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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Procedures for maintaining close tolerances are described in Practice E Selection of Conditioning Procedure Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Tests at Other Standard Test Temperatures Consequently, conditioning for reproducibility must of necessity be used for general purchase specifications and product control tests.
In these cases, or aztm materials that are not adversely affected by longer conditioning times, it is permissible to use conditioning times longer than 5 h.
A number in parentheses indicates the year of last reapproval. If you feel that your comments have not received a axtm hearing you should make your views known to the ASTM Committee on Standards, at the address shown c618. Your comments will receive careful consideration at a meeting d6118 the responsible technical committee, which you may attend.
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. Start the tests immediately and complete them as soon as possible.
November 1, 1 Added Note Temperature and relative humidity tolerances shall be in accordance with Section 3, unless otherwise speci? Standard Procedures for Conditioning Prior to Test 8. 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.
Table 1 in Classi?
Hold the specimens at the test temperature for no more than 5 h prior to test, and in no case for less than the time required to ensure thermal equilibrium. 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. Consequently, conditioning for reproducibility must of necessity be used for general purchase speci?
The material specification takes precedence over this practice. Current edition approved November 1, Work Item s – proposed revisions of this standard. Depending on the thickness, type of material and its previous history, it is possible that it would take 20 to days or more to ensure substantial equilibrium under normal conditions of humidity and temperature. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Precision and Bias Tests at Normal Temperatures 9. NOTE 10—Constant relative humidity can be obtained only by careful temperature control. Other enclosures, desiccants, or desiccating techniques may be used that produce and maintain an atmosphere equivalent to that over anhydrous calcium chloride. 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.
Historical Version s – view previous versions of standard. Note 1 — This standard and ISO address the same subject matter, but differ in technical content.
D Specification for Laminated Thermosetting Materials.
Originally approved in Additional measurements shall be made throughout the area to show compliance to the temperature and relative humidity required. Refer to the material specification before using this practice.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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.
The tolerances for this procedure shall be as follows: In such cases enclosures with circulating air should be used. NOTE 12—It has been found that, for certain tests and materials, more reliable data are obtained in enclosures dd618 circulating air rather than still air. Last previous edition approved in as D – Link to Active This link will always route to the current Active version of the standard.
Shorter conditioning times may be used for thin specimens provided equilibrium is substantially obtained.