³Ô¹Ïtv / SOLDERING ENGINEERINGMeasurement worksheet: PTH annulus volume and measured fill01Finished-hole diameter · mmUse the actual measured geometry and onereference basis.02Round lead diameter · mmUse the actual measured geometry and onereference basis.03Barrel height · mmUse the actual measured geometry and onereference basis.04Measured vertical fill height ·mmMeasurement must represent the defined barrel;this is not an image-analysis tool.Explanatory schematic. Not to scale, a process recipe, acceptance limit or inspection evidence.