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U.S. Department of Health and Human Services

Threshold of Regulation (TOR) Exemptions

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Last updated August 2014

Listed below are the exemptions that have been issued under 21 CFR 170.39 Threshold of regulation for substances used in food-contact articles. Threshold of Regulation Exemptions are generally applicable and are effective for the food contact substance (FCS) for the listed intended use regardless of manufacturer or supplier. The list includes the name of the company that made the request, the chemical name of the substance, the specific use for which the substance received an exemption from regulation as a food additive, and any appropriate limitations on the substance's use. Questions pertaining to this list should be directed to the Office of Food Additive Safety (premarkt@fda.hhs.gov).

More about food contact substances.


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Records Found: 113 Show All Page 1 of 3
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(sorted Z-A)
Requestor Food Contact Substance Use Limitations*
2014-003 NSF International on behalf of Carboline Company Hexamethylenediamine (CAS Reg. No. 124-09-4), 1,2-diaminocyclohexane (CAS Reg. No. 694-83-7), and 4,4’-methylenebis(2-ethylbenzamine) (CAS Reg. No. 19900-65-3) For use as curing agents in epoxy resins complying with 21 CFR 175.300(b)(3)(viii). The final coating will be used on the food contact surface of repeat use bulk food containers (i.e. railcars, ship holds, tanker trailers, etc.) only, in contact with all foods at room temperature and below. The final coating should meet the extractives specifications in §175.300(c) and be thoroughly cleansed prior to its first use in contact with food in accordance with §175.300(g).
2014-002 Keller and Heckman, LLP on behalf of Whitford Corporation Methyltrimethoxysilane (CAS Reg. No. 1185-55-3) and methyltriethoxysilane (CAS Reg. No. 2031-67-6) For use as monomers in silicone resins complying with 21 CFR 175.300(b)(3)(xxviii). The finished resin will be used in repeat use food contact applications only and should meet the extractives specifications in §175.300(c) and be thoroughly cleansed prior to its first use in contact with food in accordance with §175.300(g).
2014-001 Interplastic Corporation 4-hydroxy-2,2,6,6-tetramethylpiperidinooxy (CAS Reg. No. 2226-96-2) For use as an inhibitor in the polymerization of thermosetting styrenated polyester resins complying with 21 CFR 177.2420. The food contact substance (FCS) may be used at a level not to exceed 0.08 % by weight of the finished resin. If used with other inhibitors allowed for use in resins complying with 21 CFR 177.2420, the total combined use level of all inhibitors cannot exceed 0.08 % by weight of the finished resin. The finished resin is intended for use as articles or components of articles for repeated use in contact with food, provided the finished resins meet the extractive limitations in 21 CFR 177.2420(c) and the finished articles are thoroughly cleansed prior to their first use in contact with food in accordance with 21 CFR 177.2420(d).
2013-001 BIOSAFE, Inc. A mixture of 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium chlorides (CAS Reg. No. 199111-50-7) For use as an antimicrobial to preserve finished food contact articles. The food contact substance (FCS) will be used as an additive without food type or temperature limitation in:
  1. food preparation surfaces (where the FCS is either incorporated into the resin, a food contact laminate layer, or applied to the surface as part of a coating). The FCS may be used at a maximum use level of 1 weight percent of the resin, laminate, or coating.
  2. polymeric tubing for the transfer of beverages. The FCS may be used at a maximum use level of 1 weight percent of the finished tubing.
  3. repeat use activated carbon water filters. The FCS may be used at a maximum use level of 0.25 weight percent of the carbon block.
2012-002 Mizuawa Industrial Chemicals, Ltd Sodium calcium aluminosilicate particles surface modified with up to 0.5 weight percent of 3-(triethoxysilyl) propylamine For use as an anti-blocking additive in Nylon films, up to a level of 1000 ppm (0.1 weight percent) of the finished film. The finished film will have a maximum thickness of 25 µm and will be used in contact with all foods in applications up to 121°C.
