BS EN ISO 3452-3:2013 pdf free

BS EN ISO 3452-3:2013 pdf free.Non-destructive testing一Penetrant testing一Reference test blocks
BS EN ISO 3452-3 describes two types of reference blocks:
一Type 1 reference blocks are used to determine the sensitivity levels of both fluorescent and colour contrast penetrant product families;
一Type 2 reference blocks are used for routine assessment of the performance of both fluorescent and colour contrast penetrant testing.
The reference blocks are to be used in accordance with part 1 of this International Standard.
2 Normative references
The following referenced documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 10088-1, Stainless steels一Part 1: List of standard stainless steels
EN 10204, Metallic products一Types of inspection documents
ISO 4957, Tool steels
ISO 10474, Steel and steel products一Inspection documents
ISO 15510, Stainless steels一Chemical composition
The Type 1 reference block consists of a set of four nickel-chrome plated panels with 10 μum, 20 um,30 μm and 50 μm thickness of plating, respectively. The 10 μum, 20 um, 30 μm and 50 μm panels can be used for determination of the sensitivity of fluorescent penetrant systems. The sensitivity of colour contrast penetrant systems is determined using the 30 μm and 50 μm panels.
The Type 2 reference block consists of a single panel of which one half has been plated with electroless nickel and a thin layer of chromium and the other half prepared to achieve areas of specific roughness.The plated side exhibits five star- shaped discontinuities.
The Type 1 panels are rectangular in shape with typical dimensions of 35 mm x 100 mm x 2 mm (see Figure 1). Each panel consists of a uniform layer of nickel-chromium plated on to a brass base, the thickness of nickel-chromium being 10 μm, 20 um, 30 μm and 50 μm respectively. Transverse cracks are made in each panel by stretching the panels in the longitudinal direction. The width to depth ratio of each crack should be approximately 1:20.BS EN ISO 3452-3 pdf download.