Chloroform soluble extractives
Web( c) The finished food-contact article, when extracted at reflux temperatures for 2 hours with the following four solvents, yields net chloroform-soluble extractives in each extracting solvent not to exceed 0.02 milligram per square inch of food-contact surface: distilled water, 50 percent (by volume) ethyl alcohol in distilled water, 3 percent … Webpresent study includes soluble extractive values and physicochemical analysis of bark of Sesbania .sesban . EXPERIMENTAL SECTION Method recommended in …
Chloroform soluble extractives
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WebMelamine-formaldehyde resins may be safely used as the food-contact surface of molded articles intended for use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food in … WebDescription: Net chloroform soluble extractives for water fraction, for 8% alcohol fraction, for 50% alcohol fraction, and for n-heptane alcohol fraction Method: 21 CFR 176.170 …
WebChloroform fraction of alcohol extractives 1. Plasticized polymers, including unvulcanized or vulcanized or otherwise cured natural and synthetic rubber … WebJan 17, 2024 · (2) The net acidified chloroform-soluble extractives from paper and paperboard complying with § 176.170 of this chapter may be corrected for wax, petrolatum, and mineral oil as provided in §...
Web (1) Specifications. Chloroform-soluble extractives shall not exceed 0.2 milligram/inch 2 of food -contact surface when... (2) Conditions of use. The plastics are intended for: WebGC-MS analysis of the chloroform soluble and insoluble fractions was also used. Accelerated Solvent Extraction (ASE) 110 °C, Soxhlet, and autoclave extraction techniques were used to obtain...
Webwith the extractives limitations pre-scribed in paragraph (c) of this section: Provided, That the components of the food-contact surface consist entirely of one or more of the substances identi-fied in this paragraph: And provided fur-ther, That if the paper or paperboard when extracted under the conditions prescribed in paragraph (c) of this sec-
WebNet chloroform soluble extractives from 8 percent alcohol PASS 3. Net chloroform soluble extractives from n-heptane PASS Remark:Test results in this report are applicable for the item tested and reflects the tested sample as received. Signed for and on behalf of SGS (Thailand) Limited Rutchuporn Moungsom ... hl. kassianWebDISCLAIMER: Data and information released from the Standards Incorporated by Reference databases at NIST are provided on an "AS IS" basis, without representation or warranty of any kind, including without limitation the warranties of merchantability, fitness for a particular purpose and non-infringement. hlk automationWebJan 10, 2024 · GC-MS analysis of the chloroform soluble and insoluble fractions was also used. Accelerated Solvent Extraction (ASE) 110 °C, Soxhlet, and autoclave extraction techniques were used to obtain extractives from untreated and thermally modified (THM) chestnut wood (170 °C for 3 h). hlkihWebChloroform extract does not necessarily represent toxic molecules but potentially harmful stuff. Secondly chloroform extraction is analytical chemist friendly- after extraction the … hl kilpailutWebThe oxidation occurred mainly on the polar fraction of the extractives, and then, the solubility in chloroform increased by 12.3%. When the extraction was performed in the autoclave, MoO3 was able to induce an oxidative depolymerization of wood with the consequent increase in the extractives amount. hl kievietWebchloroform-soluble extractives in each extracting solvent not to exceed 0.5 milligram per square inch of food-con-tact surface when tested by the meth-ods described in … hl. katharina von sienaWebchloroform for a long period damages the brain, liver and kidneys. It may cause cancer. Drinking water with chloroform over a long period damages the liver and kidneys. It may … hlk automation tool