[Code of Federal Regulations][Title

[Code of Federal Regulations]
[Title 21, Volume 3]
[Revised as of April 1, 2013]
[CITE: 21CFR177.2600]



TITLE 21--FOOD AND DRUGS
CHAPTER I--FOOD AND DRUG ADMINISTRATION
DEPARTMENT OF HEALTH AND HUMAN SERVICES
SUBCHAPTER B--FOOD FOR HUMAN CONSUMPTION (CONTINUED)
PART 177 -- INDIRECT FOOD ADDITIVES: POLYMERS

Subpart C--Substances for Use Only as Components of Articles Intended for Repeated Use

Sec. 177.2600 Rubber articles intended for repeated use.
Rubber articles intended for repeated use may be safely used in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food, subject to the provisions of this section.

(a) The rubber articles are prepared from natural and/or synthetic polymers and adjuvant substances as described in paragraph (c) of this section.

(b) The quantity of any substance employed in the production of rubber articles intended for repeated use shall not exceed the amount reasonably required to accomplish the intended effect in the rubber article and shall not be intended to accomplish any effect in food.

(c) Substances employed in the preparation of rubber articles include the following, subject to any limitations prescribed:

(1) Substances generally recognized as safe for use in food or food packaging.

(2) Substances used in accordance with the provisions of a prior sanction or approval.

(3) Substances that by regulation in parts 170 through 189 of this chapter may be safely used in rubber articles, subject to the provisions of such regulation.

(4) Substances identified in this paragraph (c)(4), provided that any substance that is the subject of a regulation in parts 174, 175, 176, 177, 178 and 179.45 of this chapter conforms with any specification in such regulation.

(i)Elastomers.

Acrylonitrile-butadiene copolymer.

Brominated isobutylene-isoprene copolymers complying with 177.1210.

Butadiene-acrylonitrile-ethylene glycol dimethacrylate copolymers containing not more than 5 weight percent of polymer units derived from ethylene glycol dimethacrylate.

Butadiene-acrylonitrile-methacrylic acid copolymer.

Butadiene-styrene-methacrylic acid copolymer.

Chloroprene polymers.

Chlorotrifluoroethylene-vinylidene fluoride copolymer.

Ethylene-propylene copolymer elastomers which may contain not more than 5 weight-percent of total polymer units derived from 5-methylene-2-norbornene and/or 5-ethylidine-2-norbornene.

Ethylene-propylene-dicyclopentadiene copolymer.

Ethylene-propylene-1,4-hexadiene copolymers containing no more than 8 weight percent of total polymer units derived from 1,4-hexadiene.

Hydrogenated butadiene/acrylonitrile copolymers (CAS Reg. No. 88254-10-8) produced when acrylonitrile/butadiene copolymers are modified by hydrogenation of the olefinic unsaturation to leave either: (1) Not more than 10 percenttrans olefinic unsaturation and no [alpha], [beta]-olefinic unsaturation as determined by a method entitled "Determination of Residual [alpha], [beta]-Olefinic and Trans Olefinic Unsaturation Levels in HNBR," developed October 1, 1991, by Polysar Rubber Corp., 1256 South Vidal St., Sarnia, Ontario, Canada N7T 7MI; or (2) 0.4 percent to 20 percent olefinic unsaturation and Mooney viscosities greater than 45 (ML 1 + 4 @ 100 deg. C), as determined by ASTM Standard Method D1646-92, "Standard Test Method for Rubber--Viscosity and Vulcanization Characteristics (Mooney Viscometer)," which are both incorporated by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies of these methods may be obtained from the Office of Food Additive Safety (HFS-200), Center for Food Safety and Applied Nutrition, Food and Drug Administration, 5100 Paint Branch Pkwy., College Park, MD 20740, 240-402-1200, or may be examined at the Center for Food Safety and Applied Nutrition's Library, 5100 Paint Branch Pkwy., College Park, MD 20740, or 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. A copy of ASTM Standard Method D1646-92 may also be obtained from the American Society for Testing and Materials, 100 Barr Harbor Dr., West Conshohocken, PA 19428-2959.

Isobutylene-isoprene copolymer.

