SSPC / NACE / ISO Standards Cross-Reference
Every dry-blast, hand tool, waterjetting, and concrete profile standard in one place. Search by number or name. Print a reference card for the field.
Sources
- SSPC/NACE standards: AMPP (formerly SSPC + NACE International, merged 2021)
- ISO 8501-1: Visual cleanliness grades for blast-cleaned steel
- SSPC-VIS 1: Visual reference photographs for dry blast cleaning
- ICRI Technical Guideline No. 310.2R: Concrete surface profiles (CSP 1-10)
- Note: SP 14 / NACE 8 (Industrial Blast) has no ISO equivalent
Common questions
What is the difference between SSPC SP 10 and ISO Sa 2.5?+
They target the same cleanliness level (near-white metal) but measure it differently. SP 10 requires 95% of each area free of visible residues. Sa 2½ requires 95% free of mill scale, rust, and coatings when viewed without magnification. In practice, both are accepted as equivalent for coating specifications.
What does NACE 2 mean on a coating spec?+
NACE 2 is near-white metal blast cleaning — the same as SSPC SP 10 and ISO Sa 2½. The spec calls for removing almost all rust, mill scale, and old coating, with only light shadows or streaks allowed on up to 5% of the surface.
When do I need white metal (SP 5) vs near-white (SP 10)?+
White metal (SP 5 / Sa 3 / NACE 1) is required for immersion service — tanks, pipes, and surfaces in constant contact with water or chemicals. Near-white (SP 10) is the standard for high-performance coatings like zinc-rich primers and epoxies in atmospheric service. Most structural and marine work specs SP 10.
What is ICRI CSP and when does it apply?+
ICRI Concrete Surface Profile (CSP) is a 1-10 scale for concrete preparation. CSP 1-2 is light etching for thin sealers. CSP 3-5 is shotblasting or light scarification for epoxy floor coatings. CSP 6-10 is aggressive removal for overlays and structural repair. Your coating manufacturer's data sheet will specify the required CSP.
Spec the right standard, then build the estimate.
Try BlastBid free