Testador de dureza de lápis de mesa LR-G016
Pencil hardness test, também conhecido como “Wolff – Wilborn” experiment, to evaluate the coating with a different hardness value of graphite pencil hardness.
Precision design ensures that the cylinder of the pencil lead can keep unchanged in a 45 ° Angle, and maintaining a constant pressure.
Can leave a mark on the coating hardness value is the smallest pencil can determine the coating hardness level.
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- Investigação
Descrição
Testador de dureza de lápis de mesa LR-G016
Usar
Pencil hardness test, também conhecido como “Wolff – Wilborn” experiment, to evaluate the coating with a different hardness value of graphite pencil hardness.
Precision design ensures that the cylinder of the pencil lead can keep unchanged in a 45 ° Angle, and maintaining a constant pressure.
Can leave a mark on the coating hardness value is the smallest pencil can determine the coating hardness level.
Testador de dureza de lápis de mesa LR-G016
Conform to the standard
GB/T 6739 paint and varnish, paint film hardness pencil method.
| pen point load | 1000 g |
| Tamanho externo | 430x160x280 mm |
| Peso | 15 kg |
The packing list
Desktop pencil hardness tester
A balance weight
1000 grams
6 b – HB – h pencil, 13