Polyamide/polyether block copolymers (CAS Reg. No. 77402-38-1 prepared by reacting a copolymer ofomega -laurolactam and adipic acid with poly(tetramethylene ether glycol). The polyamide and polyether components are reacted in ratios such that the polyamide component constitutes a minimum of 30 weight-percent of total polymer units. The copolymers may be used in contact with foods of Types I, II, III, IV, V, VI, VII, VIII, and IX identified in table 1 of 176.170(c) of this chapter at temperatures not to exceed 150 deg. F except that those copolymers prepared with less than 50 weight-percent of polyamide are limited to use in contact with such foods at temperatures not to exceed 100 deg. F.

Polybutadiene.

Polyester elastomers derived from the reaction of dimethyl terephthalate, 1,4-butanediol, and [alpha]-hydro-omega-hydroxypoly (oxytetramethylene). Additionally, trimethyl trimellitate may be used as a reactant. The polyester elastomers may be used only in contact with foods containing not more than 8 percent alcohol and limited to use in contact with food at temperatures not exceeding 150 deg. F.

Polyisoprene.

Polyurethane resins (CAS Reg. Nos. 37383-28-1 or 9018-04-6) derived from the reaction of diphenylmethane diisocyanate with 1,4-butanediol and polytetramethylene ether glycol.

Polyurethane resins derived from reactions of diphenylmethane diisocyanate with adipic acid and 1,4-butanediol.

Rubber, natural.

Silicone basic polymer as described in ASTM method D1418-81, "Standard Practice for Rubber and Rubber Latices--Nomenclature," 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.

Silicone (Si) elastomers containing methyl groups.

Silicone (Psi) elastomers containing methyl and phenyl groups.

Silicone (Vsi) elastomers containing methyl and vinyl groups.

Silicone (Fsi) elastomers containing methyl and fluorine groups.

Silicone (PVsi) elastomers containing phenyl, methyl, and vinyl groups.

Styrene-butadiene copolymer.

Vinylidene fluoride-hexafluoropropylene copolymers (minimum number average molecular weight 70,000 as determined by osmotic pressure in methyl ethyl ketone).

Vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene copolymers (minimum number average molecular weight 100,000 as determined by osmotic pressure in methyl ethyl ketone).

(ii)Vulcanization materials --(a )Vulcanizing agents.

4,4'-Bis(aminocyclohexyl)methane carbamate for use only as cross-linking agent in the vulcanization of vinylidene fluoridehexafluoropropylene copolymer and vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene copolymer elastomers identified under paragraph (c)(4)(i) of this section and limited to use at levels not to exceed 2.4 percent by weight of such copolymers.

Diisopropyl xanthogen polysulfide (a 1:2:1 mixture of O,O-di(1-methylethyl)trithio-bis-thioformate, O,O-di(1-methylethyl)tetrathio-bis-thioformate, and O,O-di(1-methylethyl)pentathio-bis-thioformate) for use as a cross linking agent in the vulcanization of natural rubber, styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, and ethylene-propylene terpolymers identified under paragraph (c)(4)(i) of this section and limited to use at levels not to exceed 2.4 percent by weight of such copolymers.

Hexamethylenediamine carbamate for use only as cross-linking agent in the vulcanization of vinylidene fluoride-hexafluoropropylene copolymer and vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene copolymer elastomers identified under paragraph (c)(4)(i) of this section and limited to use at levels not to exceed 1.5 percent by weight of such copolymers.

Sulfur, ground.

(b )Accelerators (total not to exceed 1.5 percent by weight of rubber product).

2-Benzothiazyl-N,N -diethylthiocarbamyl-sulfide.

Benzoyl peroxide.

1,3-Bis(2-benzothiazolylmercaptomethyl) urea.

N-tert- Butyl-2-benzothiazole sulfenamide.

Butyraldehyde-aniline resin (iodine number 670-705).

Carbon disulfide-1,1'-methylenedipiperidine reaction product.

Copper dimethyldithiocarbamate.

N- Cyclohexyl-2-benzothiazole sulfenamide.

Dibenzoyl-p- quinone dioxime.

Dibenzylamine.

Diisopropyl xanthogen polysulfide (a 1:2:1 mixture of O,O-di(1-methylethyl)trithio-bis-thioformate, O,O-di(1-methylethyl)tetrathio-bis-thioformate, and O,O-di(1-methylethyl)pentathio-bis-thioformate).

