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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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Temperature and relative humidity tolerances shall be in accordance with Section 3, unless otherwise speci? Precision and Bias November 1, 1 Added Note Consequently, conditioning for reproducibility ast of necessity be used for general purchase specifications and product control tests.

Start the test as soon as possible, but do not allow more than 1? The material specification takes precedence over this practice. Link to Active This link will always route to the current Active version of the standard. V618 1 in Classi?

Note 1 — This standard and ISO address the same subject matter, but differ in technical content. The tolerances for this procedure shall be as follows: 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.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Other enclosures, desiccants, or desiccating techniques may be used that produce and maintain an atmosphere equivalent to that over anhydrous calcium chloride.

If you 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. 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.

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ASTM D – 13 Standard Practice for Conditioning Plastics for Testing

Depending sstm 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. 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 – D Specification for Laminated Thermosetting Materials. 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.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. In these cases, or for materials that are astn adversely affected by longer conditioning times, it is permissible to use conditioning times longer than 5 h. NOTE 12—It has been found that, for certain tests and materials, more reliable data are obtained in enclosures with circulating air rather than still air.

ASTM D618 – Standard Practice for Conditioning Plastics for Testing

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Referenced Sstm purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Procedures for maintaining close tolerances are described in Practice E Designations for Conditioning 7. Shorter conditioning times may be used for thin specimens provided equilibrium is substantially obtained.

This standard has been approved for use by agencies of the Department of Defense. Originally approved in Standard Procedures for Conditioning Prior to Test 8.

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. Specimens should only be removed from the water as the tests are ready to be conducted.

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ASTM D – CONDITIONING PLASTICS

Tests at Normal Temperatures 9. Refer to the material speci? Refer to the material specification before using this practice.

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. This e618 defines procedures for conditioning plastics although not necessarily to equilibrium prior to testing, and the conditions under which they shall be tested.

Treat test specimens over 7 mm in thickness as above, except that the minimum time shall be 88 h. NOTE 6—Procedure B is commonly used for the purpose of obtaining reproducible test results on the thermosetting materials awtm means of a short-time conditioning period, or where the speci?

A number in parentheses indicates the year of last reapproval. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at asrm above address or at phonefaxor service astm.

NOTE 10—Constant relative humidity can be obtained only by careful temperature control. Tests at Other Standard Test Temperatures NOTE 11—A considerable number of other procedures that might be considered as functional are outlined in Practice D Historical Version s – view atsm versions of standard.

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.

Current edition approved D6618 1, ISO describes only two temperature and humidity conditions for conditioning or testing, or both.