Test strip for use in occlusive epicutaneous testing to detect contact allergy to formaldehyde

摘要

Test strip having at least one patch thereon and intended for use in occlusive epicutaneous testing in order to detect contact allergy to formaldehyde. The characteristic feature is that on at least one of said at least one patch the test substance is a reversible N-formaldehyde derivative of a carboxamide or -imide, said test substance being formulated in a dry vehicle.