2012-001 Ecolab A mixture of 1,3-propanediamine, n-9-octadecenyl-, (z)- (CAS Reg. No. 7173-62-8), amines, n-coco alkyltrimethylenedi- (CAS Reg. No. 61791-63-7), cocamine (CAS Reg. No. 61788-46-3), poly(oxy-1,2-ethanediyl), α-isotridecyl-ω-hydroxy- (CAS Reg. No. 9043-30-5), poly(oxy-1,2-ethanediyl), α-tridecyl-ω-hydroxy-, branched (CAS Reg. No 69011-36-5), poly(oxy-1,2-ethanediyl), α-(carboxymethyl)-ω-[(9Z)-9-octadecen-1-yloxy]- (CAS Reg. No. 57635-48-0), and potassium acetate (CAS Reg. No 127-08-2) For use as a lubricant for use in the conveyance of beverage containers. The subjects of the TOR request can be used at a combined total level not to exceed 0.75 weight % in dispersions applied to the conveyor belt below the bottle opening.
2011-002 Keller and Heckman, LLP. Polyethylene glycol with a minimum molecular weight of 400 Daltons (CAS Reg. No. 25322-68-3) For use as a modifier for polyethylene terephthalate films with a maximum thickness of 2 mils. The subject of the TOR request may be used at a level not to exceed 12 % by weight of the final film. The resulting finished article may be used in contact with all food types (or according to other applicable limitations/specifications as appropriate) under Conditions of Use E through G.
2011-001 Nanobiomatters BactiBlock S.L. Silver (CAS Reg. No. 7440-22-4) and cetyltrimethylammonium bromide (CAS Reg. No. 57-09-0) For use as components of an antimicrobial formulation to be used to preserve composite countertops consisting of a polymeric binder and inorganic filler. The antimicrobial formulation will contain up to 0.5 % by weight of silver and up to 30 % by weight of cetyl trimethylammonium bromide with the remainder consisting of a suitable substance regulated for the intended use. The antimicrobial formulation will be incorporated into the polymeric binder at a level not to exceed 1 % by weight. The final composite countertop will incorporate the polymeric binder at a level not to exceed 10 % by weight with the remainder consisting of inorganic filler of a quality suitable for food-contact use. The final food contact article will be used in contact with all foods at room temperature and below.
2010-003 Engineered nanoProducts Germany AG Vitreous silica coating prepared by sol-gel polycondensation reaction of tetraethoxysilane and methyl-triethoxysilane For use as a permanent or semi-permanent coating of metal substrates intended for cooking food in repeat-use applications. The final food contact article will be used in repeat-use cooking applications in contact with all food types at a maximum temperature of 300°C.
2010-002 Sadex, Inc. The food additives listed in: (a) Title 21 CFR Parts 174 through 186, (b) the inventory of effective food-contact substance notifications, and (c) the inventory of Threshold of Regulation exemptions issued under Title 21 CFR 170.39. In the manufacture of food-contact articles that will be irradiated, incidental to the radiation processing of prepackaged foods. This exemption applies only when:
  1. The radiation processing is done in compliance with Title 21 CFR Part 179;
  2. The packaging materials are subjected to radiation doses not exceeding 4.5 kGy;
  3. The packaged food is irradiated either in a verifiably oxygen-free environment or while frozen and contained under vacuum.
2010-001 Tronox, LLC 1,1,1’-trimethylolpropane (CAS Reg. No. 77-99-6) and zirconium dioxide (CAS Reg. No. 1314-23-4) For use as modifying agents for titanium dioxide pigments. Each subject of the TOR request would be used at a maximum level of 0.7% of the titanium dioxide pigment formulation. The resulting titanium dioxide pigment would be used at a level not to exceed 5% by weight of finished repeat-use polymers or coatings intended for use in contact with all foods under use conditions up to and including cooking.