Di (4-methylbenzoyl) peroxide (CAS Reg. No. 895-85-2) for use only as a crosslinking agent in silicone polymers and elastomers identified under paragraph (c)(4)(i) of this section at levels not to exceed 1 percent by weight of such polymers and elastomers where the total of all accelerators does not exceed 1.5 percent by weight of rubber product.

Di-tert- butyl peroxide.

Dibutyl xanthogen disulfide.

2,4-Dichlorobenzoyl peroxide.

Dicumyl peroxide.

N,N- Dimethylcyclohexylamine salt of dibutyldithiocarbamic acid.

2,6-Dimethylmorpholine thiobenzothiazol.

Dipentamethylenethiuram hexasulfide (CAS Reg. No. 971-15-3).

Diphenylguanidine.

Diphenylguanidine phthalate.

1,3-Diphenyl-2-thiourea.

2,2'-Dithiobis[benzothiazole].

4,4'-Dithiodimorpholine.

N,N'- Di-o- tolylguanidine.

Di-o- tolylguanidine salt of pyroc

Resultados (Português) 1:

[Código de regulamentos federais][Título 21, Volume 3][Revisto a partir de 1 de abril de 2013.[CITE: 21CFR177.2600]TÍTULO 21 - ALIMENTOS E DROGASCAPÍTULO I - FOOD AND DRUG ADMINISTRATIONDEPARTAMENTO DE SAÚDE E SERVIÇOS HUMANOSSUBCAPÍTULO B - ALIMENTO PARA CONSUMO HUMANO (CONTINUADO)PARTE 177 - ADITIVOS ALIMENTARES INDIRETA: POLÍMEROSSUBPARTE C - substâncias para uso somente como componentes de artigos destinam ao uso repetidoSEC. 177.2600 artigos de borracha destinados a uso repetido.Artigos de borracha destinados a uso repetido podem ser utilizados com segurança em produzindo, fabricação, embalagem, processamento, preparação, tratamento, embalagem, transportando ou segurando comida, sob reserva das disposições da presente secção.(a) os artigos de borracha são preparados a partir de polímeros sintéticos ou naturais e substâncias adjuvantes como descrito no parágrafo (c) desta seção.(b) a quantidade de qualquer substância utilizada na produção de artigos de borracha destinados a uso repetido não pode exceder a quantidade razoavelmente necessária para realizar o efeito pretendido no artigo de borracha e não deve ser destinada para realizar qualquer efeito na comida.(c) substâncias empregadas na preparação de artigos de borracha incluem o seguinte, sujeita a quaisquer limitações prescritas:(1) as substâncias geralmente reconhecidas como seguro para utilização em alimentos ou embalagens de alimentos.(2) substâncias utilizadas em conformidade com as disposições de uma sanção prévia ou aprovação.(3) substâncias que, pelo Regulamento em partes 170 através de 189 do presente capítulo, podem ser utilizadas com segurança em artigos de borracha, sob reserva das disposições de tal regulamento.(4) substâncias identificadas neste parágrafo (c) (4), desde que qualquer substância que é objecto de um regulamento em partes, 174, 175, 176, 177, 178 e 179.45 deste capítulo está de acordo com qualquer especificação em tal regulamentação.(i) Elastômeros.Copolímero de acrilonitrila-butadieno.Copolímeros de isobuteno-isopreno retardadores cumprimento 177.1210.Copolímeros de acrilonitrila-butadieno-etileno glicol Dimetacrilato contendo não mais que 5 por cento do peso das unidades derivadas de polímero de dimetacrilato de etilenoglicol.Copolímero de ácido metacrílico-acrilonitrila-butadieno.Copolímero de ácido metacrílico-butadieno-estireno.Polímeros de borracha de cloropreno.Copolímero de fluoreto de vinilideno-clorotrifluoretileno.Elastômeros de copolímero de etileno-propileno que possam conter não mais de 5% peso de unidades total polímero derivado 5-metileno-2-Norborne e/ou 5-ethylidine-2-Norborne.Copolímero de etileno-propileno-dicyclopentadiene.Etileno-propileno-1, 4-hexadiene copolímeros contendo não mais do que 8 por cento das unidades total polímero derivados de 1 peso, hexadiene-4.Hydrogenated butadiene/acrylonitrile copolymers (CAS Reg. No. 88254-10-8) produced when acrylonitrile/butadiene copolymers are modified by hydrogenation of the olefinic unsaturation to leave either: (1) Not more than 10 percenttrans olefinic unsaturation and no [alpha], [beta]-olefinic unsaturation as determined by a method entitled "Determination of Residual [alpha], [beta]-Olefinic and Trans Olefinic Unsaturation Levels in HNBR," developed October 1, 1991, by Polysar Rubber Corp., 1256 South Vidal St., Sarnia, Ontario, Canada