3 mL vs 10 mL vs 30 mL Bacteriostatic Water
The main difference between UKB’s 3 mL, 10 mL and 30 mL bacteriostatic water options is the supplied volume. UKB3ML is the smallest own-brand glass vial, UKB10 the middle size and UKB30 the largest. Choose a format against your laboratory’s purchasing requirements, then use the current product listing for price, stock, batch information and pack options.
Updated 5 October 2026 · Laboratory and analytical research information only.
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How do the three UKB sizes compare?
| Format | Product code | Presentation | Labelled preservative | Current price and stock |
|---|---|---|---|---|
| 3 mL | UKB3ML | Multi-dose glass vial | 0.9% benzyl alcohol | Check 3 mL listing |
| 10 mL | UKB10 | Multi-dose glass vial | 0.9% benzyl alcohol | Check 10 mL listing |
| 30 mL | UKB30 | Multi-dose glass vial | 0.9% benzyl alcohol | Check 30 mL listing |
The comparison describes catalogue specifications, rather than live inventory. Current price and availability are maintained on the product and shop pages, so there are no fixed price or stock claims here to become outdated.
What should determine the size I purchase?
Compare your laboratory’s required supplied volume, approved protocol, stock turnover and storage arrangements. Smaller containers take less space per vial, while larger formats supply more volume in one container. Size alone does not establish compatibility, grade or the permitted period after opening.
Use the laboratory’s documented requirements to choose a format. This table does not provide dosing or preparation calculations.
Does a larger vial mean a different concentration?
Not in these three UKB listings: each states 0.9% benzyl alcohol. Volume and concentration are separate specifications. Confirm both on the supplied label, especially when comparing another manufacturer’s products.
Read what the preservative statement means and the BAC water basics.
Are pack deals and availability the same for each size?
They can differ. Each product has its own current price, stock status and enabled pack options. A listing may show in-stock, out-of-stock or pre-order information; check any dispatch timing before paying. Use the live shop for quantities and active pack deals.
Open UKB3ML · 3 mL, UKB10 · 10 mL and UKB30 · 30 mL, or view the full shop.
Can I compare other manufacturers by volume alone?
No. A 10 mL ampoule and a 10 mL multi-dose glass vial are different presentations even when the stated volume matches. Compare manufacturer, container, label wording and documentation as well as size. The UKB shop keeps those products on separate listings.
The UK buying guide links to manufacturer-specific pages, and the water comparison explains formulation differences.
Do all sizes have the same storage instructions?
Do not infer storage or an after-opening period from volume. Check the exact label and manufacturer documentation for the stock received. Keep the batch and expiry information available for your laboratory records.
See the storage checklist before deciding where to keep the product.
UKB Research Library
Product and purchasing information for laboratory and analytical research.