2009-003 Hitachi Chemical Company, Ltd. Triethylamine (CAS No. 121-44-8) For use in the manufacture of polyamide-imide resin intended for use as a component in primer coatings between the metal surface and the fluorocarbon layer of non-stick surfaces of cooking utensils. The final food contact article will be used in repeat-use cooking applications in contact with all food types at a maximum temperature of 290°C.
2009-002 Korea Engineering Plastics Co., Ltd.   Dimethoxymethane (Methylal) (CAS Number: 109-87-5) For use as a chain transfer agent in the polymerization of polyoxymethylene copolymers in the manufacture of repeat use food-contact articles, at temperatures below 250°F, and in contact with all food types, except those containing more than 15% alcohol.
2009-001 Eric F. Greenberg, P.C. on behalf of Wacker Chemical Corporation   Polysiloxane (dimethyl, 3-hydroxypropyl methyl), ethoxylated propoxylated, polymer with hexamethylenediisocyanate, which is the reaction product resulting from a mixture of two polymeric starting materials with hexamethylenediisocyanate.   The FCS shall be added to the pulp water at a level not to exceed 4 mg/kg of pulp. The food contact substance will act as an antifoaming agent in the production of food contact paper that will contact all types of food.
2008-001 H.B. Fuller Polyurethane (PUR) resin (CAS Reg. No. 82602-41-3 ) For use as an adhesive between layers in the fabrication of laminate food-contact articles used for microwave cooking at temperatures not to exceed 212°F, in contact with aqueous food (food type I, Table 1, 21 CFR 176.170(c).)
2007-006 Kraska Consultants, Inc on behalf of Omnova Solutions, 1,1'-Oxybisbenzene tetrapropylene derivatives, sulfonated, sodium salts (CAS Reg. No. 119345-04-0) For use as components of adhesives under use conditions as specified in 21 CFR 175.105(a)(2)(i)(ii) and in pressure sensitive adhesives as specified in 21 CFR 175.125(b) on labels and tape applied to raw fruits and raw vegetables. The temperature of use should not exceed 120°F.
2007-005 Ciba Specialty Chemicals Corporation Tin oxide (SnO2), (CAS Reg. No. 18282-10-5), For use at a maximum concentration of 2.0% by weight as a component in mica-based mineral colorants, provided the maximum loading level for the mica-based colorants in the food-contact article does not exceed 3% by weight for polymers, 5% for paper and paperboard, 15% for coatings or 30% for ink formulations, in contact with all food types and under temperature conditions of use A through H.
2007-004 Kraska Consultants, Inc on behalf of Omnova Solutions
  1. 3(2H)-Isothiazolon-3-one, 2-methyl- (CAS Reg. No. 2682-20-4), and
  2. 3(2H)-Isothiazolon-3-one, 5-chloro-2-methyl- (CAS Reg. No. 26172-55-4)
Used as components of pressure sensitive adhesives. These substances are used as a biocide preservative according to their FIFRA registrations as product preservatives in water based adhesive products. Also, the adhesive shall be used at GMP levels (i.e., the minimum amount needed to accomplish the intended technical effect) and the use of these biocides in the adhesive formulation shall be 1 percent or less by weight. These substances shall be used in formulations with modified butadiene/styrene copolymers.
2007-003 Keller and Heckman on behalf of Owens-Illinois Closure Inc. Hydrogen peroxide (CAS Reg. No. 7722-84-1) To sterilize food-contact surfaces that have an appropriate regulatory status for its intended use in the production of aseptic packaging and meet the requirements and limitations of 21 CFR 178.1005 Hydrogen peroxide.
2007-002 REPLACED BY TOR 10-002 ----------- --------
2007-001 Kraska Consultants, Inc.
