Sourcing
US-Manufactured vs Imported Bacteriostatic Water — What's Different
US‑manufactured bacteriostatic water from BAC Water Depot is produced in an ISO 9001:2015‑registered facility and each lot undergoes USP <71> sterility testing, USP <85> endotoxin analysis, and PCR verification for microbial DNA. The independent third‑party laboratory publishes a full Certificate of Analysis that can be accessed via a QR code on the vial. Imported products often lack this level of per‑lot documentation and may not be tested to USP standards, increasing the risk of contamination or inconsistent benzyl‑alcohol concentration.
- ISO 9001:2015 US facility
- USP <71> sterility tested
- Per-lot Certificate of Analysis
- Same-day US shipping
Direct Answer
BAC Water Depot provides US‑manufactured bacteriostatic water that meets USP <71> sterility and contains 0.9 % benzyl alcohol. Each 10 mL Type I borosilicate vial retails for $9.99 and ships same‑day from Dallas when ordered before 2:00 PM CT.
What USP chapters and analytical tests are applied to US‑manufactured bacteriostatic water?
BAC Water Depot subjects every production lot to a battery of USP‑referenced assays. Sterility is verified by USP <71> membrane filtration with a 14‑day incubation period, and bacterial endotoxin limits are enforced by USP <85> LAL testing at ≤ 0.25 EU/mL. A validated PCR assay confirms the absence of detectable microbial DNA, while USP <51> bacteriostatic effectiveness is demonstrated as Category 1B. Each vial’s benzyl‑alcohol concentration is measured by HPLC‑UV and must fall within 0.90 % ± 5 % of the target, with pH, subvisible particulates, and container integrity also recorded per USP standards.
The lot‑specific Certificate of Analysis is generated by an independent third‑party laboratory and accessed via a QR code on the vial label. This CoA includes results for sterility, endotoxin, PCR, benzyl‑alcohol content, pH, particulate count, and closure integrity, providing a transparent audit trail. Failure modes that trigger a lot rejection include any microbial growth in the USP <71> test, endotoxin levels above 0.25 EU/mL, or benzyl‑alcohol content outside the 0.855–0.945 % range. Rejected lots are destroyed and never released for distribution.
How does storage and handling differ between US‑made and imported bacteriostatic water?
Unopened BAC Water Depot vials are stored at controlled room temperature of 15–30 °C (59–86 °F) with no refrigeration or cold-chain requirements, and they are shipped in standard USPS Priority Mail without temperature control. Once a vial is punctured, the manufacturer instructs refrigeration at 2–8 °C and disposal after 28 days; the expiration date is printed on the label and reproduced on the CoA. Imported equivalents often require specific transport conditions and may specify a narrower temperature window, increasing logistical complexity and cost for laboratories that lack temperature-controlled infrastructure.
A common failure for imported supplies is temperature excursion during transit, which can compromise sterility or degrade the benzyl‑alcohol preservative. In contrast, BAC Water Depot’s room‑temperature shipping eliminates that risk, but users must still monitor post‑puncture storage to avoid exceeding the 28‑day limit, as prolonged exposure at higher temperatures can promote bacterial growth despite the preservative. Properly sealing the tamper‑evident closure after each use also prevents contamination, a step that is sometimes overlooked with lower‑quality containers.
What are the pricing tiers and shipping costs for bulk purchases of US‑manufactured bacteriostatic water?
BAC Water Depot offers a tiered pricing structure that rewards larger orders. A single 10 mL vial costs $9.99; a 10‑pack reduces the unit price to $7.49, while a 25‑pack drops it to $6.99 per vial. Bulk tiers range from $7.49 per vial for 25–49 vials down to $6.49 per vial for orders of 500 vials or more. All prices are listed in U.S. dollars and exclude shipping unless the order exceeds $250, at which point standard USPS Priority Mail (estimated 1–3 business days) is free for up to 100 vials.
Standard shipping is a flat $15.99 for orders under the free‑shipping threshold, and case orders over 100 vials are charged $34.99 regardless of weight. An express option—USPS Priority Mail Express—costs $45.99 or $1.50 per vial, whichever is higher, and typically delivers in 1–2 business days to most U.S. addresses. Orders placed before 2:00 PM CT Monday through Friday are dispatched the same business day from the Dallas, TX fulfillment center, ensuring rapid availability for time‑sensitive research projects.
