§ 172.280 Terpene resin.
The food additive terpene resin may be safely used in accordance with the following prescribed conditions:
（a） The food additive is the betapinene polymer obtained by polymerizing terpene hydrocarbons derived from wood. It has a softening point of 112 °C–118 °C, as determined by ASTM 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, 100 Barr Harbor Dr., West Conshohocken, Philadelphia, PA 19428-2959, 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.
（b） It is used or intended for use as follows:
（1） As a moisture barrier on soft gelatin capsules in an amount not to exceed 0.07 percent of the weight of the capsule.
（2） As a moisture barrier on powders of ascorbic acid or its salts in an amount not to exceed 7 percent of the weight of the powder.
[42 FR 14491, Mar. 15, 1977, as amended at 49 FR 10104, Mar. 19, 1984]
更多关于美国 FDA 已批准的直接用于人类食品的添加剂种类法规，请点击美国FDA 21 CFR 第172部分已批准的直接用于人类食品的添加剂种类汇总
