ASTM D ). 2. SIGNIFICANCE. This method accelerates natural aging of . ASTM D SUMMARY OF CHANGES. No changes from the 14th edition. Designation: D – 06 Standard Practice for Accelerated Aging of Pressure- Sensitive Tapes1 This standard is issued under the?xed. A summary of ASTM standards relating to pressure sensitive tape is attached. D (), includes the year of the last revision () and the year of.
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Appearance of normal tape product will usually change only slightly on two years natural aging. This standard has been approved for use c3611 agencies of the Department of Defense. It is not intended for use on electrical grade tapes see Test Methods D This accelerated exposure usually produces an exaggerated change in appearance which would be seen under natural conditions only in abnormal product. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
It is applicable to tape in roll form when the user observes the precautions detailed within the procedure. For example, a given type of tape a speci? We do not expect this superimposed added variability effect to be great. This practice accelerates the natural aging of pressure-sensitive tapes so that the response to the usual physical property tests changes to the same extent as with an exposure to approximately two years of natural aging when compared with the response to tests before aging.
There is no present experience to relate this accelerated exposure to responses of tape in applications where the tape is under a use stress. This variation does not appear as something we can measure directly on its own.
ASTM D – 89() Standard Practice for Accelerated Aging of Pressure-Sensitive Tapes
Referenced Documents purchase separately The documents listed d36111 are referenced within the subject standard but are not provided as part of the standard. Include no more sample rolls than will displace one fourth of the air volume in the chamber It is superimposed on the variability inherent in performance of the subsequent physical property test for which this conditioning was preparatory.
NOTE 1—The environment for this practice asym occur unless the vessel used as the environment container is vented so that pressure differences between the inside and the outside of the vessel can be balanced. For instance, when repeating this conditioning one might not set the temperature exactly the same or the atmospheric pressure might vary or the purity of the salt might differ xstm different vendors.
This is like the variability in any test method that we commonly term its precision.
Link to Active This link will always route to the current Active version of the standard. Summary of Practice 4.
Since it is seen as a change in the apparent variability of the physical property test results, we can relate it to the expected precision of the test by making the following statement: It is not intended for use on electrical grade tapes see Test Methods D Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
The practice does not provide for a conclusion within itself, but is for use in conjunction with appearance or physical property tests to follow the accelerated exposure. The practice does not provide for a conclusion within itself, but is for use in conjunction with appearance or physical property tests to follow the accelerated exposure. Therefore this conditioning does not always cause an increase in dispersion. An abnormal product lot may cause differences in testing response that throw off the expected time patterns.
This reduces salt deposition and crystalline build-up.
ASTM D3611 – 06(2011)
Use a volume the units asrm be cubic centimetres of water not less than that obtained by multiplying times times the vessel air volume in cubic metres.
The environment in the vessel is dependent on careful observation of the requirements of loading in relationship to vessel volume and liquid surface area in accordance with Section 7. It is an effect due to the small differences that occur in performing any step of a process. Reagents for Humidity Vessel in Oven procedure 7. Aging reduces this inherent variability between specimens for some types of tape and some tests. While this practice was developed using packaging type tapes, its use on other types of tape with similar construction is encouraged.
The vessel must meet the following requirements: It is the responsibility of the user of this standard to asstm appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Immediately remove the sample rolls from the assembly.