Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus
Syrou 6, Latsia, 2231, Nicosia Cyprus
NF-A12x25 G2
| Test Environment | Hemi-Anechoic Chamber with 6 dB(A) noise floor | |
| Conditions | 25(±2) degrees Celsius, 40-50% humidity | |
| Sound Analyzer | Bruel & Kjaer 2270-S G4 & 2250-L G4 | |
| Microphone | Bruel & Kjaer Type 4955-A | |
| Mic Calibrator | Bruel & Kjaer Type 4231 | |
| Data Logger | Picoscope TC-08 | Testing Methodology | Cybenetics Phi Fan Performance Standard |
| Manufacturer | Long Win Science & Technology Corporation |
| Model Number | LW-9266 |
| Air Flow Rate | 2.4 – 250 CFM |
| Accuracy of Air Flow Rate | < 3.5% INFS |
| Repeatability error | < 2% |
| Static pressure | 0-20mmAq (100mmAq with the high static pressure throttle device) |
| Overall Dimensions | 0.7 (W) x 2.2 (L) x 1.6 (H) m |
| Power Source | 220VAC, 5A, Single Phase, 50/60Hz |
| Based on Standards | ISO 5801-2007, AMCA 210-0, ASHRAE 51-2007, IEC 61591-2005, GB/T 1236-200 |
| 25dBA | P Max | 1.92 |
| 25dBA | Q Max | 49.16 |
| Product Identification Details | |
| Brand | Noctua |
| Model | NF-A12x25 G2 |
| Serial Number | 9010018100686 |
| Product Specifications | |
| Manufacturer | |
| Bearing | SSO2 |
| Connector | PWM |
| Cable length (mm) | 200 |
| Daisy-chain | None |
| RGB Connector | None |
| RGB Daisy-chain | None |
| Cybenetics | |
| Max Speed (RPM) | 1818 |
| Max Airflow (CFM) | 61.26 |
| Max Static Pressure (mmAq) | 2.79 |
| Max Fan Noise Level (dBA) | 29.80 |
| Fan Max Current (A) | 0.16 |
| Fan Weight (gr) | 193 |
| Dimensions (W x H x D) | 120mm x 120mm x 25mm |
| Cybenetics Testing Information | |
| Lab ID | NC12000195 |
| Date of receipt | Jul 26, 2025 |
| Testing Date | Jul 29, 2025 |
| Report Issued Date | Jul 29, 2025 |
| Engineer Name | Georgios Theodoros Sarimpalas |
General Statement
Measurement uncertainty associated with the reported results was evaluated and estimated in accordance with JCGM 100:2008 (Guide to the Expression of Uncertainty in Measurement — GUM) and ISO/IEC 17025:2017, Clauses 7.6 and 7.2.
The uncertainty budget accounts for all significant identified contributors arising from the measurement process, instrumentation, test conditions, and operator interaction.
The reported expanded uncertainty U is obtained by multiplying the combined standard uncertainty uc by a coverage factor k = 2, corresponding to a confidence level of approximately 95 %, assuming a normal probability distribution.
Unless otherwise stated, the reported uncertainty applies only to the specific measurements performed and does not include long-term drift, aging effects, or future environmental changes.
Expanded Measurement Uncertainty by Measurement Type
| Measurement | Expanded Uncertainty U (k=2, norm) |
| Fan Air Flow | ±1.9296 % of reading (k=2) — e.g. ±3.77 CFM at 25 CFM, ±5.00 at 89 CFM, ±10.31 at 250 CFM |
| Fan Static Pressure | ±2.422 Pa |
Air flow uncertainty is relative to the reading: U(Q) = 2·√[(1.8200)² + (0.019296·Q)²] CFM, valid over the declared measuring range 2.4 – 250 CFM.
The reported static pressure uncertainty applies over the 0 – 20 mmAq (0 – 196.1 Pa) measuring range of the Long Win LW-9266 apparatus. The apparatus can be extended to 100 mmAq (981 Pa) with the high static pressure throttle device; the uncertainty of that extended range has not been separately verified and the value stated above does not apply to it.