Description
Label a supplied microbial below-limit value and inequality convention.
Microbiology records distinguish experimental roles, unread plates, detected/nondetected results and reporting limits. Logarithmic and linear count-like quantities use different scales, while dilution fractions describe explicit mathematical factors. None of these labels or local conversions verifies an organism, assay, culture condition or safe laboratory procedure.
Label a supplied microbial below-limit value and inequality convention.
When to use this tool
Use Microbial Below Limit Marker when you already have sampleId, suppliedLimit, unitText, lessThanOrEqual and need to label a supplied microbial below-limit value and inequality convention.
How to use the tool and how it works
- Enter sampleId, suppliedLimit, unitText, lessThanOrEqual. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read label. Use the output convention below.
Require sampleId/unitText nonempty and suppliedLimit>=0; select < or <= using lessThanOrEqual and format the boundary with its unit.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| sampleId | Sample Id | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| suppliedLimit | Supplied Limit | Required. Finite number; minimum 0. |
| unitText | Unit Text | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| lessThanOrEqual | Less Than Or Equal | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| label | Label | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"sampleId": "S17",
"suppliedLimit": 10,
"unitText": "CFU/mL",
"lessThanOrEqual": false
},
"output": {
"label": "S17: \u003c10 CFU/mL"
}
}Limitations and assumptions
- No observation is compared or exact value imputed; the limit is supplied rather than a verified assay or health criterion.
- 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
Review actual laboratory observations, control records, reporting basis and the complete analytical method for substantive interpretation. Keep unread and censored states distinct from exact results; supplied dilution or log conversions do not validate the underlying assay.
References
Similar or alternative tools
- Microbiology Transport Timestamp Label
Label specimen collection and receipt timestamp transcriptions.
- Sample Control Negative Positive Tag
Label a sample's recorded experimental-control role.