  1. 1,2-Benzisothiazolin-3-one (BIT); (CAS Reg. No. 2634-33-5),
  2. 1,1,3-tris(5-tert-butyl-4-hydroxy-2-methylphenyl)butane; (CAS Reg. No.1843-03-4), and
  3. naphthalene sulfonic acid-formaldehyde condensate, sodium salt; CAS Reg. No. 9084-06-4).
As components of an adhesive formulation when used as specified below: Substance A, a biocide preservative will be used according to its FIFRA registration as a product preservative in water based adhesive products. Substances B and C will be used as antioxidants in adhesives and will be used at levels not to exceed 1 percent of the adhesive. The adhesive shall be used at GMP levels (i.e., the minimum amount needed to accomplish the intended technical effect). Also, these substances are limited to use in formulations with modified butadiene /styrene copolymers.
2006-002 Cryovac Sealed Air Corp.
  1. Glycerol monooleate complying with 21 CFR 184.1323, as long as it is used at GMP levels (i.e., the minimum amount necessary to achieve the intended effect);
  2. Polyamide 6/66 complying with 177.1500(b) 4.2 and 177.1395; and,
  3. Polyamide 6/12 complying with 177.1500(b) 13.1 and 177.1395.
Use as a lidding film to cover a polystyrene foam tray intended to be used in contact with ground beef during electron beam irradiation of the ground beef in a nitrogen atmosphere, at doses of 1.5 to 3.0 kGy. This exemption applies when these components are irradiated, incidental to the irradiation processing of prepackaged food, in a vacuum or in an oxygen-free environment at doses not exceeding 3.0 kGy
2006-001 General Electric Phenol, 4-methyl, reaction products with dicyclopentadiene and isobutylene (CAS Reg. No. 6861-51-5) As an antioxidant/stabilizer to inhibit thermo-oxidative degradation, in methylmethacrylate modified acrylonitrile/butadiene/styrene (ABS) polymers which are the subject of FCN 190 and acrylonitrile/styrene copolymers complying with 21 CFR 177.1040 and 21 CFR 181.32, at a maximum concentration of 1% by weight, and in contact with food types I, II, IV-B, VI-A, VI-B, VII-B, and VIII under conditions of use C through G, as described in Table 2, 21 CFR 176.170(c).
2005-008 Omaha Steaks Co. A multilayer packaging film containing:
  1. The following substances as long as they meet the applicable use level limitations in §178.2010 or §178.3860 or an effective notification:
    1. 1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene (CAS Reg. No. 1709-70-2).
    2. Erucamide (CAS Reg. No. 112-84-5)
  2. Zinc oxide as long as it is used at GMP levels (i.e. the minimum amount necessary to achieve the intended technical effect):
  3. An ionomeric resin, complying with §177.1330, as a component of the food contact layer of the laminate.
  4. Polybutylene, complying with §177.1570, as a component of the food contact layer of the laminate.
  5. An urethane adhesive, provided it complies with §175.105, as a component of the adhesive, non-food contact layer of the laminate.
The packaging materials are to be used in contact with ground beef during irradiation of the vacuum packed and frozen ground beef at doses not to exceed 3.0 kiloGrays (kGy)
2005-007 Mitec Advanced Technology Polystyrene foam tray with a multi-layer food-contact coating. The coating may contain:
  1. The following substances as long as they meet the applicable use level limitations in §178.2010 or an effective notification:
    1. Tetrakis [methylene (3,5-di-tert-butyl-4-hydroxyhydrocinnamate) methane] (CAS Reg. No. 6683-19-8).
    2. Octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate (CAS Reg. No. 2082-79-3).
    3. Di-tert-butylphenyl phosphonite condensation product with biphenyl (CAS Reg. No. 119345-01-6).
    4. Tri(mixed mono- and di-nonylphenyl) phosphate (CAS Reg. No. 26523-78-4)
    5. Tris(2,4-di-tert-butyphenyl)phosphite (CAS Reg. No. 31570-04-4)
    6. Cyclic neopentanetetrayl bis(octadecyl phosphite) (CAS Reg. No. 3806-34-6)
  2. The following substances as long as they are used at GMP levels (i.e. the minimum amount necessary to achieve the intended technical effect).
