Test Blocks

IIW Type 1:  Calibration of shear and longitudinal transducers; and for determining shear wedges exit point and refracted angle.

IIW Type 2:  Modified version of IIW Type 1 with 2.0” radius and additional holes for resolution comparison.

Type DC: Shear wave distance calibration. Contains 1.0” and 2.0” radius.

Type SC: Shear wave sensitivity shear wave calibration. Contains two .062” side drilled holes.

AWS Resolution Block:  Used for determining capabilities of angle beam (shear wave) transducers.

Type DSC:  Shear wave distance and sensitivity calibration.  Also used for verification of sound exit point on wedge and refracted angles.

IOW Beam Profile Block:  Beam profile measurement of angle beam (shear wave) transducers.

Step Blocks: Thickness and linearity claibration for longitudinal transducers.

NAVSHIPS Test Block: Used for sensitivity, distance amplitude, and flaw depth information.  Conforms to NAVSHIPS specification 0900-006-3010.

30 FBH Resolution Block: Used for determining resolution and sensitivity characterisitics for normal beam tranducers.  Also useful for area/amplitude plots.

ASME Calibrating Blocks: Oone flat bottom hole (FBH) with diameter and depth per requirement.

ASTM Area/Amplitude Set: Consists of 8 blocks with the same specified flat bottom hole size.  Hole size is #1 FBH (1/64”) to #8 FBH (8/64”) at .300” depth.

ASTM Distance/Amplitude Set: Nineteen blocks with the same specified flat bottom hole size. Metal travel distances are as follows:  .060”, .120”, .250”, .370”, .500”, .620”, .750”, .870”, 1.00”, 1.25”, 1.75”, 2.25”, 2.75”, 3.25”, 3.75”, 4.25”, 4.75”, 5.25”, 5.75”.

ASTM Distance/Area - Amplitude Set:  Ten blocks with flat bottom holes as follows: #3@ 3.00”, #5@ .120”, #5@ .250”, #5@ .500”, #5@ .750”, #5@ 1.50”, #5@ 3.00”, #5@ 6.00”, #8@ 3.00”, #8@ 6.00”.

Single ASTM Blocks:  Sensitivity or resolution measurement of normal beam transducers. Any block from teh above ASTM set is available.