Blast Profile Comparator

Blast Profile Comparator

R2006. Surface Roughness Comparator Grit

The Blast Profile Comparator for grit-blast and shot-blast surface profile comparison measurement of blast-cleaned steel.

The Blast Profile Comparator is supplied in a protective Wallet.

Available in the following Blast Profile Comparator models: R2006 Grit and R2007 Shot.

Compliant to ISO 8503-1, ISO 8503-2 and ASTM D4417.

Technical Specification

When steel has been blast-cleaned, the surface consists of random irregularities with peaks and valleys that are not easily characterised. Because of this random nature, it is recommended that the profile should be identified as either angular (where grit abrasives have been used) or dimpled (where shot abrasives have been used) and that they should be graded as fine, medium or coarse using the four segments on the Comparator.

Fine-grade profiles equal to segment 1 and up to but excluding segment 2. Medium-grade profiles equal to segment 2 and up to but excluding segment 3. Coarse-grade profiles equal to segment 3 and up to but excluding segment 4.