Bac water lab test results
Direct Bac Water's bacteriostatic water is independently tested. A 10 mL sample from lot 260121 was analysed by the laboratory Chromate on 21 August 2026 (report #38663), which measured the benzyl alcohol concentration at 0.912% against a labelled 0.9%, and the pH at 7.068, and recorded the sample as a clear liquid.
Results for lot 260121
| Test | Result | Labelled value |
|---|---|---|
| Benzyl alcohol concentration | 0.912% | 0.9% (9 mg/mL) |
| pH | 7.068 | – |
| Appearance | Clear liquid | – |
| Laboratory | Chromate |
|---|---|
| Report number | #38663 |
| Date analysed | 21 August 2026 |
| Method | RP-HPLC with UV detection (benzyl alcohol) |
| Sample | One 10 mL vial from lot 260121 |
How to read these results
Benzyl alcohol is the preservative that makes bacteriostatic water bacteriostatic. The label states 0.9% (9 mg per mL); a measured 0.912% is within 1.5% of that figure. pH measures acidity: 7 is neutral, and the measured 7.068 is close to neutral. "Clear liquid" records that the sample showed no visible cloudiness or particles.
A laboratory report applies to the product, sample and batch it names. The sample analysed in report #38663 was a 10 mL vial from lot 260121; the report does not describe other lots. The lot number is printed on every Direct Bac Water vial, so you can match a vial to the batch it came from.
If a vial does not look right
Every vial is covered by the 30-Day Quality Guarantee. If a vial arrives cloudy, contains particles, has a broken or missing seal, or does not match its label, Direct Bac Water replaces or refunds it. Email support@directbacwater.com within 30 days of delivery with the order number, the lot number and a photo.
Lab testing: questions
Is Direct Bac Water's bac water lab tested?
Yes. A 10 mL sample from lot 260121 was analysed by Chromate on 21 August 2026 (report #38663), measuring benzyl alcohol at 0.912% and pH at 7.068.
What does 0.912% benzyl alcohol mean?
Bacteriostatic water is labelled 0.9% benzyl alcohol (9 mg/mL). A measured 0.912% is within 1.5% of the labelled concentration, which is what makes the water bacteriostatic.
Which vials do these results cover?
The report covers the sample it names: a 10 mL vial from lot 260121. Each laboratory report applies only to the product, sample and batch identified in it.
How do I find the lot number on my vial?
The lot number is printed on the vial label, next to the expiry date. Quote it with your order number if you contact support@directbacwater.com.