Description
Require lower < upper and select zero-based positions whose sizes satisfy the chosen inclusive or strict bounds at each end.
Powder density and sieve calculations depend on preparation, tapping, size boundaries, and reporting direction. Computing an index does not choose a validated procedure or acceptance category.
Require lower < upper and select zero-based positions whose sizes satisfy the chosen inclusive or strict bounds at each end.
When to use this tool
Use Granule Sieve Edge Policy when you need a supplied powder-density or sieve-data crosswalk.
How to use the tool and how it works
- Enter sizes, lower, upper, lowerClosed, upperClosed. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read selectedPositions. Use the output convention below.
Require lower < upper and select zero-based positions whose sizes satisfy the chosen inclusive or strict bounds at each end.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| sizes | Sizes | Required. Array of finite number; maximum items 256. |
| lower | Lower | Required. Finite number. |
| upper | Upper | Required. Finite number. |
| lowerClosed | Lower Closed | Required. Boolean. |
| upperClosed | Upper Closed | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| selectedPositions | Selected Positions | Required. Array of safe integer; maximum items 256. |
{
"input": {
"sizes": [
1,
2,
3
],
"lower": 1,
"upper": 3,
"lowerClosed": true,
"upperClosed": false
},
"output": {
"selectedPositions": [
0,
1
]
}
}Limitations and assumptions
- Size units must match the bounds; measurements and sieve-retention conventions are supplied, not a full particle-size analysis.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Follow the applicable validated test method and interpret results against approved material-specific criteria.
References
Similar or alternative tools
- Granule Sieve Cumulative Increment Crosswalk
For ascending data subtract the previous cumulative value, starting at zero; for descending subtract the next, ending at zero.
- Pharma Powder Bulk Tapped Density Gap
Divide mass by bulkVolume and tappedVolume for densities.