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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This accelerated exposure usually produces an exaggerated change in appearance which would be seen under natural conditions only in abnormal product.
Reagents for Humidity Vessel in Oven d361 7. Originally approved in Include no more sample rolls than will displace one fourth of the air volume in the vessel. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. A number in parentheses indicates the year of last reapproval.
The extent of change for one physical property should be expected to be different than for another property and so would also relate to different natural aging time. D Terminology of Packaging and Distribution Environments.
While this practice was developed using packaging type tapes, its use on other types of tape with similar construction is encouraged. If you ast that your comments have not received a r3611 hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
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 moderate midcontinent, USA.
It is not intended for use on electrical grade tapes see Test Methods D An abnormal product lot may cause differences in testing response that throw off the expected time patterns. NOTE 1—The environment for this practice cannot occur unless the vessel used as the environment container is vented adtm that pressure differences between the inside and the outside of the vessel can be balanced.
While this practice was developed using packaging type tapes, its use on other types of tape with similar construction is encouraged.
Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Aging reduces this inherent variability between specimens for some types of tape and some tests. This standard has been approved for use by agencies of the Department of Defense.
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 may require 24 or 48 h for some materials.
Include no more sample rolls than will displace one fourth of the air volume in the chamber Link to Active This link will always route to the current Active version of the standard.
ASTM D 压敏胶带的加速老化试验_百度文库
This reduces salt deposition and crystalline build-up. Therefore this conditioning does not always cause an increase in dispersion. 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.
It is superimposed on the variability inherent in performance of the subsequent physical property test for which this conditioning was preparatory. 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 R3611 7.
It is an effect due to the small differences that occur in performing any astn of a process. A different type of tape could yield data comparable to more or less than that time period. Unless otherwise indicated, it is intended that all reagents shall conform to the speci? Appearance of normal tape product will usually change only slightly on two years natural aging.
This means that a measurement of precision for a physical property test on tape always has as one of its components the inherent variability between tape specimens. Historical Version s – view previous versions of standard. The vessel must meet the following requirements: 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. Current edition approved Oct. Use separators that allow free air space around and between the rolls and which are non-hygroscopic.
ASTM D – 89() Standard Practice for Accelerated Aging of Pressure-Sensitive Tapes
These small differences result in slightly different aging of the tape from time to time. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
Summary of Practice 4. It is applicable to tape in roll form when the user observes the precautions detailed within the procedure.
ASTM D3611 – 06(2011)
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. This solution within the closed vessel both provides and controls the moisture content humidity within the vessel.
It is applicable to tape in roll form when the user observes the precautions detailed within the procedure. It is not intended for use on electrical grade tapes see Test Methods D