N7T 7MI; or (2) 0.4 percent to 20 percent olefinic unsaturation and Mooney viscosities greater than 45 (ML 1 + 4 @ 100 deg. C), as determined by ASTM Standard Method D1646-92, "Standard Test Method for Rubber--Viscosity and Vulcanization Characteristics (Mooney Viscometer)," which are both incorporated by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies of these methods may be obtained from the Office of Food Additive Safety (HFS-200), Center for Food Safety and Applied Nutrition, Food and Drug Administration, 5100 Paint Branch Pkwy., College Park, MD 20740, 240-402-1200, or may be examined at the Center for Food Safety and Applied Nutrition's Library, 5100 Paint Branch Pkwy., College Park, MD 20740, or 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. A copy of ASTM Standard Method D1646-92 may also be obtained from the American Society for Testing and Materials, 100 Barr Harbor Dr., West Conshohocken, PA 19428-2959.Isobutylene-isoprene copolymer.Polyamide/polyether block copolymers (CAS Reg. No. 77402-38-1 prepared by reacting a copolymer ofomega -laurolactam and adipic acid with poly(tetramethylene ether glycol). The polyamide and polyether components are reacted in ratios such that the polyamide component constitutes a minimum of 30 weight-percent of total polymer units. The copolymers may be used in contact with foods of Types I, II, III, IV, V, VI, VII, VIII, and IX identified in table 1 of 176.170(c) of this chapter at temperatures not to exceed 150 deg. F except that those copolymers prepared with less than 50 weight-percent of polyamide are limited to use in contact with such foods at temperatures not to exceed 100 deg. F.Polybutadiene.Polyester elastomers derived from the reaction of dimethyl terephthalate, 1,4-butanediol, and [alpha]-hydro-omega-hydroxypoly (oxytetramethylene). Additionally, trimethyl trimellitate may be used as a reactant. The polyester elastomers may be used only in contact with foods containing not more than 8 percent alcohol and limited to use in contact with food at temperatures not exceeding 150 deg. F.Polyisoprene.Polyurethane resins (CAS Reg. Nos. 37383-28-1 or 9018-04-6) derived from the reaction of diphenylmethane diisocyanate with 1,4-butanediol and polytetramethylene ether glycol.Polyurethane resins derived from reactions of diphenylmethane diisocyanate with adipic acid and 1,4-butanediol.Rubber, natural.Silicone basic polymer as described in ASTM method D1418-81, "Standard Practice for Rubber and Rubber Latices--Nomenclature," 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.Silicone (Si) elastomers containing methyl groups.Silicone (Psi) elastomers containing methyl and phenyl groups.Silicone (Vsi) elastomers containing methyl and vinyl groups.Silicone (Fsi) elastomers containing methyl and fluorine groups.Silicone (PVsi) elastomers containing phenyl, methyl, and vinyl groups.Styrene-butadiene copolymer.Vinylidene fluoride-hexafluoropropylene copolymers (minimum number average molecular weight 70,000 as determined by osmotic pressure in methyl ethyl ketone).Vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene copolymers (minimum number average molecular weight 100,000 as determined by osmotic pressure in methyl ethyl ketone).(ii)Vulcanization materials --(a )Vulcanizing agents.4,4'-Bis(aminocyclohexyl)methane carbamate for use only as cross-linking agent in the vulcanization of vinylidene fluoridehexafluoropropylene copolymer and vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene copolymer elastomers identified under paragraph (c)(4)(i) of this section and limited to use at levels not to exceed 2.4 percent by weight of such copolymers.
Diisopropyl xanthogen polysulfide (a 1:2:1 mixture of O,O-di(1-methylethyl)trithio-bis-thioformate, O,O-di(1-methylethyl)tetrathio-bis-thioformate, and O,O-di(1-methylethyl)pentathio-bis-thioformate) for use as a cross linking agent in the vulcanization of natural rubber, styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, and ethylene-propylene terpolymers identified under paragraph (c)(4)(i) of this section and limited to use at levels not to exceed 2.4 percent by weight of such copolymers.