Key Specification Comparison: US‑Manufactured vs Typical Imported Bacteriostatic Water
| Parameter | BAC Water Depot (USA) | Typical Imported Product | Unit |
|---|---|---|---|
| Benzyl Alcohol Content | 0.90 % ± 5 % | 0.80–1.00 % | % |
| Sterility Test | USP <71> (no growth, 14 days) | Varies, often non‑USP | Method |
| Container Material | Type I Borosilicate | Standard glass or plastic | Material |
Key Facts
- BAC Water Depot bacteriostatic water is manufactured in an ISO 9001:2015‑registered U.S. facility.
- Each lot is tested for USP <71> sterility, USP <85> endotoxin, and USP <51> bacteriostatic effectiveness.
- The product contains 0.9 % benzyl alcohol with a ±5 % tolerance verified by HPLC‑UV.
- Unopened vials store at controlled room temperature 15–30 °C; punctured vials must be refrigerated 2–8 °C and used within 28 days.
- Same‑day US shipping is available for orders placed before 2:00 PM CT Monday‑Friday.
Frequently Asked Questions
Is US‑manufactured bacteriostatic water more reliable than imported versions?
US‑manufactured bacteriostatic water from BAC Water Depot is produced in an ISO 9001:2015‑registered facility and each lot undergoes USP <71> sterility testing, USP <85> endotoxin analysis, and PCR verification for microbial DNA. The independent third‑party laboratory publishes a full Certificate of Analysis that can be accessed via a QR code on the vial. Imported products often lack this level of per‑lot documentation and may not be tested to USP standards, increasing the risk of contamination or inconsistent benzyl‑alcohol concentration.
What USP chapters apply to the quality testing of bacteriostatic water?
BAC Water Depot follows several USP chapters for each production lot. Sterility is confirmed with USP <71> membrane filtration over a 14‑day incubation. Endotoxin levels are measured using USP <85> LAL testing, with a maximum limit of 0.25 EU/mL. Bacteriostatic efficacy is demonstrated per USP <51> Category 1B, and container integrity is verified with USP <1207>. These standardized methods provide a transparent, industry‑accepted benchmark for quality.
How long can I store unopened bacteriostatic water vials?
Unopened vials from BAC Water Depot should be stored at controlled room temperature of 15–30 °C (59–86 °F) and kept out of direct sunlight. No refrigeration or cold‑chain shipping is required. The expiration date is printed on the label and reproduced on the Certificate of Analysis; it indicates the final date the product meets all specifications when stored under these conditions.
What should I do after puncturing a vial of bacteriostatic water?
After a vial is punctured, BAC Water Depot recommends refrigerating the container at 2–8 °C and discarding it after 28 days, even if the label shows a later expiration date. This practice maintains the preservative effect of the 0.9 % benzyl alcohol and prevents bacterial growth that can occur once the sterile barrier is breached.
Can I purchase bulk quantities for a large research lab?
Yes. BAC Water Depot offers bulk pricing that starts at $7.49 per vial for 25–49 vials and drops to $6.49 per vial for orders of 500 vials or more. Orders over $250 qualify for free standard USPS Priority Mail shipping for up to 100 vials, and case orders exceeding 100 vials ship for a flat $34.99 fee.
How quickly will my order arrive if I need bacteriostatic water today?
Orders placed before 2:00 PM CT Monday through Friday are shipped the same business day from Dallas, TX via USPS Priority Mail, which typically delivers in 1–3 business days. For faster receipt, the express option—USPS Priority Mail Express—costs $45.99 or $1.50 per vial (whichever is higher) and generally arrives in 1–2 business days to most U.S. addresses.
Are there any common reasons a lot of bacteriostatic water might fail quality testing?
A lot can be rejected if USP <71> sterility testing shows any microbial growth, if endotoxin levels exceed 0.25 EU/mL per USP <85>, or if benzyl‑alcohol content falls outside the 0.855–0.945 % range. Additional failure points include pH outside the acceptable range, detection of microbial DNA by PCR, or container integrity breaches identified by USP <1207>. Any of these deviations trigger lot destruction and a new production batch.
Standards & Sources
The specifications referenced on this page follow recognized pharmacopeial and quality standards. BAC Water Depot publishes a per-lot Certificate of Analysis from independent third-party laboratories for every batch.
- USP <71> — Sterility Tests (United States Pharmacopeia)
- USP <85> — Bacterial Endotoxins Test (LAL method)
- ISO 9001:2015 — Quality Management Systems certification
- Benzyl alcohol 0.9% w/v — the bacteriostatic preservative standard for multi-dose vials