ASTM D897 PDF

Bazahn NOTE 1—Cohesive failure may be obtained by observing how much of the failure has occurred in the adhesive itself. Forces up to 10 kN 2, lbf Low force tabletop systems Modular series of five frame options with adjustable test space Affordable testing option for tension, compression, bend, peel and much more. The values given in parentheses are for information only. Start test loading of the specimen as quickly as possible. Originally published as D — Describe the method of obtaining the thickness of the adhesive layer including procedure, location of measurements, and range of measurements. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

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A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

This standard has been approved for use by agencies of the Department of Defense. Unless otherwise agreed upon by the manufacturer and the purchaser, the bonding conditions shall be prescribed by the manufacturer of the adhesive. In order to ensure that complete information is available to the individual conducting the tests, the manufacturer of the adhesive shall furnish numerical values and other speci?

It should be stated whether this temperature is that of the bond line, or of the atmosphere at which the assembly is to be maintained. A range may be prescribed for any variable by the manufacturer of the adhesive if it can be assumed by the test operator that any arbitrarily chosen value within such a range or any combination of such values for several variables will be acceptable to both the manufacturer and the purchaser of the adhesive.

Scope 1. The values given in parentheses are for information only. It is the responsibility of the user of this standard to establish appro1 This test method is under the jurisdiction of ASTM Committee D14 on Adhesives and is the direct responsibility of Subcommittee D Current edition approved Oct.

Published December Originally published as D — Last previous edition D — Referenced Documents 2. Terminology 3. However, it does have application as a discriminator in determining variations in adherend surface preparation parameters and adhesive environmental durability. The test method has found applications in controlling surface preparations, primer, and adhesive systems for determining strength properties of tested systems.

Apparatus 5. Use the self-aligning type. The grips shall be attached to the? While the design of grips of this type is optional, one that has been found satisfactory is shown in Fig.

Test Specimens 6. Reuse of the specimens is allowed by resurfacing those surface areas that contained the adhesive. Do this by grinding the adhesive-faced surface? Metals conforming to the following ASTM speci? Test a substitute specimen to replace the discarded result. It is preferable to grind all metal specimens at the same time. Adhesive 7. Procedure 8. Start test loading of the specimen as quickly as possible.

This will be based on a visual inspection. NOTE 1—Cohesive failure may be obtained by observing how much of the failure has occurred in the adhesive itself. That is, if the cement has adhered to the metal test pieces and no voids are visual, it represents a percent cohesive failure. Adhesion failure refers to the lack of adhering to metals being fastened. Contact failure refers to lack of glue lines being in contact due to uneven surfaces, poor pressure distribution, etc.

Report Describe the method of obtaining the thickness of the adhesive layer including procedure, location of measurements, and range of measurements. Precision and Bias Keywords Calculations 9. Express the result in grams per square millimetre pounds per square inch and if possible report to three signi? The ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

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. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone , fax , or service astm.

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