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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ASTM D2794 – 93(2010)
Heat Sealing Testing Instruments. After the coatings have cured, a standard weight is dropped a distance to strike an indenter that deforms the coating and the substrate. The base is constructed so that a thin? Conduct the test in the same environment or immediately on removal therefrom.
The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Universal Impact Testing — ASTM D Touchstone offers various kinds of impact d2794-933 including Charpy and Izod impact testing and micro-scale impact tests performed inside a scanning electron microscope.
ASTM D() Standard Testing Instruments
NOTE 1—The coatings should be applied in accordance with Practices Dor as agreed upon between the producer and the user.
Compound Resin Testing Equipments.
The indentation can be either an intrusion or an extrusion. Plastic Bottles Testing Instruments. Of course, these confirmation tests are conducted in a random order so successive tests are not conducted at the same height or on the same panel. Ceramics and Glass Testing Equipments.
Components Material Testing Equipments. We also built a six-foot tall tester for custom testing. Thickness Measurement Testing Instruments. Injection Molding Adtm Equipments. Current edition approved June 1, Lightly place the weight on the indenter and adjust the guide tube so that the lifting pin is at the zero mark.
Interlaboratory agreement is improved when ranking is used in place of numerical values. Interlaboratory agreement is improved when ranking is used in place of numerical values. ASTM D provides a procedure for rapidly deforming by impact a coating film and its substrate and for evaluating the effect of such axtm deformation.
Films generally fail by cracking see bottom photowhich is made more visible by the use of a magnifier, by the application of a copper sulfate CuSO4 solution on steel, by the use of a pin hole detector, or by a tape-pull test to determine the amount of coating removed.
Composites Material Testing Equipments. If no cracks are evident, repeat the procedure at a greater height, increasing 1 in. NOTE 3—The copper sulfate solution will not perform properly on zinc-phosphate-treated metal unless the conversion coating cracks. Rigid Plastic Testing Equipments.
Air Permeability Testing Instruments. Medical Product Testing Instruments. Place the test panel in the apparatus with the coated side either up or down as speci? Food and Beverages Testing Equipments.
Referenced Documents purchase separately The xstm listed below are referenced within the subject standard but are not provided as part of the standard. Touchstone Research Laboratory, Ltd. Electronics and Electrical Testing Equipments.
Flexible Packaging Testing Equipments. Summary of Test Method 4. Plastic Rope Testing Equipments. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Ink and printability Testing Instruments.
Universal Impact Testing – ASTM D2794
Coatings attached to substrates are subjected to damaging impacts during the manufacture of articles and ast, use in service. A number in parentheses indicates the year of last reapproval. Paper and Tissue Testing Instruments. 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.
The value where the results d294-93 from mainly passing to mainly failing is the impact failure end point. Adhesive Label Testing Instruments. For interlaboratory comparisons, rankings of coatings for f2794-93 resistance should be reported. Water Vapor Permeability Testing Instruments. Originally approved in Raise the weight up the tube to a height where it is expected s2794-93 no failure will occur.
NOTE 4—Because of the poor reproducibility of this method, the reporting of inch-pounds kilogram-metres in comparing coatings for impact resistance should be restricted to one laboratory. Test in a random fashion so that all impacts from one height are not made in succession or on one panel. 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.