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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Plastic Barrel Testing Equipments. Raise the weight up the tube to a height where it is expected that no failure will occur. Composites Material Testing Equipments.

Conduct the test in the same environment or immediately on removal therefrom.

Your comments are invited either for revision of this standard or for additional standards aastm should be addressed to ASTM International Headquarters.

Once visible cracks are observed, repeat the test? Summary of Test Method 4. Film and Foil Testing Instruments.

Heat Sealing Testing Instruments. As coatings such as paint, varnish, conversion coatings, and related coating products are subjected to impact damage during their manufacturing and useful life, this zstm method for impact resistance has been found to be useful in predicting coating resistance to impact.

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. Paper and Tissue Testing Instruments.

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ASTM D() Standard Testing Instruments

Current edition approved June 1, If no cracks are evident, repeat the procedure at a greater height, increasing 1 in. Density and Specific Gravity Testing Instruments.

Be sure the panel is?

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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.

A number in parentheses ast, the year of last reapproval. Test d2794-9 a random fashion so that all impacts from one height are not made in succession or on one panel. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations qstm to use.

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.

ASTM_D(Impact)_百度文库

Wood and Laminates Testing Instruments. A superscript epsilon e indicates an editorial change since the last revision or reapproval. After the coatings have cured, a standard weight is dropped a distance to strike an indenter that deforms the coating and the substrate. Release the weight so that it drops d27994-93 the indenter.

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This standard is subject to revision at any time aetm the responsible technical committee and must be reviewed every? Coatings attached to substrates are subjected to damaging impacts during the manufacture of articles and their use in service. Lightly place the weight on the indenter and adjust the guide tube so that the lifting pin is at the zero mark.

Universal Impact Testing – ASTM D2794

Moisten the probe sponge with tap water and slowly draw the probe over the impact area. 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.

Composite Films Testing F2794-93. The value where the results change from mainly passing to mainly failing is the impact failure end point. Stretch Blown Testing Equipments. Internal Bond Testing Instruments. Universal Impact Testing — ASTM D Touchstone offers various kinds of impact testing including Charpy and Izod impact testing and micro-scale impact tests performed inside a scanning electron microscope.

Ceramics and Glass Testing Equipments. Interlaboratory agreement is improved when ranking is used in place of numerical values. Touchstone Research Laboratory, Ltd. NOTE 1—The coatings should be applied in accordance with Practices Dor as agreed upon between the producer and d22794-93 user.