    1. Butylated hydroxytoluene (BHT)
    2. Diatomaceous silica
  3. A blend of a styrene-butadiene thermoplastic elastomer and a styrene-butadiene copolymer, both complying with §177.1640, as components of the non-food contact layers of the laminate.
  4. An ethylene vinyl alcohol copolymer, complying with §177.1360, as a component of the non-food contact layers of the laminate.
For use in contact with ground beef during electron beam irradiation of the ground beef in a nitrogen atmosphere, at doses not to exceed 3.0 kilograys (kGy).
2005-006 Ciba Specialty Chemical Corp. Sodium perchlorate monohydrate (CAS Reg. No. 7791-07-3) As a conductivity enhancer in the manufacture of antistatic agents at a maximum concentration of 4 percent by weight in the finished article for use in contact with dry foods.
2005-005 Keller and Heckman on behalf of Dyneon LLC Polytetrafluoroethylene micropowders For repeated use applications in contact with all food types under all conditions of use.
2005-004 Keller and Heckman on behalf of Koch Membrane Systems, Inc A blend of vinyl chloride/vinyl acetate resin, carbon black and isophorone, with maximum use levels of 30%, 20%, and 70%, respectively. As a black ink formulation to mark the outer membrane of a repeat-use food processing module at levels not to exceed 36 mg.
2005-003 Ciba Specialty Chemical Corp. Polyvinylpyrrolidone CAS Reg. No.9003-39-8 As a dispersing agent in colorants for all polymers intended for use as components of food-contact articles, at levels not to exceed 0.03 precent by weight of the polymer, and in contact with all food types.
2005-002 Schiff & Company on behalf of USR Optonix, Inc Zinc sulfide doped with manganese and copper Use of manganese at levels up to 0.5 % by weight; and use of copper at levels up to 1.0% by weight and manganese at levels up to 1% by weight as dopants in zinc sulfide pigments used at levels up to 10% by weight in plastic cups, plates and disposable cutlery destined for food-contact applications.
2005-001 Asahi Glass Fluoropolymers, Ltd Cupric oxide (Cu)), copper powder, and aluminum oxide (Al2O3) As thermal stabilizers in the manufacture of ethylene tetrafluoroethylene (ETFE). The maximum use level of the cupric oxide, copper powder, and aluminum oxide (Al2O3) in the copolymer shall not exceed 55 ppm, 300 ppm, and 500 ppm, respectively.
2004-003 HP Polymers, Inc 1H,3H-benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone, polymer with 5,5'-carbonylbis[1,3-isobenzofuranedione] and 1,3-diisocyanatomethylbenzene (CAS Reg. No. 134119-41-8) As a filler at a maximum use level of 20% by weight in polytetrafluoroethylene seals, bushings and bearings in food-processing equipment intended for repeated use provided the temperature does not exceed 100E C. In accordance with good manufacturing practice, those food-contact articles containing the subject additive should be thoroughly cleansed prior to their first use in contact with food.
2004-002 Huntsman Corp. C16 - C18 fatty alcohol reacted with approximately 16 moles of ethylene oxide (natural fatty alcohol) and diethylene glycol monobutyl ether As a production aid in the manufacture of latex rubber gloves for food contact use complying with 21 FR 177.2600.
2004-001 Interplastic Corp. 2,4-pentanedione (CAS Reg. No. 123-54-6) and N,N-dimethylacetoacetamide (CAS Reg. No. 2044-64-6) For use at maximum levels of 0.05 percent and 0.08 percent by weight, respectively, to assist the curing of thermosetting styrenated polyester resins complying with 21 CFR 177.2420 and intended for repeat use as articles or as components of articles used in contact with food, the finished resins must meet the extractive limitations in 21 CFR 177.2420(c) and must be thoroughly cleansed prior to their use with food as specified in 21 CFR 177.2420(d).
