Doran Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Historical Version s — view previous versions of standard. This is like the variability in any test method that we commonly term its precision. Summary of Practice 4. D reduces salt deposition and crystalline build-up.
|Published (Last):||18 February 2008|
|PDF File Size:||10.37 Mb|
|ePub File Size:||13.63 Mb|
|Price:||Free* [*Free Regsitration Required]|
Doran Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Historical Version s — view previous versions of standard. This is like the variability in any test method that we commonly term its precision.
Summary of Practice 4. D reduces salt deposition and crystalline build-up. ASTM D — 06 — Standard Practice for Accelerated Aging of Pressure-Sensitive Tapes It is superimposed on the variability inherent in performance of the subsequent physical property test for which this conditioning was preparatory.
An abnormal product lot may cause differences in testing response that throw off the expected time patterns. Appearance of normal tape product will usually change only slightly on two years natural aging. Aging reduces this inherent variability between specimens for some types of tape and some tests. 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.
This variation does not appear as something we can measure directly on its own. For example, a given type of tape a speci? D Terminology of Packaging and Distribution Environments. It is applicable to tape in roll form when the user observes the precautions detailed within the procedure. 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.
Include no more sample rolls than will displace one fourth of the qstm volume in the vessel. A different type of tape could yield data comparable to more or less than that time period.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Therefore this conditioning does not always cause an increase in dispersion. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? It is not intended for use on electrical grade tapes asym Test Methods D Current edition approved Oct.
This accelerated exposure usually produces an exaggerated change in appearance which would be seen under natural conditions only in abnormal product. Last previous edition approved in as D — 89 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.
This standard has been approved for use by agencies of the Department of Defense. Use separators that allow asttm air space around and between the rolls and which are non-hygroscopic. A number in parentheses indicates the year of last reapproval. This solution within the closed vessel both provides asrm controls the moisture content humidity within the vessel. 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: 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.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Atm is applicable to tape in roll form when the user observes the precautions detailed within the procedure. The extent of change for one physical property should be expected to be different than asstm another property and so astk also relate to different natural aging time.
Asstm otherwise indicated, it is intended that all reagents shall conform to the speci? This accelerated exposure usually produces an exaggerated change in d which would be seen under natural conditions only in abnormal product. Users of this standard are expressly advised that determination of the validity v any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Include no more sample rolls than will displace one fourth of the air volume in the chamber It is an effect due to the small differences that occur in performing any step of a process. While this practice was developed using packaging type tapes, its use on other types of tape with similar construction is encouraged.
Referenced Documents purchase separately The documents listed below are referenced within the subject ast, but are not provided as part of the standard. The environment in the vessel is dependent on careful observation of the requirements of loading in relationship to vessel volume d liquid surface area in accordance with Section 7.
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. Related Posts
ASTM D3611 PDF
The procedure is intended to simulate unwind tape either with a human hand, or with a tool or machine. This test is similar to ASTM D, however it is much simpler and designed to unroll the tape at low speeds. Several outer layers of tape should be unwound and discarded before beginning this test. Geometry: Rolls of tape are tested at a standard 1 inch thickness.
ASTM D3611 - 06(2011)