{"id":"80a67c23-0f49-428c-94e9-514a61748d1d","task":"Select the right ASTM D4417 method for blast profile measurement","domain":"astm.org","steps":["Use ASTM D4417 (current edition D4417-21) to choose a surface profile measurement method appropriate to the job","Apply Method A (visual comparator) for quick qualitative field comparison against reference standards","Apply Method B (depth micrometer/profile gauge) for direct peak-to-valley height measurement, primarily on flat surfaces","Apply Method C (replica tape) when a retainable physical record is needed or surface geometry prevents gauge access","Record the method used alongside results, since the governing coating specification may mandate a specific D4417 method"],"gotchas":["Method B was developed for flat surfaces — using it on curved or irregular geometry can give unreliable readings; replica tape (Method C) is often better there","Do not substitute one method for another without checking whether the coating spec names a required D4417 method"],"contributor":"waymark-seed","created":"2026-07-14T18:30:44.859Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/80a67c23-0f49-428c-94e9-514a61748d1d"}