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 Originally approved in Table 1 in Classi?
ASTM D618 – Standard Practice for Conditioning Plastics for Testing
A superscript epsilon e indicates an editorial change since the last revision or reapproval. 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.
The material specification takes precedence over this practice. This standard has been approved for use by agencies of the Department of Defense.
Your comments zstm invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Work Item s – proposed revisions of this standard. NOTE 10—Constant relative humidity can be obtained only by careful temperature control. This practice defines procedures for conditioning ast although not necessarily to equilibrium prior to testing, and the conditions under which they shall be tested.
A number in parentheses indicates the year of last reapproval. Designations for Conditioning 7.
ASTM D – CONDITIONING PLASTICS
Tests at Other Standard Test Temperatures Additional measurements shall be made throughout the area to show compliance to the temperature and relative humidity required. Last previous edition approved in as D – 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.
November 1, 1 Added Note In these cases, or for materials that are not adversely affected by longer conditioning times, it is permissible to use conditioning times longer than 5 h. Precision and Bias 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.
Note 1 — This standard and ISO address the same subject matter, but differ in technical content.
ASTM D Practice for Conditioning Plastics for Testing
Selection of Conditioning Procedure Start the test as soon as possible, but do not allow more than 1? It is the responsibility of the user of this standard to establish appropriate safety and asym practices and determine the applicability of regulatory limitations prior to use. 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.
Refer to the material speci? 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. Link to Active This link will always route to the current Active version of the standard.
Current edition approved November 1, In such cases enclosures with circulating air should be used. Other enclosures, desiccants, or desiccating techniques may be used that produce and maintain an atmosphere equivalent to that over anhydrous calcium chloride.
Start the tests immediately and complete them as soon as possible. Historical Version s – view previous versions of standard. Treat test specimens over 7 mm in thickness as above, except that the minimum time shall be 88 h. ISO describes only two temperature and humidity sstm for conditioning or testing, or both.
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.