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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While this practice was developed using packaging type tapes, its use on other types of tape with similar construction is encouraged.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. 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.
Use a volume ast, units will be cubic centimetres of water not less than that obtained by multiplying times times the vessel air volume in cubic metres.
It is an effect due to the small differences that occur in performing any step of a process. This may require 24 or 48 h for some materials.
ASTM D3611 – 06(2011)
It is not intended for use on electrical grade tapes see Test Methods D 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.
While this practice was developed using packaging type tapes, its use on other types of tape with similar construction is encouraged. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Use separators that allow free air space around and between the rolls and which are non-hygroscopic. We do not expect asym superimposed added variability effect to be great.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. The extent of change for one physical property should be expected to be different than for asym property and so would sstm relate to different natural aging time.
D Terminology of Packaging and Distribution Environments. 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 from different vendors. Appearance of normal zstm product will usually change only slightly on two years natural aging.
Therefore this conditioning does not always cause an increase in dispersion.
ASTM D – 89() Standard Practice for Accelerated Aging of Pressure-Sensitive Tapes
Originally approved in Last previous edition approved in as D — 89 Natural aging in this context means a continuous period of aging of tape in a closed fibreboard container in darkness in the variable climate of either the warm moist south, the warm dry southwest or the dd3611 midcontinent, USA. This is like the variability in any test method that we commonly term asstm precision.
Immediately remove the sample rolls from the assembly. This standard has been approved for use by agencies of the Department of Defense.
ASTM D 压敏胶带的加速老化试验_百度文库
This variation does not appear as something we can measure directly on its own. An illustration of this can be made with the peel adhesion test.
Summary of Practice 4. This means that a measurement of precision for a physical property test on tape always has as one of x3611 components the inherent variability between tape specimens.
Unless otherwise indicated, it is intended that all reagents shall conform to the speci?
This practice accelerates the natural aging of pressure-sensitive tapes so that the aetm 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.
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 not intended for use on electrical grade tapes see Test Methods D The practice does not provide for a conclusion within itself, but is for use in conjunction with appearance atm physical property tests to follow the accelerated exposure.
This solution within the closed vessel both provides and controls the moisture content humidity within the vessel. NOTE 1—The environment for this practice cannot 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.
Current edition approved Oct. Link to Active This link will always route to the current Active version of the standard. 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: If you feel that your comments have not received a fair hearing you should make your axtm known to the ASTM Committee on Standards, at aastm address shown below.
These small differences result in slightly different aging of the tape from time to time.