Designation: D – 02 Standard Test Methods for Measuring Adhesion by Tape Test1 This standard is issued under the?xed designation D. ASTM D Uploaded by. Leonardo Gonçalves. Loading Preview. Sorry, preview is currently unavailable. You can download the paper by clicking the. ASTM D Pull Off Test Standard. Uploaded by. vlong ASTM D MEK Test (Zinc Test). Uploaded by. vlong ASTM D Eng Cross-cut.
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When making successive single cuts with the aid of a guide, place the guide on the uncut area. D — 02 results with the adhesion rating s. asttm
Because of the variability in adhesion strength from batch-to-batch and with time, it is essential that tape from the same batch be used when tests are to be run in different laboratories. Do not attempt to deepen a previous asmt as this may affect adhesion along the incision.
As Mittal 1 12 has pointed out, the answer is both yes and no.
Procedure for X-CUT TAPE TEST METHOD-ASTM D3359-02
These effects are related as they re? The values given in parentheses are for information only. Last previous edition D — The color under the transparent tape is a useful indication of when good contact has been made. For tests in the? The conditions and time of exposure will be governed by ultimate coating use qstm shall be agreed upon between the purchaser and seller.
NOTE 5—If desired or speci? If this is not possible the test method should be used only for ranking a series of test coatings.
It aatm 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 assumed that coating removal occurs when the tensile force generated along the latter interface, which is a function of the rheological properties of the backing and adhesive layer materials, is greater than the bond strength at awtm coating-substrate interface or cohesive strength of the coating.
Current edition approved Aug. A given lot may surpass these 335-02 and thus be suitable for general market distribution; however, such a lot may be a source of serious and unexpected error in assessing adhesion.
Precision and Bias 9. For tests in the field, ensure that the surface is clean and dry. More importantly, in this instance the test is being applied beyond its intended scope.
For coatings on soft substrates, issues include how deep should this cut penetrate, and is it possible to cut only to the interface? It is not unexpected that different operators might obtain different results 7, 8. Dhave advised this subcommittee that the properties of these tapes were changed.
Discard cutting tools that develop nicks or other defects that tear the film. One supplier 3539-02 has assisted in the re? The limited scale of 0 to 5 was selected deliberately to avoid a false impression of being sensitive.
The intra- and inter-laboratory precision of this test method is similar to other widely-accepted tests f coated substrates for example, Test Method D and Test Method Dbut this is partly the result of it being insensitive to all but large differences in adhesion.
For large structures make sufficient tests to ensure that the adhesion evaluation is representative of the whole surface. It is of particular importance that the cutting edges be in good condition.
Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend. The color under the tape is a useful indication of when good contact has been made. Cohesive failure within the coating? There generally is difficulty, however, 33559-02 relating these tests to basic adhesion phenomena. Then dry or prepare the surface, or both, as agreed upon between the purchaser and the seller. Apparatus and Materials Remove an additional length at a steady that is, not jerked rate and cut a piece about 75 mm 3 in.
astm d – 02 standard test methods for_百度文库
This standard has been approved for use by agencies of the Department of Defense. But this, in fact, is not their purpose.
To ensure good contact with the? Flaking and detachment worse than Grade 1. It is reasonable to state that at the present time no test exists that can precisely assess the actual physical strength of an adhesive bond.