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Reference Block No.1 (DIN EN ISO 9934-2)
Specifications
The reference block No.1 is a disc with 2 types of natural cracks at the surface. Coarse cracks are the result of polishing, fine cracks are the result of stress corrosion. The block is magnetized permanently by a through-hole central conductor. Control of magnetic particle suspensions is carried out by visual or other suitable methods for comparison of indications.
Characteristics:
- Sample Diameter: 50 mm
- Sample Height: 10 mm
- Crack Width: 2-10 µm