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§177.2250 微孔聚合物的滤材(Filters, microporous polymeric)

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放大字体缩小字体2011-10-13 10:55:00 来源9a href="http://www.law.cornell.edu/cfr/text/21/177/2250" target="_blank" rel="nofollow">GPO浏览次数9span id="hits">2704
核心提示:微孔聚合物的滤材由具有适当渗透性的聚氯乙烯、氯乙烯/丙烯、或氯乙?乙酸乙烯酯的连续聚合基本组成,其中包埋有细小的二氧化硅。任何用于生产微孔聚合物滤材的各种物质,如果是本?70~189各部分规定的物质,则必须符合这些规定中的各项质量指标。在滤材生产中用环己酮作为溶剂时,其量应不超过微孔聚合物滤材量的0.35%。微孔聚合物滤材可按本章178?297规定的着色剂着色。通过微孔聚合物滤材加工的食品温度应不超过82.2℃、/div>
发布单位
FDA
FDA
发布文号 56 FR 42933
发布日期 1991-08-29 生效日期 暂无
有效性状?/th> 废止日期 暂无
备注 微孔聚合物的滤材由具有适当渗透性的聚氯乙烯、氯乙烯/丙烯、或氯乙?乙酸乙烯酯的连续聚合基本组成,其中包埋有细小的二氧化硅。任何用于生产微孔聚合物滤材的各种物质,如果是本?70~189各部分规定的物质,则必须符合这些规定中的各项质量指标。在滤材生产中用环己酮作为溶剂时,其量应不超过微孔聚合物滤材量的0.35%。微孔聚合物滤材可用本章178?297规定的着色剂着色。通过微孔聚合物滤材加工的食品温度应不超过82.2℃、/td>

177.2250 Filters, microporous polymeric

  
Microporous polymeric filters identified in paragraph (a of this section may be safely used, subject to the provisions of this section, to remove particles of insoluble matter in producing, manufacturing, processing, and preparing bulk quantities of liquid food.

  (a Microporous polymeric filters consist of a suitably permeable, continuous, polymeric matrix of polyvinyl chloride, vinyl chloride-propylene, or vinyl chloride-vinyl acetate, in which finely divided silicon dioxide is embedded. Cyclohexanone may be used as a solvent in the production of the filters.

  (b Any substance employed in the production of microporous polymeric filters that is the subject of a regulation in parts 170 through 189 of this chapter must conform with any specification in such regulation.

  (c Cyclohexanone when used as a solvent in the production of the filters shall not exceed 0.35 percent by weight of the microporous polymeric filters.

  (d The microporous polymeric filters may be colored with colorants used in accordance with 178.3297 of this chapter.

  (e The temperature of food being processed through the microporous polymeric filters shall not exceed 180 F.

  (f The microporous polymeric filters shall be maintained in a sanitary manner in accordance with good manufacturing practice so as to prevent potential microbial adulteration of the food.

  (g To assure safe use of the microporous polymeric filters, the label or labeling shall include adequate directions for a pre-use treatment, consisting of washing with a minimum of 2 gallons of potable water at a temperature of 180 F for each square foot of filter, prior to the filter's first use in contact with food.

   [42 FR 14572, Mar. 15, 1977, as amended at 56 FR 42933, Aug. 30, 1991]

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