On the other hand, the Council requires that the information be complete and accurate as to medicinal ingredients. _Unofficial Constituents._--Unofficial constituents of proprietary mixtures must be presented by the manufacturer in the regular way and must be acted on by the Council before the preparations containing them can be accepted. _Fraud._--When it appears that a manufacturer has made a _deliberately_ false statement concerning a product, he is asked to furnish an explanation; and if this is not satisfactory, the product will not be accepted, even if the false statement is subsequently corrected or omitted. _Testimonials._--The foregoing paragraph applies not only to statements made to the Council, but also to statements furnished to physicians by the manufacturer or his agents, even when these statements are in the guise of testimonials. Explanation of Rule 2: Identification In order to avoid errors in the case of chemical compounds, and to guard against adulterations, lack of potency or strength, and the mistaking of one chemical for another, it is necessary to have at hand suitable tests. _Tests, etc._--If these facts have appeared in the literature, or in standard textbooks, reference to them will be sufficient; but with new chemicals, especially synthetics, the manufacturer or his representatives will be required to supply such tests for publication, as will assure an intelligent opinion of these products. _Physiologic Standardization._--In cases in which chemical methods of identification are unknown or unreliable, physiologic standardization should be employed. The Council considers the phrase “physiologically standardized” or “assayed” as misleading unless the standard and method are published in sufficient detail to permit of their control by independent investigators. It is evident that when no standard is published, it is impossible to know whether the quality is high or low, and the conscientious manufacturer who sets for himself a high standard is placed on a level with the dishonest or careless one who adopts a low standard. Again, if the process of standardization is not published, it is impossible to learn, without actual trial, the relative value of one preparation as compared with that of another manufacturer, or to confirm or disprove the statements of the manufacturer as to the quality of his product. _Standardization of Disinfectants and Germicides._--No disinfectant or germicide of the phenol type will be accepted for New and Nonofficial Remedies whose phenol coefficient, determined according to the method of the Hygienic Laboratory, U. S. P. H. S., is not stated on the label of the preparation. Explanation of Rule 3: Direct Advertising