Independent analysis
Bacteriostatic Water testing
$125 for purity, identity and quantity on one sample — reported against the strength on your label, with a certificate anyone can verify.
Purity, Identity & Benzyl Alcohol Content on one sample by HPLC-DAD, 3 business days from arrival. Rush (+100%) returns results same or next day.
Bacteriostatic Water testing, specifically
Bacteriostatic water is judged on its benzyl alcohol content, not on a generic purity figure, so it has its own panel rather than the standard one: we confirm identity and report benzyl alcohol against the 0.9% that the label claims. Too little and it is not bacteriostatic; too much and it is not what the label says either. pH is available as an add-on and is the other number worth having, because it is the one that tends to drift in water that has been stored badly or decanted into something it should not have been.
What the $125 includes
- Purity, Identity & Benzyl Alcohol Content — HPLC-DAD
One submission, one certificate, one verification code. The certificate carries the chromatogram, the method, the analyst who ran it and the analyst who reviewed it.
Add-ons for Bacteriostatic Water
| Add-on | Method | Price | Turnaround |
|---|---|---|---|
| Sterility | USP 71 | $175 | 14 days |
| Rapid Sterility | PCR | $150 | 7 days |
| Heavy Metals | Chromogenic | $25 | 3 days |
| Endotoxin Assay | Chromogenic | $100 | 3 days |
| Fentanyl Presence | Immunoassay | $50 | 3 days |
| Residual Water | Karl Fischer | $100 | 3 days |
| Dissolution Time | — | $50 | 1 day |
| Residual Solvents | GC-FID | $100 | 3 days |
| pH | Potentiometric | $25 | 1 day |
| Vial-to-Vial Variance | HPLC-DAD | $50 | 3 days |
Other names we accept
Submitted as bac water, bacteriostatic sodium chloride — all the same material as far as the submission is concerned.
What to send
- One vial of the lot you want reported on. Testing more vials of the same lot is the variance add-on, priced per extra vial.
- The lot number, and the strength the label claims — the quantity result is reported against that figure.
- A prepaid label at our carrier rates, bought in the order form, or your own shipping. The lab address appears in your portal once the order is paid.
All testing is for research use only. We do not test clinical specimens and we make no statement about the suitability of any material for human or veterinary use.
Why labs and suppliers send samples here
Priced from $100
That price buys the whole standard panel — purity, identity and quantity — not a single number. Add-ons are $25 to $175 per sample on top.
Rush in one day
Standard turnaround is 3 business days from the day your sample arrives. Rush is +100% and returns results same or next day.
Shipping at our rates
Buy a prepaid label in the order form at our negotiated USPS, UPS and FedEx rates, passed through at cost. Or ship it yourself — the address is in your portal.
Watch it move
Your portal shows where the sample is in real time: in transit, received, in progress, data acquired, completed. No emailing to ask.
Reviewed by a second analyst
No result is released by the person who produced it. The reviewer is recorded on the certificate, and every change is kept in an audit trail.
A certificate anyone can check
Every certificate carries a code and a QR. Your customers verify it themselves against our records — they do not have to take a PDF on trust.