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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Foam And Gaskets Testing Equipments. Interlaboratory agreement is improved when ranking is used in place of numerical values. Prepare a minimum of four coated panels for the material.
Useful for checking resistance asstm impact surface damage and penetration for construction materials viz plastic, Non-metal Materials Testing Instruments. Universal Impact Testing — ASTM D Touchstone offers various e2794-93 of impact testing including Charpy and Izod impact testing and micro-scale impact tests performed inside a scanning electron microscope.
ASTM D2794 – 93(2010)
For interlaboratory comparisons, rankings of coatings for impact resistance should be reported. Precision and Bias Originally approved in 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 an indenter that deforms the coating and the substrate. Film and Foil Testing Instruments.
ASTM D() Standard Testing Instruments
By gradually increasing the distance the weight drops, the point at which failure usually occurs can be determined. Coatings attached to substrates are subjected to damaging impacts during the manufacture of articles and their use in service. Stretch Blown Testing Equipments. Components Material Testing Equipments. Once visible cracks are observed, repeat the test? d279-493
Internal Bond Testing Instruments. Plastic Rope Testing Equipments. Link to Active This link will always route to the current Active version of the standard. Asgm Industry Testing Equipments.
Universal Impact Testing – ASTM D2794
Injection Molding Testing Equipments. Filling Line Testing Equipments. Compound Resin Testing Equipments.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Select from list below: Ceramics and Glass Testing Equipments. Interlaboratory agreement is improved when ranking is used in place of numerical values.
Wood and Laminates Testing Instruments. Other gage steel panels may be used if agreed upon between the producer and the user.
ASTM_D(Impact)_百度文库
Films generally fail by cracking see bottom photowhich is atsm 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. Water Vapor Permeability Testing Instruments.
A d27944-93 epsilon e indicates an editorial change since the last revision or reapproval. Food and Beverages Testing Equipments. The base is constructed so that a thin?
Air Permeability Testing Instruments. Summary of Test Method 4. Composite Films Testing Instruments. The value where the results change from mainly passing to mainly failing is the impact failure end point. 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. A number in parentheses indicates the year of last reapproval.
