{"checkedAt":"2026-09-07T21:43:49.445Z","source":{"report":"NIST NCSTAR1-3B final","table":"4-1","printedPage":51,"pdfPage":79,"gauges":{"table":"3-5","printedPage":14,"pdfPage":42},"orientation":"Footnote a: slots1\u20133 left-to-right viewed inside. North inside view has west/129 left, east/131 right."},"scope":"M27 per-column plate gauges measured by rays through actual emitted geometry; independent source-ring stem location. Strike-through in source means unrecovered material, not an impact-removal rule. M2 unchanged-control specimen.","expectedM27":[{"column":129,"tableSlot":1,"type":123,"sideIn":0.4375},{"column":130,"tableSlot":2,"type":123,"sideIn":0.4375},{"column":131,"tableSlot":3,"type":124,"sideIn":0.5}],"passes":25,"failures":[]}