Interactive Tool
Translate legacy Department of State K-ratings into current ASTM F2656 condition designations, understand P1–P4 penetration classes, and check barrier systems against third-party certified lab results.
Select a rating from either system. The decoder returns the equivalent designation, the exact test condition it certifies, and what it does not certify.
| Legacy DOS | ASTM F2656 | Test Vehicle | Impact Speed | Equivalence Note |
|---|
Equivalence assumes P1 penetration. An M50 P3 system is not a K12 equivalent, regardless of the impact condition matching.
| Rating | Dynamic Penetration | What It Means for the Specifier |
|---|
| Class | Vehicle | Test Weight |
|---|
Filterable Database
Every entry is flagged by evidence level. Third-party certified means an independent accredited laboratory report is on file with NPSI. Self-reported means the only source is the manufacturer. The flag is the finding.
| System | Type | Rating | Penetration | Legacy Equiv. | Evidence | Foundation |
|---|
Database entries shown are schema samples pending replacement with verified lab-report data. Submissions of test reports for listing: reports@npsinstitute.com (verification required, listing is free, no listing is ever paid for).