[Code of Federal Regulations] [Title 21, Volume 3] [Revised as of April 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR176.250] [Page 226-227] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 176_INDIRECT FOOD ADDITIVES: PAPER AND PAPERBOARD COMPONENTS--Table of Contents Subpart B_Substances for Use Only as Components of Paper and Paperboard Sec. 176.250 Poly-1,4,7,10,13-pentaaza-15-hydroxyhexadecane. Poly-1,4,7,10,13-pentaaza-15-hydrox-yhexadecane may be safely used as a retention aid employed prior to the sheet-forming operation in the manufacture of paper and paperboard intended for use in contact with food in [[Page 227]] an amount not to exceed that necessary to accomplish the intended physical or technical effect and not to exceed 6 pounds per ton of finished paper or paperboard.