Set up the comparison
Compare lactic acid lots at equal active acid in the same buffered base. Record pH and sensory results before and after the production heat cycle.
Measurements to record
Optical purity (%). Specify how L and D are defined and measured. Report total acid separately. Titratable acidity (As the specified acid). Record titration endpoint, sample concentration and conversion basis. Report pH separately. Record the sample ID and method revision for repeat testing.
Interpreting the results
Before attributing an endpoint difference to the lot, verify concentration, actual mass weighed and the buffering ingredients.
What to record
- Active concentration
- Dose
- Heat history
- Base
- Final pH
Technical references
Products and processes
Apply these findings to your purchase
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