This Standard specifies the determination methods for toluene-2,6-diisocyanate, diphenylmethane-4,4-diisocyanate, toluene-2,4-diisocyanate, naphthalene-1,5- diisocyanate, phenyl isocyanate, hexamethylene diisocyanate and cyclohexyl isocyanate in plastics for food contact material and their products; this Standard specifies the determination method for the total amount of the above 7 isocyanates.