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NSCL maintains the following standards as the reference standards of AC voltage, AC current, power and energy for Syria and for the dissemination of the related units:
- A Fluke 5790A is the reference measurement standard of AC voltage, that depends on AC-DC thermal transfer technique.
- A Fluke 5790A and a Ballantine 1625A active shunt are the reference measurement standards of AC current.
- A Yokogawa 2885 watt converter is the reference measurement standard of AC power.
- A Yokogawa 2885 watt converter and a Yokogawa B9882CA V-F converter are the reference measurement standards of AC energy.
| Measured quantity/Calibrated item | Range | Expanded uncertainty (K=2) |
| AC Voltmeters | 100 mV to 1000 V (50 Hz to 100 kHz) | (100 to 250) ppm |
| 1 mV to 50 mV at 1 kHz | (300 to 800) ppm | |
| AC Voltage Calibrators | 100 mV to 1000 V (50 Hz to 100 kHz) | (80 to 200) ppm |
| 1 mV to 50 mV at 1 kHz | (200 to 500) ppm | |
| AC Ammeters | 100 μA to 20 A ( 50 Hz to 400 Hz) | (200 to 500) ppm |
| 20 A to 60 A ( 50 Hz to 400 Hz) | (500 to 1000) ppm | |
| AC Current Calibrators | 100 μA to 20A ( 50 Hz to 400 Hz) | (150 to 300) ppm |
| 20 A to 100 A ( 50 Hz to 400 Hz) | (300 to 500) ppm | |
| AC Current Transformers | 0.5 A to 200 A at 50 Hz | (100 ppm & 0.2 min) |
| AC Power Meters (Watt) | (3 V to 600 V) x (0.1 A to 30 A) ( 50 Hz to 400 Hz) | (100 to 500) ppm |
| Electronic Standard Energy Meters (Watt-hour) | (3 V to 600 V) x (0.1 A to 30 A) ( 50Hz-400 Hz) | (200 to 500) ppm |
Note: 100 mV and 1000 V can be calibrated up to 20 kHz only. NSCL can provide calibrations for other related equipment, such as Clamp meters up-to 1200 A, high voltage instruments up-to 50 kVac at 50 Hz and watt hour meters. How To Request Calibration Services
