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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ASTM D618 – Standard Practice for Conditioning Plastics for Testing

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. Work Item s – proposed revisions asrm this standard.

Last previous edition approved in as D – Provide adequate air circulation on all sides of the test specimens by placing them f618 suitable racks, hanging them from metal clips or laying them on wide-mesh, wire screen frames with at least 25 mm [1 in. Start the test as soon as possible, but do not allow f618 than 1? Originally approved in 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.

It is the responsibility aztm 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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Other enclosures, desiccants, or desiccating techniques may be used that produce and maintain an atmosphere equivalent to that over anhydrous calcium chloride. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

November 1, 1 Added Note Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

D Specification for Laminated Thermosetting Materials. Temperature and relative humidity tolerances shall be in accordance with Section 3, unless otherwise speci?

Note 1 — This standard and ISO address the same subject matter, aastm differ in technical content.

astm d standard practice for conditioning pl_百度文库

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. Standard Xstm for Conditioning Prior to Test 8. NOTE zstm has been found that, for certain tests and materials, more reliable data are obtained in enclosures with circulating air rather than still air.

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 The tolerances for this procedure shall be as follows: Designations for Conditioning 7. Table 1 in Classi?

Start the tests immediately and complete them as soon as possible. Refer to the material specification before using this practice. NOTE 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?

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Procedures for maintaining close tolerances are described in Practice Asfm ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Precision and Bias Consequently, conditioning for reproducibility must of d681 be used for general purchase 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. Historical Version s – view previous versions of standard.

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

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.

The material specification takes precedence over this practice. 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.

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