جهاز اختبار صلابة قلم الرصاص المكتبي GA-6015
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اختبار صلابة قلم الرصاص
امتحان معيار
جيجابايت/ت 6739 paint and varnish, paint film hardness pencil method.
يستخدم
Pencil hardness test, also known as “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.
المعلمة
| pen point load | 1000 ز |
| الحجم الخارجي | 430x160x280 mm |
| وزن | 15 كلغ |
صacking list
Desktop pencil hardness tester
A balance weight :1000 grams
6 ب – HB – h pencil, 13
