Disclosed are a composition for inhibiting aproliferation of sulphate reducing bacteria comprising atleast one of 1,2-benzisothiazol-3(2H)-one, irgasan,benzyl-2-bromoacetate, 2,2-dibromo-2-cyanoacetamide, and2-bromo-2-nitropropan-1,3-diol as effective ingredients; a method forinhibiting the proliferation of sulphate reducing bacteriacomprising the step of including a sufficient amount forinhibiting the proliferation of sulphate reducing bacteriaof at least one of 1,2-benzisothiazol-3(2H)-one, irgasan,benzyl-2-bromoacetate, 2,2-dibromo-2-cyanoacetamide, and2--bromo-2-nitropropan-1,3-diol in a corrosion sensitivematerial or degradation sensitive material; a sheetcomprising the composition; and a steel plate to which thecomposition is applied.
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