Hexamethylenediamine carbamate for use only as cross-linking agent in the vulcanization of vinylidene fluoride-hexafluoropropylene copolymer and vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene copolymer elastomers identified under paragraph (c)(4)(i) of this section and limited to use at levels not to exceed 1.5 percent by weight of such copolymers.

Sulfur, ground.

(b )Accelerators (total not to exceed 1.5 percent by weight of rubber product).

2-Benzothiazyl-N,N -diethylthiocarbamyl-sulfide.

Benzoyl peroxide.

1,3-Bis(2-benzothiazolylmercaptomethyl) urea.

N-tert- Butyl-2-benzothiazole sulfenamide.

Butyraldehyde-aniline resin (iodine number 670-705).

Carbon disulfide-1,1'-methylenedipiperidine reaction product.

Copper dimethyldithiocarbamate.

N- Cyclohexyl-2-benzothiazole sulfenamide.

Dibenzoyl-p- quinone dioxime.

Dibenzylamine.

Diisopropyl xanthogen polysulfide (a 1:2:1 mixture of O,O-di(1-methylethyl)trithio-bis-thioformate, O,O-di(1-methylethyl)tetrathio-bis-thioformate, and O,O-di(1-methylethyl)pentathio-bis-thioformate).

Di (4-methylbenzoyl) peroxide (CAS Reg. No. 895-85-2) for use only as a crosslinking agent in silicone polymers and elastomers identified under paragraph (c)(4)(i) of this section at levels not to exceed 1 percent by weight of such polymers and elastomers where the total of all accelerators does not exceed 1.5 percent by weight of rubber product.

Di-tert- butyl peroxide.

Dibutyl xanthogen disulfide.

2,4-Dichlorobenzoyl peroxide.

Dicumyl peroxide.

N,N- Dimethylcyclohexylamine salt of dibutyldithiocarbamic acid.

2,6-Dimethylmorpholine thiobenzothiazol.

Dipentamethylenethiuram hexasulfide (CAS Reg. No. 971-15-3).

Diphenylguanidine.

Diphenylguanidine phthalate.

1,3-Diphenyl-2-thiourea.

2,2'-Dithiobis[benzothiazole].

4,4'-Dithiodimorpholine.

N,N'- Di-o- tolylguanidine.

Di-o- tolylguanidine salt of pyroc

Resultados (Português) 3:

Code of federal regulations [][21] título, Volume 3[novo] a partir de 1 de Abril de 2013[quote]: 21cfr177.2600Título 21 - alimentos e drogasCapítulo I - - administração de alimentos e drogasDepartamento de saúde e serviços HumanosCapítulo B - alimentos para consumo Humano (continuação)Parte 177 - indirecto, aditivos alimentares: polímerosSubparte C - substâncias para utilização Como Componentes de artigos destinados a utilização repetidaSec.Artigos de BORRACHA 177.2600 destinados a utilização repetida.Artigos de BORRACHA destinados a utilização repetida Pode ser utilizado com segurança Na produção, fabricação, embalagem, processamento, preparação, tratamento, acondicionamento, transporte, ou esconder comida, sob Reserva Das disposições Da presente secção.(a) OS artigos de BORRACHA são preparados a partir de polímeros sintéticos e naturais E / ou adjuvantes substâncias descritas Na alínea C) do presente capítulo.B) a quantidade de qualquer substância utilizada Na produção de BORRACHA artigos destinados a utilização repetida não deve exceder o montante razoavelmente necessários para alcançar o Efeito desejado Na BORRACHA do artigo e não deve ser destinado a realizar qualquer Efeito Na comida.C) substâncias utilizadas Na preparação de artigos de BORRACHA, inclui o seguinte, sob Reserva de quaisquer limitações previstas:(1) substâncias geralmente reconhecido Como Seguro para USO EM alimentos ou embalagens de alimentos.(2) as substâncias utilizadas EM conformidade com as disposições de UMA sanção ou aprovação prévia.(3) substâncias que, pelo regulamento no 170 por 189 partes Deste capítulo Pode ser usado com segurança EM artigos de BORRACHA, sob Reserva Das disposições desse regulamento.(4) substâncias identificadas no parágrafo (c) (4), desde que qualquer substância que é objecto de um regulamento EM partes, 174, 175, 176, 177, 178 e 179.45 Deste capítulo está EM conformidade com as especificações no regulamento.(I) OS elastómeros.Acrilonitrilo - butadieno copolímero.Copolímeros de isobutileno - isopreno com cumprimento 177.1210.Acrilonitrilo - butadieno - etileno - glicol dimetacrilato de copolímeros contendo não Mais De 5%, EM Massa, de polímeros de etileno glicol dimetacrilato de unidades derivadas.- acrilonitrilo - butadieno copolímero de ácido metacrílico.Butadieno - estireno - copolímero de ácido metacrílico.Cloropreno polímeros.Copolímero de clorotrifluoretileno - fluoreto de vinilideno.Copolímero de etileno e propileno elastômeros que não Pode conter Mais De 5% do Peso total de unidades derivadas Das 5 - metileno - 2-norbornene E / Ou 5 - - ethylidine 2-norbornene.Etileno - propileno - diciclopentadieno copolímero.Etileno - propileno - 1,4 - hexadiene copolímeros contendo não Mais de 8% do Peso total de unidades derivadas de 1,4 - hexadiene.Copolímeros de acrilonitrilo - butadieno hidrogenado / (CAS reg.No 88254 - 10 - 8) - acrilonitrilo butadieno produzida quando modificados por hidrogenação / copolímeros olefínicos insaturação de IR embora: (1) não superior a 10 percenttrans olefinic insaturação e não [Alfa], [OS] - olefinic insaturação, conforme determinado por um método intitulado "determinação de resíduos [Alfa], [beta olefínicos] - e trans olefinic insaturação níveis, HNBR," desenvolvido por Volta de 1 de outubro de 1991, Polysar rubber Corp., 1256 Sul Vidal St., Sarnia, ontário, canadá n7t 7mi; ou (2) 0.4% para 20% olefinic insaturação e Mooney (viscosidades superiores a 45 ml 1 + 4 @ 100 Graus C) determinada pelo método ASTM standard d1646 - 92 ", método de teste padrão para vulcanização de BORRACHA a viscosidade e características (viscosímetro Mooney)OS dois, que são incorporados por referência, de acordo com 5 U.S.C. 552 (a) and 1 CFR Part 51.Cópias desses métodos podem ser obtidas no escritório do aditivo alimentar, segurança (HFS - 200), Centro para segurança alimentar e nutrição aplicada, administração de alimentos e drogas, 5100 paint branch Pkwy., College Park, MD 20740, 240 402 - 1200, ou podem ser examinados no Centro para segurança alimentar e nutrição aplicada TEM Biblioteca, 5100 paint branch Pkwy., College Park, MD 20740, Ou no arquivo Nacional e Records Administration (Nara).Para informações sobre a disponibilidade Deste material EM Nara, telefone 202 - 741 - 6030, ou acesse: http: / / www.archives.gov / _ Federal Register / code of federal regulations _ _ _ IBR / _ locations.html.UMA cópia Da Norma ASTM standard method d1646 - 92 também Pode ser obtido a partir Da American Society for testing and materials, 100 Barr harbor Dr, West Conshohocken, PA 19428-2959.Isobutileno - isopreno copolímero.Poliamida / poliéster copolímeros de Bloco (CAS reg.No. 77402 - 38 - 1 preparado por reação de um copolímero ofomega - laurolactam e ácido adípico com poli (tetrametileno - éter - glicol).A poliamida e poliéster, OS Componentes são tais que OS rácios reagiu EM poliamida componente constitui um mínimo de 30% do total de unidades de peso.OS copolímeros podem ser utilizados EM contacto com alimentos DOS tipos I, II, III, IV, V, VI, VII, VIII e IX do 176.170 identificados no Quadro 1 (c) do presente capítulo, a temperatura não superior a 150 Graus F, exceto que OS copolímeros preparado com Menos de 50%, EM Massa, de poliamida são limitadas para utilização EM contacto com OS alimentos a temperaturas