ASTM D2794-93 PDF

Designation: D – 93 (Reapproved ) Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation. Buy ASTM D() Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact) from SAI Global. Purchase your copy of ASTM D – 93() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards.

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The head rests on the test panel and the punch is held vertically by a guide ring.

ASTM D() Standard Testing Instruments

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. By gradually increasing the distance the weight asm, generally 1 inch 25 mm at a time, the point at which failure usually occurs can be determined.

Other gage steel panels may be used if agreed upon between the producer and the user. Films generally fail by cracking, which is made more visible by the use of a magni? Heat Sealing Testing Instruments. Components Material Testing Equipments. A number in parentheses indicates the year of last reapproval.

Wood and Laminates Testing Instruments. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Link to Active This link will always route to the current Active version of the standard.

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ASTM D2794 – 93(2010)

Foam And Gaskets Testing Equipments. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Marble Floor Tiles Testing Instruments. Density and Specific Gravity Testing Instruments. Touchstone Research Laboratory, Ltd.

ASTM_D(Impact)_百度文库

Coatings attached to substrates are subjected to damaging impacts during the manufacture of articles and their use in service. Plastic Bottles Testing Instruments. 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.

Historical Version s – view previous versions of standard. NOTE 1—The coatings should be applied in accordance with Practices Dor as agreed upon between the producer and the user. The indentation can be either an intrusion or an extrusion. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Interlaboratory agreement is improved when ranking is used in place of numerical values.

In its use over many years, this test method for impact resistance has been found to be useful in predicting the performance of organic coatings for their ability to resist cracking caused by impacts. Stretch Blown Testing Equipments. Be sure the panel is?

Touchstone offers various kinds of impact testing including Charpy and Izod impact testing and micro-scale impact tests performed inside a scanning electron microscope. Footwear Industry Testing Equipments. If no cracks are evident, repeat the procedure at a greater height, increasing 1 in.

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Historical Version s – view previous d2974-93 of standard Translated Version s: Place the test panel in the apparatus with the coated side either up or down as speci?

Your comments will receive careful consideration at a d2794-993 of the responsible technical committee, which you may attend. An impact test which is useful for testing paint and coating adhesion is ASTM D, the drop test performed on a universal impact tester see top photo. Water Vapor Permeability Testing Instruments. Medical Product Testing Instruments.

Universal Impact Testing – ASTM D2794

The value where the results change from mainly passing to mainly failing is the impact failure end point. Select from list below: NOTE 3—The copper sulfate solution will not perform properly on zinc-phosphate-treated metal unless the conversion coating adtm.

Once visible cracks have been identified, the test is repeated five times at that level, as well as five times above and below that level. After the coatings have cured, a standard weight is dropped a distance to strike c2794-93 indenter that deforms the coating and the substrate.

Current edition approved June 1, Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone ashm, faxor service astm. Tearing Resistance Testing Instruments.