or subject to the process or test; and
(b)such other persons,
as appear to him appropriate for the purpose of ascertaining what dangers, if any, there may be in doing anything which he proposes to do or cause to be done under the power.