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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This test method has also been used to determine the cure of these coatings, especially when forced dried using heat. This test method has also been used to determine x3363 cure of these coatings, especially when forced dried using heat. Other advances include antimicrobial and anti-smudge screens.
It is the responsibility of the user x3363 this standard to establish appropriate safety and astm d 05 practices and determine the applicability of regulatory limitations astm d 05 to use. The process is started with the hardest pencil and continued down the scale of hardness to either of two end points: ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Work Item s – proposed revisions of this standard. NOTE 1—The operator must watch closely for cutting into or scratching the?
This test method has also been used to determine the cure of these coatings, especially when forced astm d 05 using heat. It is the responsibility of the user of this standard asstm establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 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.
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. Referenced Documents purchase separately The asfm listed f3363 are referenced within the subject standard but are not provided as part of the standard.
Texture is connected with characteristics, processing degrees, construction methods, and the types and elevation styles of buildings. Set of 20 pencils 9B to 9H.
This compressive state is much stronger than unstressed glass and f3363 also be induced chemically by ion exchange on the surface. It should be recognized that the results obtained may vary between different laboratories when different pencils as well as panels are used. Originally approved in Summary of Test Method 3.
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. If you feel that your comments have d363 received a fair hearing you should make your views known to the ASTM Committee on Satm, at the address shown below. Pencil scratch testing device. The alkyl ammonium ions present in the organoclay are most probably responsible for dd catalytic acceleration of the curing reaction.
ASTM D – 05 Standard Test Method for Film Hardness by Pencil Test
A A Astm d 05 Asym Collection. NOTE 2—In conducting the test, if the sharp edge of the lead is slightly chipped or crumbled, the lead must 50 resharpened. Permission rights to photocopy the standard may also be secured from the ASTM website www.
Precision and Bias 9. Adhesive strength with different substrates is also good, although the value is relatively less than that of bisphenol-A-based glycidyl ether epoxy.
Historical Version s — view previous versions of standard. Significant improvement in the drying time and weather resistance properties of dehydrated castor oil-based polyester resin was obtained by graft copolymerisation with methyl methacrylate and butyl methacrylate.
Exert sufficient uniform pressure downward and forward either to cut or scratch the? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
The holder has to be placed on coated surface and wheels are held between fingers and the body is rested over asrm sample.
ASTM D3363 – 05 PDF
It should be recognized that the results obtained may vary between different laboratories when asstm pencils as well as panels are used. Any defacement of the? Pencil hardness measurements have been used by the coatings industry for many years to determine the hardness of clear and pigmented organic coating films. The desired edge may be obtained by cementing the abrasive paper to a?
For mechanical pencil holders with drawing leads, see Fig.