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Digital Calibration Certificate
Recalibration DuePTX-2021-000012
Sartorius Picus 8-Channel
Electronic air-displacement, multichannel
- Serial number
- SB-7790015
- Channels
- 8
- Volume range
- 5–100 µL
- Registered lab
- Vantage Cell Therapies
- Location
- Cambridge, MA
- Overall result
- Pass
- Performed
- June 30, 2023
- Next due
- June 29, 2024
- Technician
- M. Alvarez, Lead Metrologist
- Standard
- ISO 8655-2 / ISO 8655-6
- Method
- Gravimetric method per ISO 8655-6, 10 replicates per test volume, all channels tested individually
- Reference balance
- Mettler Toledo XPR2U Micro Balance
- Conditions
- 22.1°C · 51% RH · 1011 hPa
Technician notes: Initial calibration on enrollment.
ISO 8655 measurement results
Gravimetric test at 10%, 50%, and 100% of nominal volume, per ISO 8655-6.
| Test point | Mean measured | Systematic error | Random error (CV) | Result |
|---|---|---|---|---|
| 10% – 10 µL | 10.22 µL | +2.20% / ±4% | 2.10% / ≤2.50% | Pass |
| 50% – 50 µL | 50.40 µL | +0.80% / ±1.80% | 0.95% / ≤1.30% | Pass |
| 100% – 100 µL | 100.65 µL | +0.65% / ±1.50% | 0.65% / ≤1% | Pass |
Calibration history
Every past calibration for this instrument is its own permanent certificate — click any entry to see its full measurement data.
- July 4, 2025Calibrated — pass
J. Okafor, Calibration Technician — Channel 4 O-ring replaced prior to test; all 8 channels retested to spec. Values below are the mean across channels.
PTX-2023-000047
- June 29, 2024Calibrated — pass
M. Alvarez, Lead Metrologist
PTX-2022-000559
- June 30, 2023Calibrated — passViewing now
M. Alvarez, Lead Metrologist — Initial calibration on enrollment.
PTX-2021-000012