ASTM D R_信息与通信_工程科技_专业资料。Designation: D – 05 (Reapproved ) Standard Test Method for Film. ASTM A/AM Steel, Sheet and Strip, Heavy-Thickness Coils, Hot- Rolled, Carbon, Commercial, Drawing, Structural, High-Strength Low-Alloy. ASTM: D ECCA: T4. BS EN: ISO: JIS: K Standard supply includes: Pencil Hardness Tester Block. Set of 20 pencils (9B to 9H).
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Vegetable oil-based polyesters N. Other advances include antimicrobial and anti-smudge screens. This test method is especially useful in developmental work and in production control testing in a single laboratory. The panels used, the curing conditions, and the age of the coating prior to the test shall be within the limits agreed upon between the purchaser and the seller.
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If this test method is used as a basis for purchase agreement, maximum precision will be achieved if a given set of referee pencils be agreed upon between the purchaser and the seller. The process is started with the hardest pencil and continued down the scale of hardness to either of two end points: The modification of polyester resins based on cotton seed oil, linseed oil, soybean oil and sunflower oil with vinyl toluene to improve clarity is also described in the literature.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
This test method has also been used to determine the d363 of these coatings, especially when forced astm d 05 using heat. This test method is especially useful in developmental work and in production control testing in a single laboratory. This compressive state is much stronger than unstressed glass and can also be induced chemically by ion exchange on the surface.
This standard has been approved for use by agencies of the Department of Defense. It should be recognized that the results obtained may vary between different laboratories when different pencils as well as panels are used. Summary of Test Method 3. Even though surface-modified nanoparticles are utilized in nanocomposite hard coatings, coatings often result in poor scratch resistance if nanoparticles are not homogenously distributed in the hybrid matrix.
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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. For example, Brinell Hardness HB test is expressed by the pressure loaded on the press mark per unit area. It adtm suggested that the length of the stroke be 6.
ASTM D3363 – 05 PDF
Thus, properly formulated biobased astm d 05 along with other flexible resin-based thermosets are very good binders for paints and coatings. Every effort should be made to standardize the hardness of the lead used and the technique followed. Buy x Banner Ads. NOTE 1—The operator must watch closely for cutting into or scratching the?
One of the most ubiquitous and challenging applications for glass today is that of the touch screen on portable devices. Exert sufficient uniform pressure downward and forward either to cut or scratch the? Historical Version s – view previous versions of standard.
ASTM D – 05()e2 Standard Test Method for Film Hardness by Pencil Test
Every effort should be made to standardize the hardness of the lead used and the technique followed. Test Specimens and Conditions 6. This service is not available if you are a URL user where you do not log in with an email address.
If this test method is used as a basis for purchase agreement, maximum precision will be achieved if a given set of referee pencils be agreed upon between the purchaser and the seller.
This test method has also been used to determine the cure of these coatings, especially when forced dried using heat. The scratch hardness of such thermosets depends on the overall toughness, whereas gloss is influenced by dimensional stability and smoothness of the surface; generally, they are found to be good.
A number in parentheses indicates the year of last reapproval. TiN coatings astm d 05 had good adhesion 50 the substrate. Historical Version s — view previous versions of standard. Starting with the hardest lead, hold the pencil or lead holder?