$55.00 USD

Type 3 reference test block (JIS Z 2343-3/ISO 3452-3)

The Aluminum Comparator Block is divided into two segments and can be used to
compare different penetrants to one and other or fresh penetrant to penetrant in use. The cracked aluminum block is made from 2024 Aluminum with a groove separating the two sides to facilitate side-by-side penetrant comparison.