Lovibond ICx High-Precision Colour Measurement of Clear Liquids
PDF · Manufacturer document
Appearance can provide one quality observation for clear chemicals and battery electrolytes. The ICx application document discusses these uses, but a colour result alone does not identify a changing constituent or establish battery performance improvement or deterioration.[1]
Select the expression for the quality target
Pt-Co evaluates liquids within the applicable tint range; yellowness index (YI) evaluates yellowing; CIELAB provides lightness and colour directions. Define the expression, conditions and sample suitability before batch comparisons.
Time trends within a batch and comparisons between raw materials are different tasks. Do not combine different scales into one decision number without a conversion basis.
First controls at low colour levels
Maintain the instructed path length, orientation and baseline, and check cleanliness, uniformity and bubbles. Turbidity or particles can affect transmission through scattering; a reading change is not necessarily colour change.[2]
Investigate sample condition, cell/handling and reference checks separately, then decide whether chemical analysis is needed. A colour instrument does not replace a method identifying particular impurities.
Comparable quality records
Record source, sample state, scale, path length, baseline, check results and abnormal-result handling. Acceptance criteria come from the product specification and confirmed method, not typical brochure descriptions.
This is an application explanation, not a customer case. The documents contain no specific production-line samples, independent chemical identification or battery-performance comparison. No universal electrolyte limit or application outcome is inferred.
References
- [1] Lovibond ICx High-Precision Colour Measurement of Clear Liquids, PDF page(s) 2–4 (file page order). View reference resource
- [2] Lovibond ICx Operator Instruction Manual, PDF page(s) 36–44 (file page order). View reference resource