2003-001 Keller and Heckman A mixture of parafinic oil (CAS Reg. No. 64742-65-0) and sulfonated paraffinic oil (CAS Reg. No. 64742-20-2) As components of a grease lubricant with incidental food contact as specified in 21 CFR 178.3570 and at a maximum total use level of 13.2 percent by weight.
2000-003 Keller and Heckman on behalf of BASF Corporation An ethoxylated and propoxylated tallow fatty alcohol (CAS Reg. No. 68002-96-0) As a defoaming agent in the manufacture of uncoated paper and paperboard at levels not exceeding 0.1% by weight of dry pulp.
2000-002 HP Polymer, Inc. 1H,3H-benzo(1,2-c:4,5-c')difuran-1,3,5,7-tetrone, polymer with 5,5'-carbonylbis(1,3-isobenzofuranedione) and 1,3-diisocyanatomethylbenzene As a filler at a maximum use level of 20% by weight in polytetrafluoroethylene seals, bushings and bearings in food-processing equipment intended for repeated use provided the temperature does not exceed 120°F. In accordance with good manufacturing practice, those food-contact articles containing the subject additive should be thoroughly cleansed prior to their first use in contact with food.
2000-001 Keller and Heckman on behalf of KoSa Polyethylene terephthalate/isophthalate copolymers containing 94 weight percent of the polymer units derived from ethylene terephthalate. As a component of repeat use food-contact articles in contact with aqueous, acidic and low-alcohol foods (alcohol content not exceeding 15 %) at temperatures not exceeding 49°C.
1999-022 Keller and Heckman on behalf of Mitsui Chemicals Inc. A copolymer consisting of linear low density polyethylene complying with 21 CFR 177.1520(c), item 3.2, which has been subsequently grafted with 0.8% or less by weight of maleic anhydride. The intended use would involve the blending of the subject additive at levels up to 15 weight percent with other polyolefins complying with 21 CFR 177.1520 to form a polymeric film with a maximum thickness of 1 mil. The blended polymeric film would function either as the adhesive non food-contact inner-layer or as the heat seal food-contact layer in multilayered packaging that will be approximately 4 mils thick and used to hold processed meat during and after cooking.
1999-021 Environ on behalf of ICI Polyurethanes Three polymeric diphenyl-methane diisocyanate (PMDI) formulations consisting mainly of PMDI (CAS Reg. No. 9016-87-9) and 4,4'-methylenediphenyl diisocyanate (MDI)(CAS Reg. No. 101-68-8). The three PMDI formulations would contain up to 53% PMDI and 52% MDI. For use as strengthening agents at levels up to 1% by weight in paper and paperboard (coated and uncoated) in contact with aqueous food at temperatures that do not exceed 120°F.
1999-020 Keller and Heckman on behalf of Ferro Corporation Solvent Yellow 72 (CAS Reg. No. 4645-07-2) and Disperse Orange 47 (CAS Reg. No. 5718-26-3) Solvent Yellow 72 and Disperse Orange 47 as colorants at levels up to 0.39% and 0.30% by weight, respectively, in foamed polystyrene articles used in contact with all types of food, including meat, fish and poultry, under the following conditions: (1) Conditions of Use F and G; (Table 2, 21 CFR 176.170) and (2) Condition of Use E for storage times of one hour or less.
1999-019 Keller and Heckman C.I. Solvent Blue 36 (CAS Reg. No. 14233-37-5) As a colorant at levels up to 0.011 % by weight in foamed polystyrene articles used in contact with all types of food under refrigerated temperatures and below (Conditions of Use F and G; Table 2, 21 CFR 176.170).
