Pure Vial
Certificate of Analysis

Every batch, documented.

Every Pure Vial batch is filtered through a 0.22 µm membrane and tested before it ships. The Certificate of Analysis (COA) for your batch is available on request.

How to request your COA
  1. 1.Find your batch number — printed on the vial label, e.g. 2026-Q3-047.
  2. 2.Email support@purevial.shop with your batch number and order ID.
  3. 3.We send the signed PDF back — usually within one business day.
What's tested
  • · Benzyl alcohol concentration
  • · pH (5.0 – 6.5)
  • · Visual inspection · fill volume
Retention

We hold batch samples and test records for 24 months. Every vial is traceable to its filling date and operator.

Bulk-order or institutional buyer? Contact us — we can pre-attach COAs to your invoice.