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Fill Volume Testing
USP <697> fill-volume verification (container content) for injectable products.
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WHY YOU NEED IT
USP <697> confirms each container holds enough product to withdraw the labeled volume, so the intended dose can actually be administered.
Product is always left behind in the vial and syringe; deliverable-volume testing verifies the fill accounts for it.
Under- or over-filled containers signal a filling problem — measuring content is a direct check on that step.
OUR PROCESS
Method Suitability
Proving the method first
Before any lot release, we validate that the test method performs reliably for your product — the compliance step that comes first.
N/A
Lot Release
Releasing every batch
Our core service — we run the test on each lot so you can release the batch to patients with confidence. [ not used for lot release]
Stability Studies
Across your stability timeline
The same test run at each stability timepoint — for example, to support a longer beyond-use date (BUD).
[X] vials N/A
TECHNOLOGY
Withdraw, measure, compare to label.
OUR SERVICES
STABILITY STUDIES
See how this test can support a validated stability program and the data needed for extended beyond-use dating.
✓
Stability-indicating HPLC methods that separate API from degradation products
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Custom study designs for refrigerated, frozen and room-temperature storage conditions
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Defined pull points with potency, pH, appearance and container-closure assessment
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Documentation packages to support extended beyond-use dating under USP <797>
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Sterility and endotoxin testing integrated at study end points
Guide: USP <797> stability studies & extended beyond-use dating →
Request a Stability Study Quote
Starting at $10,000
CATEGORY 2
CATEGORY 3
These studies generate the stability data required to qualify for the extended beyond-use dates that USP <797> permits for Category 2 and Category 3 CSPs — going well beyond the default short-dating limits.
TYPICAL STUDY OUTLINE
What a stability program covers
Supports
USP <797> Cat 2 & Cat 3 extended BUD
Storage conditions
Refrigerated · Frozen · Controlled RT
Pull points
T0, then defined intervals to BUD
Assays per point
Potency · pH · Appearance
Method type
Stability-indicating HPLC
End-point testing
Sterility · Endotoxin
Deliverable
BUD support documentation
COMMON QUESTIONS
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TALK TO A SCIENTIST
Whether you need testing guidance, a quote, or just have questions — we’re here. A scientist will follow up within one business day.
USP methods verified for suitability, alternatives validated
Response within one business day
No obligation — guidance and quotes welcome
For service requests, quotes, or technical questions, email our support team.
info@saphobio.com
Phone
Available Monday to Friday, 9:00 AM – 6:00 PM (Pacific Time).
Text us: +1 (929) 437-6148
Site Visit
Visits by appointment only. Please contact us to schedule.
1068 Washington St. STE B, San Carlos, CA 94070



















