[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR176.230]

[Page 232]
 
                        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
 
 Subpart B_Substances for Use Only as Components of Paper and Paperboard
 
Sec.  176.230  3,5-Dimethyl-1,3,5,2H-tetrahydrothiadiazine-2-thione.

    3,5-Dimethyl-1,3,5,2H-tetrahydrothi-adiazine-2-thione may safely be 
used as a preservative in the manufacture and coating of paper and 
paperboard intended for use in contact with food in accordance with the 
following prescribed conditions:
    (a) It is used as follows:
    (1) In the manufacture of paper and paperboard as a preservative for 
substances added to the pulp suspension prior to the sheet-forming 
operation provided that the preservative is volatilized by heat in the 
drying and finishing of the paper and paperboard.
    (2) As a preservative for coatings for paper and paperboard, 
Provided, That the preservative is volatilized by heat in the drying and 
finishing of the coated paper or paperboard.
    (b) The quantity used shall not exceed the least amount reasonably 
required to accomplish the intended technical effect and shall not be 
intended to nor, in fact, accomplish any physical or technical effect in 
the food itself.
    (c) The use of a preservative in any substance or article subject to 
any regulation in parts 174, 175, 176, 177, 178 and Sec.  179.45 of this 
chapter must comply with any specifications and limitations prescribed 
by such regulation for the substance or article.

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