Capability
Gas Flow Calibration
molbloc-referenced gas flow, from sccm to thousands of slpm.

Our gas flow bench is built around the Fluke molbloc/molbox laminar flow measurement system, the same reference used by flow standards labs. Six molbloc elements cover 50 SCCM through 2,500 SLPM full scale, with uncertainty of ±0.25% of reading from 10–100% of each element’s range. Mass flow controllers are calibrated with live setpoint control and error mapping.
| Uncertainty (10–100% FS) | ±0.25% of reading |
|---|---|
| Below 10% FS | ±0.025% FS |
| Element coverage | 50 / 500 SCCM · 5 / 25 / 250 / 2,500 SLPM |
Reference standards in this lab
Fluke molbloc/molbox system
Laminar flow reference with six molbloc elements spanning 50 SCCM to 2,500 SLPM
Instruments we calibrate
- Mass flow controllers (MFCs)
- Mass flow meters
- Rotameters
- Flow meters
- Flow sensors
Representative list. The current A2LA scope PDF documents accredited ranges and CMC uncertainty at every point.

Need flow calibration?
Send your equipment list and we’ll confirm scope, pricing, and turnaround within one to two business days, with free pickup if you’re on a SoCal route.
