JIS STB Type G Test Blocks The G-type Standard Test Blocks (STB) are a series of test blocks containing flat-bottom holes and are used in straight beam (normal) testing. They are used to adjust the working sensitivity, to... Details
JIS STB-A3 Test Block Standard Test Block (STB) Type A3 is used for adjusting the working sensitivity and test range, and for the measurement of refraction angle and probe index of angle beam transducers. STB types A31... Details
JIS STB-A2 Test Block Standard Test Block (STB) Type A2 is used for adjusting the working sensitivity and for the measurement of overall performance characteristics of test equipment. STB types A21 (Fig. 5) and A22 (Fig... Details
Wood Case for JIS STB-A2 Fitted wooden case for PH Tool's JIS STB-A2 Test Block Note: cases shown in photo may not be applicable for the block(s) you are purchasing; they are shown as examples ONLY. All PH Tool wood cases... Details