To suspend temporarily the duty on Benzenesulfonic acid,2,2'-[(1-methyl-1,2-ethanediyl)bis[imino(6-fluoro-1,3,5 triazine-4,2-diyl)imino[2-[(aminocarbonyl)amino]-4,1-phenyl n ]azo]]bis[5-[(4-sulfophenyl)azo]-, sodium salt.