Bioprocess Hub
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Tools & forms

Bioprocess calculators and URS document generators for upstream, downstream, lab prep and equipment specification. Search by name, group or tag, then open a form to use it.

Fill any URS yourself — free. Complete the form manually and download the document at no cost. Or use our AI assistant to draft it in seconds: it fills the form from a short brief, suggests specs, checks ASME/compliance by location, and can recommend manufacturers.
Upstream Titer & Total Yield
1 uses
Upstream

Estimate total product mass and volumetric productivity from titer, working volume and run time.

titeryieldproductivityfermentationcell culture
Downstream Step Recovery
1 uses
Downstream

Multiply per-step recoveries to see overall yield across a purification train — and where you lose the most.

yieldrecoverypurificationchromatographydsp
Dilution (C₁V₁ = C₂V₂)
1 uses
Lab prep

Work out how much stock and diluent you need to reach a target concentration and volume.

dilutionconcentrationbufferstockc1v1
OD₆₀₀ → Cell Density
1 uses
Upstream

Convert an optical density reading into an approximate cell concentration for your organism.

od600cell densitygrowthoptical densitybiomass
URS — Fermenter / Bioreactor
1 uses
URS

Bioreactor system questionnaire — capture full client requirements for a fermenter / bioreactor.

ursfermenterbioreactorupstreamquestionnairegmp
URS — Mixing Vessel
1 uses
URS

Generate a User Requirement Specification for a mixing / preparation vessel.

ursmixing vesselpreparationspecificationgmp
URS — Process Vessel
1 uses
URS

Generate a User Requirement Specification for a process / storage vessel.

ursprocess vesselstoragetankspecificationgmp
URS — TFF Skid
1 uses
URS

Generate a User Requirement Specification for a tangential-flow filtration (TFF) system.

urstfffiltrationdownstreamultrafiltrationspecification
URS — Centrifuge
1 uses
URS

Generate a User Requirement Specification for a process centrifuge.

urscentrifugeseparationclarificationdownstreamspecification