1999-018 Keller and Heckman on behalf of ReedSpectrum Solvent Red 26 (CAS Reg. No. 4477-79-6) As a colorant at levels up to 0.2 % by weight in foamed polystyrene articles used in contact with all types of food, including meat and poultry, under refrigerated temperatures and below (Conditions of Use F and G; Table 2, 21 CFR 176.170).
1999-017 Technogenia Inc. An alloy consisting of tungsten carbide (68% by weight) and a matrix of nickel (11.2% or less by weight), chromium (11% or less by wt.), iron (3.6% or less by wt. ) boron(2% or less by wt.), silicon (3.5% or less by wt.) and trace amounts of carbon (0.6% or less by wt.) and cobalt (0.1% or less) For use in the manufacture of food -processing equipment.
1999-016 Schiff and Company Copper and copper cobalt Copper and copper cobalt, at levels up to 0.1% by weight, as dopants in zinc sulfide pigments used at levels up to 10% by weight in plastic cups, plates and disposable cutlery destined for food-contact applications.
1999-015 Elementis Performance Polymers 2-Ethyl-1,3-hexanediol (CAS Reg. No. 94-96-2) As the diol component of polyurethane adhesives used in the construction of reverse osmosis membranes for filtering water and aqueous-based liquid food provided the reverse osmosis membrane meets all applicable limitations in 21 CFR 177.2550 and the maximum temperature of use does not exceed 140°F.
1999-014 Tecknor Color Company Solvent Red 24 (CAS Reg. No. 85-83-6), Solvent Yellow 72 (CAS Reg. No. 4645-07-2) and Solvent Orange 60 (CAS Reg. No. 6925-69-5) Solvent Red 24, Solvent Yellow 72 and Solvent Orange 60 as colorants at levels up to 0.15%, 0.045% and 0.025% by weight, respectively, in foamed polystyrene articles used in contact with all types of food, including meat and poultry, under refrigerated temperatures and below (Conditions of Use F and G; Table 2, 21 CFR 176.170).
1999-013 CanTox Incorporated on behalf of Rohm Enzyme Finland Xylanases (hemicellulase enzyme preparations) manufactured by fermentation of genetically modified strains of Trichoderma Reesei As pre-bleaching agents for wood pulp used in the manufacture of food-contact paper provided the use level does not exceed 100 Birchwood Xylanase Units (BXU)/g pulp or 100 Thermo Xylanase Units (TXU)/g pulp. ( 1 BXU or 1 TXU = 1 nanokatal)
1999-012 Interplastic Corporation; Silmar Resins Division Potassium 2-ethylhexanoate (CAS Reg. No. 3164-85-0) and dodecyltrimethyl ammonium chloride (CAS Reg. No. 112-00-5) Potassium 2-ethylhexanoate and dodecyltrimethyl ammonium chloride, at maximum use levels of 0.075% and 0.03% by weight, respectively, in the manufacture of thermosetting styrenated polyester resins complying with 21 CFR 177.2420 and intended for use as articles or components of articles for repeated use in contact with food , provided the finished resins meet the extractive limitations in 21 CFR 177.2420(c) and the finished articles are thoroughly cleansed prior to their first use in contact with food in accordance with 21 CFR 177.2420(d).
1999-011 Lewis and Harrison (1) A mixture composed of bromochloro-5, 5-dimethyl-hydantoin (CAS Reg. No. 32718-18-6), dichloro-5,5-dimethylhydantoin (CAS Reg. No. 118-52-5) and dichloro-5-ethyl-5-methylhydantoin (CAS Reg. No. 89415-87-2). (2) A mixture composed of dichloro-5,5-dimethyl-hydantoin and dichloro-5-ethyl-5-methylhydantoin As slimicides in the manufacture of food-contact paper and paperboard at a maximum use level of 150 ppm expressed on a dry pulp weight basis.

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*For references to food types and conditions of use, see Food Types & Conditions of Use for Food Contact Substances

File
(sorted Z-A)
Requestor Food Contact Substance Use Limitations*
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