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The TQC Pencil Hardness Test according Wolff Wilborn provides in a simple method to test the scratch hardness of coatings. In this test, pencils in a range of 6B to 8H hardness-grade are used. The pencil is moved scratching over the surface under a 45° angle with a constant pressure. Then an optical assessment is carried out to see which pencil hardness damages the surface. Delivered with a set of 20 Koh-i-noor pencils and a pencil sharpener. The models differ in load on the pencil tip (in grams). This differs per standard. MODELS AVAILABLE TO ORDER 
Model 750g - Art. Nr. VF2378 Most commonly used. Complies with: ISO 15184, ASTM D3363, JIS K-5600, ECCA-T4-1, BS 3900-E19, SNV 37113, SIS 184187, NEN 5350, MIL C 27 227, EN 13523-4 Model 500 g -Art. Nr. VF2379 There is no standard applicable however the film industry and the LCD industry have their own standard (regulation) to inspect with the load of 500g based on the text of JIS-K5600 
Model 750g and 1000g - Art. Nr. VF2377 Special version with two weights Complies with: ISO 15184, ASTM D3363, JIS K-5400, JIS K-5600, ECCA-T4-1, BS 3900-E19, SNV 37113, SIS 184187, NEN 5350, MIL C 27 227, EN 13523-4
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PENCIL SHARPENER FOR PENCIL HARDNESS TEST PENCILS VF1003 Sharpener with special cut blade for use with the Pencil Hardness Test according Wolff Wilborn pencils. This pencil sharpener complies with ISO 15184 by leaving the cylindrical pencil head intact. |
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PENCILS FOR HARDNESS TEST ACCORDING WOLFF WILBORN VF1000 Koh-I-Noor 1500 set of 20 pencils in an aluminum case to use with the Wolff Wilborn Hardness Test. Pencils ranging from 8b to 10H (8B, 7B, 6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H, 3H, 4H, 5H, 6H, 7H, 8H, 9H, 10H) The ISO 15184 standard refers to this Koh-i-noor 1500 pencil set. Standards: ASTM D3363 |
DOWNLOAD Datasheet PENCIL HARDNESS TEST ACC. WOLFF WILBORN 
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