Plan a trial for your application
Emulsion products
Perform the project-approved preservative challenge test on the complete formulation.
Water-based cleaners
Compare preservation performance and odor after changes in packaging, pH or surfactants.
Purchase specifications and incoming inspection
Review these properties when selecting and inspecting incoming material. Example figures refer to the cited grade or source. Confirm the offered specification, packaging and lead time in the quotation. Clariant Phenoxetol · Phenoxyethanol ingredient ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| Purity | % by mass | Agree for the grade and end use | State the chromatographic method and peak integration basis. |
| Specified impurities | mg/kg | Agree for the grade and end use | List each requirement for the destination market and grade. |
| Preservative challenge test result | Project criterion | Agree for the grade and end use | Specify the method, sampling time and final packaging. |
When approving a sample, record the grade, methods, limits and specification revision. On receipt, match the packing lot number to the lot-specific COA and record the measured values and release decision.
From samples to commercial delivery
Packaging and receiving
Distinguish neat phenoxyethanol from commercial blends with synergists. Retain samples by drum label.
Storage and handling
Have the supplier confirm destination label, SDS and permitted application for each order.
Sample and order lead times
Compare quotations by active matter, as-supplied net weight and packaging. State destination and receiving facilities and request MOQ, sample dispatch and commercial arrival dates.
Questions from the plant
Why can a product fail preservation when the preservative assay passes?
Check availability in the aqueous phase, partitioning and packaging contamination risk. Carry out the appropriate challenge test.
Can a blended preservative replace another at equal weight?
Identify each active component and reassess the complete formulation.
Report a delivery or batch issue
Include the order number, lot number from the package, label photos and inspection records for the affected lot. When retesting, check Purity, Specified impurities, Preservative challenge test result.
Request documents for your application
TDS · Technical data sheet
For grade selection and sample approval, specify the grade and revision required.
SDS · Safety data sheet
Specify the country or region of use and the required language.
COA · Certificate of analysis
Request a sample COA during supplier review. For incoming inspection, provide the actual lot number.