Product Description

elcometer-501-pencil-hardness-tester-200

The Elcometer 501 Pencil Hardness Tester, also referred to as the Wolff-Wilborn test, uses the varying hardness values of graphite pencils to evaluate a coating’s hardness. The Elcometer 501 Pencil Hardness Tester has been designed to ensure that the cylindrical pencil lead is maintained at a constant angle of 45° and exerts a force of 7.5N (1.68lbF).  The pencil lead, prepared beforehand using the special sharpener and abrasive paper, is inserted into the Elcometer 501 hardness tester and pushed over the smooth, flat coated surface. The lowest hardness value of the pencil which marks the coating determines the coating’s hardness rating.
The Elcometer 501 Wolff-Wilborn Pencil Hardness Tester can be used in accordance with:

  • ISO 15184
  • ASTM D 3363
  • BS 3900-E19
  • ECCA T4
  • EN 13523-4

 

Specifications

Elcometer 501 Wolff-Wilborn Pencil Hardness Tester – Specifications

Part Number Description
H501—-1 Elcometer 501 Pencil Hardness Tester
Dimensions (with Pencils) 130 x 130 x 50mm
Weight 2.1kg
Certificate available Certificate of Calibration: issued for Fixed Calibration equipment and shows readings and traceability.


Elcometer 501 Wolff-Wilborn Pencil Hardness Tester
Packing List:

  • Elcometer 501 Pencil Hardness Tester
  • Pencil set (14 pencils, grades 6B – 6H)
  • Positioning block
  • x2 pencil sharpener
  • Abrasive paper block
  • Carry case
  • Operating instructions

Data Sheet

Elcometer 501 Pencil Hardness Tester – Data Sheet

Elcometer 501 Pencil Hardness Tester Data Sheet

Standards

Elcometer 501 Wolff-Wilborn Pencil Hardness Tester – Standards

The Elcometer 501 Wolff-Wilborn Pencil Hardness Tester can be used in accordance with:

  • ISO 15184
  • ASTM D 3363
  • BS 3900-E19
  • ECCA T4
  • EN 13523-4

Standards not in bold have been superseded but are still recognised in some industries

Accessories

Elcometer 501 Wolff-Wilborn Pencil Hardness Tester – Accessories

Part Number Description
T501190451 Pencil Sharpener (6H to 2B)
T501190452 Pencil Sharpener (3B to 6B)
T50115771 Set of 14 Pencils (6B to 6H)
KT003080P001 12 Hardness Pencils (6B)
KT003080P002 12 Hardness Pencils (5B)
KT003080P003 12 Hardness Pencils (4B)
KT003080P004 12 Hardness Pencils (3B)
KT003080P005 12 Hardness Pencils (2B)
KT003080P006 12 Hardness Pencils (B)
KT003080P007 12 Hardness Pencils (HB)
KT003080P008 12 Hardness Pencils (F)
KT003080P009 12 Hardness Pencils (H)
KT003080P010 12 Hardness Pencils (2H)
KT003080P011 12 Hardness Pencils (3H)
KT003080P012 12 Hardness Pencils (4H)
KT003080P013 12 Hardness Pencils (5H)
KT003080P014 12 Hardness Pencils (6H)

 

Instruction Manual

Elcometer 501 Pencil Hardness Tester – Instruction Manual

Elcometer 501 Pencil Hardness Instruction Manual