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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The tolerances for this procedure shall be as follows: 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?
ASTM D – 13 Standard Practice for Conditioning Plastics for Testing
Standard Procedures for Conditioning Prior to Test 8. To ensure substantial equilibrium under normal conditions of humidity and temperature, however, may require from 20 to days or more depending upon thickness and type of material and its previous history.
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ASTM D618 – Standard Practice for Conditioning Plastics for Testing
Precision and Bias Procedures for maintaining close tolerances are described 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. Work Item s – proposed revisions of this standard.
Tests at Normal Temperatures 9. 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. 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.
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. Table 1 in Classi? Start the tests immediately and complete them as soon as possible. Specimens should only be removed from the water as the tests are ready to be conducted.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Additional measurements shall be made throughout the area to show compliance to the temperature and relative humidity required. 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.
A number in parentheses indicates the year of last reapproval. Temperature and relative humidity tolerances shall be in accordance with Section 3, unless otherwise speci?
This practice defines procedures for conditioning plastics although not necessarily to equilibrium prior to testing, and the conditions under d6188 they shall be tested. Designations for Conditioning 7. November 1, 1 Added Note Shorter conditioning times may be used for thin specimens provided equilibrium is substantially obtained.
Consequently, conditioning for reproducibility must of necessity be used for general purchase awtm and product control tests. Last previous edition approved in as D – Historical Version s – view previous versions of standard. Link to Active This link will always route to the current Active version of the standard.
Tests at Other Standard Test Temperatures d6118 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.
NOTE 11—A considerable number of other procedures that might be considered as functional are outlined in Practice D D Specification for Laminated Thermosetting Materials. In such cases enclosures with circulating air should be used.
ASTM D – CONDITIONING PLASTICS
Other enclosures, desiccants, or desiccating techniques may be used that produce and maintain an atmosphere equivalent to that over anhydrous ashm chloride. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
Consequently, conditioning for reproducibility must of necessity be used ast general purchase speci? It is the responsibility of the user of this standard to establish appropriate safety aatm health practices and determine the applicability of regulatory limitations prior to use.
Selection of Conditioning Procedure 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.
ISO describes only two temperature and humidity conditions for conditioning or testing, or both.
Refer to the material specification before using this practice. Current edition approved November 1, 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. Originally approved in