ASTM D Practice for Conditioning Plastics for Testing. ASTM D EMSL book · Materials Testing Lab Services Guide · Products. Sample Reports. ASTM D – 13 Practice for Conditioning Plastics for Testing – Download as PDF File .pdf), Text File .txt) or read online. ASTM standard – Practice for. ASTM D Standard Practice for Conditioning Plastics for Testing.
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Standard Procedures for Conditioning Prior to Test 8. To ensure substantial equilibrium under normal conditions of humidity and temperature, however, may require from 20 to days or more depending upon thickness and type of material and its previous history.
November 1, 1 Added Note Refer to asm material specification before using this practice. V618 6—Procedure B is commonly used for the purpose of obtaining reproducible test results on the thermosetting materials by means of a short-time conditioning period, or where the speci? Procedures for maintaining close tolerances are described in Practice E Additional measurements shall be made throughout the area to show compliance to the temperature and relative humidity required.
Start the test as soon as possible, but do not allow more than 1? Specimens should only be removed from the water as the tests are ready to be conducted.
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D Specification for Laminated Thermosetting Materials. NOTE 11—A considerable number of other procedures that might be considered as functional are outlined in Practice D The tolerances for this procedure shall be as follows: Referenced Documents ast, separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Work Item s – proposed revisions of this standard.
ASTM D618 – Standard Practice for Conditioning Plastics for Testing
Link to Active This link will always route to the current Active version of the standard. Consequently, conditioning for reproducibility must of necessity be used for general purchase specifications and product control tests. If you feel that your comments have not received v618 fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Shorter conditioning times may be used for thin specimens provided equilibrium is substantially obtained. Tests at Other Standard Asmt Temperatures Selection of Conditioning Procedure Current edition approved November 1, Last previous edition approved in as D – In such cases enclosures with circulating air should be used.
NOTE 10—Constant relative humidity can be obtained only by careful temperature control. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Start the tests immediately and complete them as soon as d681. Individual reprints single or multiple copies of this standard may be obtained d6188 contacting ASTM at the above address or at phonefaxor service astm.
ASTM D Practice for Conditioning Plastics for Testing
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In order that reliable comparisons may be made of different materials and between different laboratories, it is necessary to standardize the humidity conditions, as well as the temperature, to which specimens of these materials are subjected prior to and during testing. NOTE 8—It has been found that, for certain tests and materials, more reliable data are obtained in enclosures with circulating air rather than still air. Provide adequate air circulation on all sides of the test specimens by placing them in suitable racks, hanging them from metal clips or laying them on wide-mesh, wire screen frames with at least 25 mm [1 in.
When use of acid or salt solutions has a deleterious effect on materials being tested, use glycerin solutions in accordance with Practice D to control relative humidity.