"Field","Fictional example","Your case","Meaning" "Upstream particle count","1000","","INPUT; positive number; original equal-volume or volume-normalized count" "Downstream particle count","100","","INPUT; nonnegative; same volume basis; decimals allowed after normalization" "Common particle/volume/test basis confirmed: enter 1","1","","INPUT; enter 1 only after human review of the evidence fields below" "Retained fraction (0 to 1)","=IF(COUNT(B2:B4)<3,""Enter numeric inputs"",IF(OR(B2<=0,B3<0,B3>B2),""Check report inputs"",IF(B4<>1,""Confirm common basis"",1-B3/B2)))","=IF(COUNT(C2:C4)<3,""Enter numeric inputs"",IF(OR(C2<=0,C3<0,C3>C2),""Check report inputs"",IF(C4<>1,""Confirm common basis"",1-C3/C2)))","FORMULA; 1 minus downstream divided by upstream" "Retained percentage (0 to 100)","=IF(ISNUMBER(B5),B5*100,B5)","=IF(ISNUMBER(C5),C5*100,C5)","FORMULA; percentage number, not a recommended threshold" "Report and element identity","","","MANUAL; exact element/version and report/date" "What the micron label means","","","MANUAL; opening, nominal, defined absolute, or particle-count result" "Particle size boundary and material","","","MANUAL; same class or threshold, shape/material and stated definition" "Analyzed volume and normalization","","","MANUAL; same analyzed volume or counts normalized to the same volume; preserve original units" "Test conditions and basis","","","MANUAL; same defined test; retain relevant fluid/flow/state conditions" "Count or mass denominator","","","MANUAL; this calculator accepts particle counts only, never mass removal" "Definition of nominal or absolute claim","","","MANUAL; supplier definition and test reference; no universal percentage" "What remains unestablished","","","MANUAL; other particles, dissolved ions, inactivation, bypass, loss and life" "Installed assembly question","","","MANUAL; applicable element, seals and flow path need separate evidence" "Comparison conclusion and next action","","","MANUAL; comparable on stated basis, or unresolved; no equipment approval" "Use","FORMULA AND MANUAL. Import UTF-8 comma CSV with formula evaluation. Enter blank Your case inputs and manual fields only. Keep row/column order; no sorting, insertion or moving. Save native workbook copy. Decimals are allowed for normalized counts. Do not introduce test particles into irrigation water.","","The example is fictional. A numerical fraction does not validate the report or installation." "Source context","https://www.pall.com/content/dam/pall/oil-gas/literature-library/non-gated/WER_5300B.pdf ; https://amiad.com/technology/disc-technology/ ; https://www.screenerking.com/pages/mesh-and-wire-sizing-chart","","Historical OEM definitions and architecture references; not a greenhouse acceptance standard."