[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of April 1, 2005]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR172.215]

[Page 40-41]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 172_FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR 
HUMAN CONSUMPTION--Table of Contents
 
            Subpart C_Coatings, Films and Related Substances
 
Sec. 172.215  Coumarone-indene resin.

    The food additive coumarone-indene resin may be safely used on 
grapefruit, lemons, limes, oranges, tangelos, and tangerines in 
accordance with the following prescribed conditions:
    (a) The food additive is manufactured by the polymerization of a 
crude, heavy coal-tar solvent naphtha meeting the following 
specifications:
    (1) It is a mixture of indene, indan (hydrindene), substituted 
benzenes, and related compounds.
    (2) It contains no more than 0.25 percent tar bases.
    (3) 95 percent distills in the range 167 [deg]C-184 [deg]C.
    (b) The food additive meets the following specifications:
    (1) Softening point, ring and ball: 126 [deg]C minimum as determined 
by ASTM

[[Page 41]]

method E28-67 (Reapproved 1982), ``Standard Test Method for Softening 
Point by Ring-and-Ball Apparatus,'' which is incorporated by reference. 
Copies may be obtained from the American Society for Testing Materials, 
1916 Race St., Philadelphia, PA 19103, or may be examined at the 
National Archives and Records Administration (NARA). For information on 
the availability of this material at NARA, call 202-741-6030, or go to: 
http://www.archives.gov/federal--register/code--of--federal--
regulations/ibr--locations.html.
    (2) Refractive index (n\25\/D) 1.63-1.64.
    (c) It is used or intended for use as a protective coating for 
grapefruit, lemons, limes, oranges, tangelos, and tangerines whereby the 
maximum amount of the resin remaining on the fruit does not exceed 200 
parts per million on a fresh-weight basis.
    (d) To assure safe use of the additive:
    (1) The label of the market package or any intermediate premix of 
the additive shall bear, in addition to the other information required 
by the act:
    (i) The name of the additive, coumarone-indene resin.
    (ii) A statement of the concentration of the additive therein.
    (2) The label or accompanying labeling shall bear adequate 
directions that, if followed, will result in a finished food not in 
conflict with the requirements of this section.

[42 FR 14491, Mar. 15, 1977, as amended at 49 FR 10103, Mar. 19, 1984]