REFERENCE BLOCK TYPE 2

Description

REFERENCE BLOCK TYPE 2

PENETRANT PERFORMANCE ASSESSMENT BLOCKS


ISO 3452-3: 2013

ISO 3452-3: 2013 describes two types of reference blocks - Type 2 reference blocks are for routine assessment of DPI system performance. 

Reference block type 2 is made from stainless steel plated with a layer of nickel then a hard Chromium alloy. Five star-shaped defects of ranging from 3.0 to 5.5mm diameters have then been artificially produced in this layer with the five defects uniformly placed according to their sizes. To assess washability* reference block type 2 includes four adjacent patches with roughnesses of R = 2.5μm, 5μm, 10μm and 15μm. With the smallest defect being located next to the area showing the smallest roughness.

Supplied with all relevant paperwork.

*Washability is the visual assessment of excess penetrant removal.

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