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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A number in parentheses indicates the year of last reapproval. This standard has been approved for use by agencies of the Department of Defense.
ASTM D3363 – 05 PDF
The values xstm in parentheses are for information only. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ISO Determination of? Summary of Test Method 3.
The pencil is held? The process is started with the hardest pencil and continued down the scale of hardness to either of two end points: Current edition approved June 1, Originally approved in Last previous edition approved in as D — This test method has also been used to determine the cure of these coatings, especially when forced dried using heat. It should be recognized that the results obtained may vary between different laboratories when different pencils as well as panels are used. Every effort should be made to standardize the hardness of astn lead used and the technique followed.
Test Specimens and Conditions 6. 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. For wood pencils, see Fig.
ASTM D – 05()e2 Standard Test Method for Film Hardness by Pencil Test
For mechanical pencil holders with drawing leads, see Fig. The desired edge may be obtained by cementing the abrasive paper to a?
Starting with the d33663 lead, hold the pencil or lead holder? Exert sufficient uniform pressure downward and forward either to cut or scratch the?
It is suggested that the length of the stroke be 6. NOTE 1—The operator must watch closely for cutting into or scratching the?
Checks should be made by close visual inspection and by? NOTE 2—In conducting the test, if e3363 sharp edge of the lead is slightly chipped or crumbled, the lead must be resharpened. Precision and Bias 9. Any defacement of the? Record each end point if applicable for gouge and scratch hardness see 8. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
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ASTM D – 05 Standard Test Method for Film Hardness by Pencil Test
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