Lovibond ICx High-Precision Colour Measurement of Clear Liquids
PDF · Manufacturer document
The ICx application document lists low Pt-Co liquid standards, accuracy, reproducibility and repeatability with conditions. This is manufacturer-data interpretation, not Labsun measurements or a customer report.[1]
What the manufacturer table provides
| Liquid standard (Pt-Co) | Accuracy column | Reproducibility column | Repeatability column |
|---|---|---|---|
| 5 | ±0.5 | ±0.3 | ±0.2 |
| 10 | ±0.75 | ±0.7 | ±0.5 |
| 20 | ±1.20 | ±1.0 | ±1.0 |
The values follow the original table in the corresponding Pt-Co expression. Columns are not interchangeable; the smallest value at one point does not replace the other metrics.[1]
Conditions to retain
The document uses Lovibond Premium Pt-Co liquid references derived from a primary batch with ISO 17025-related qualification, in a controlled laboratory strictly following the manufacturer sample procedure. Without reference, cell and handling conditions, these are not arbitrary on-site guarantees.
Three points are not complete whole-range evidence. Do not infer identical tolerances for all low-colour samples, the entire range or other scales.
Why additional statistics cannot be calculated
Complete raw readings, test counts and metric calculations are absent. They cannot supply independent SD, confidence intervals, recovery or passing percentages. The table illustrates reading specifications, not a complete independent validation dataset.
What local confirmation needs
Define sample/standard, cell and conditions, repetitions, processing and criteria separately for local confirmation.
Manufacturer figures illustrate metrics; local records establish performance under local conditions. Retain their distinct origins and do not substitute one for the other.
References
- [1] Lovibond ICx High-Precision Colour Measurement of Clear Liquids, PDF page(s) 3 (file page order). View reference resource