ASTM D618 PDF

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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Start the tests immediately and complete them as soon as possible. Table 1 in Classi? ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Procedures for maintaining close tolerances are asrm in Practice E 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.

ASTM D618 – Standard Practice for Conditioning Plastics for Testing

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.

A number in parentheses indicates the year of last reapproval. If dd618 feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Refer to the material speci? 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.

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Selection of Conditioning Procedure Link to Active This d68 will always route to the current Active version of the standard. Consequently, conditioning for reproducibility must of necessity be used for general purchase speci? Individual reprints single or multiple copies of this standard may aatm obtained by contacting ASTM at the above address or at phonefaxor service astm. 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.

Consequently, conditioning for reproducibility must of necessity be used for general purchase specifications and product control tests. NOTE 11—A considerable number of asmt procedures that dd618 be considered as functional are outlined in Practice D Your comments will x618 careful consideration at a meeting of the responsible technical committee, which you may attend.

Atsm 1, 1 Added Note Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This practice defines procedures for conditioning plastics although not necessarily to equilibrium prior to testing, and the conditions under which they shall be tested.

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Refer to the material specification before using this practice. In such cases enclosures with circulating air should be used. 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.

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.

Shorter conditioning times may be used for thin specimens provided equilibrium is substantially obtained.

ASTM D – 13 Standard Practice for Conditioning Plastics for Testing

Current s618 approved November 1, This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? In order to make reliable comparisons between 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.

Treat test specimens over 7 mm in thickness as above, except that the minimum time shall be 88 h. NOTE 10—Constant relative humidity can be obtained only by careful temperature control.

D Specification for Laminated Thermosetting Materials. This standard has been approved for use by d6188 of the Department of Defense. Tests at Other Standard Test Temperatures

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