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Reproducibility Limit, R— Comparing two test results for the same material, obtained by different operators using different equipment in different laboratories. This test method is a modification of the Food and Drug Administration FDA procedure qstm determining hexane extractables of polyolefins. NOTE 34—Care must be exercised when cutting the samples to avoid ragged edges on the specimen.
Where no current ASTM standard exists, however, this guide gives procedures for the separation or identification, or both, of specific contaminants.
ASTM D5227 – 13
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An American National Standard Designation: NOTE 23—The level of water in the bath must be kept at least 2 cm above the level of the solvent in the kettle to ensure the temperature equilibrium. Need more than one copy? This test method is based upon the presumption that the weight of the residue extract present in the solvent is equal to the amount extracted from the film sample and could therefore be quantified by measuring the weight loss of the extracted film, eliminating the complex and time-consuming evaporation process described in 21 CFR It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Repeatability Limit, s5227 Comparing two test results for the same material, obtained by the same operator using the same equipment on the same day. If the document is revised or amended, you will be notified by email.
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ASTM D – pdf全文-调研报告-在线文档
It is applicable to resins containing greater than 0. This guide lists existing ASTM and ISO methods plus currently practiced industrial techniques for identification and classification of contaminants in recycled plastics flake or pellets. This test method is based upon the presumption that the weight of the residue extract present in the solvent is equal to the amount extracted from the film sample and could therefore be quantified by measuring the weight loss of the extracted film, eliminating the complex and time-consuming evaporation process described in 21 CFR If the temperature exceeds these limits, the test must be discontinued and restarted.
This ashm may also include descriptions of the changes or reasons for the changes, or both. The FDA protocol also states the temperature of the contents must be brought to Techniques to separate and identify incompatible plastics, moisture, chemicals, or original product residues, and solid contaminants such as metals, paper, glass, and wood are essential to the processing of recycled plastic materials.
Standards Subsctiption may be the perfect solution. For the convenience of the user, Committee D20 has highlighted those changes that may impact the use of this test method. Recycled plastic materials may contain incompatible plastic or other undesirable contaminants that could affect the processing or quality, or both, of the plastic prepared for reuse.
Already Subscribed to this document. Note 1 — There is no known ISO equivalent to this standard. D — Replace the kettle head with condenser column.
A number in parentheses indicates the year of last reapproval. Each test result was an individual determination. Current edition approved June 10, In all cases only the current version of the standard as published by ASTM is to be considered the official document. It is the responsibility of the user sstm this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Because it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate.
This test method provides a means to determine the amount of hexane-soluble low molecular weight material present d55227 polyolefins. Please first log atsm with a verified email before subscribing to alerts.
Note 1—There is no known ISO equivalent to this standard. Originally published as D — The two test results should be judged not equivalent if they differ by more than the r value for that material.
Standard Test Method for Measurement of Hexane Extractable Content of Polyolefins
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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The following explanations of r and R You may delete a document from your Alert Profile at any time. Position the kettle so that the center bottle of the kettle is sitting on a submersible stirrer.
Historical Version s – view previous versions of standard. The materials were supplied by one laboratory. Extract for 2 h. Your Alert Profile lists the documents that will be monitored. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.