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Calibration & Testing

For more than three decades, NPK Founders has been providing calibration services for measuring instruments in Temperature, electrical / electronic & dimensional parameters. Since 2004, NPK has been awarded prestigious accreditation by NABL (National Accreditation Board for Testing & Calibration Laboratories, New Delhi- An autonomous body formed under Quality Council of India with MRA arrangements with International Laboratory Accreditation Cooperation (ILAC).

NABL Certificate & Scope of Accredition

NPKLAB is accredited in below fields & parameters

Electro-Technical

Parameter	Range
Voltage	0 to 1000VDC 0 to 1000VAC
High Voltage	0 to 100 kVAC 0 to 100 kVDC
Current	0 to 1000 AAC 0 to 1000 ADC
Resistance	100 uOhm to 400 MOhm
High Resistance	0 to 1 GOhm
Frequency	0 to 10 MHz & 250 MHz (for bandwidth)
Temperature(by simulation)	-200 to 850 °C for RTD & 0 to 1350 °C for thermocouples
Inductance	Up to 10H
Capacitance	Up to 100 uF
Power	Up to 300 kW
CRO / DSO calibration	Up to 100 MHz

Above Calibration facilities are utilised for : Multimeter Clibration, Clamp meter / tong tester calibration, ammeters & voltmeters, VAF Meters, Single phase / three phase power analysers

Mechanical Calibration

Parameter	Range
Pressure	0 to 1000 bar
Vacuum	-700 to 0 mmHg
Coating thickness gauge & foils	0 to 1000 micron
RPM & Tachometers	10 to 99000 rpm
Glass hydrometers	0.7 to 2.0 g/cc
Viscosity Cup	30 to 150 cSt
Ultrasonic Thickness gauge	Up to 200 mm
Weighing Balance (0.1 mg / 1 mg)	Up to 5 kg
Vernier Caliper & Height gauge	Up to 300 mm
Torque Wrenches (All types)	0.5 to 500 Nm
Torque screw drivers	0.5 to 500 Nm

Thermal Calibration

Parameter	Range
Temperature	-80 to +1000 °C
Infra red Thermometer, Thermal imager	+40 to +500 °C
Humidity	20 to 95%RH @ 25 °C
Oven Mapping	0 to 250 °C

Although some parameters are yet to be covered under NABL accreditation, NPKLAB fulfils all requirements of traceability and technical competency for its unique facility for Flow calibration :

Parameter & Instruments / Equipment	Range of calibration
Liquid Flow measuring instruments	0.05 to 25 ml/min
Gas flow measuring instruments using dry air, Nitrogen, Hydrogen as medium gas	0.5 to 2000 ml/min
Anemometer / Air velocity meter	0.2 to 40 m/s
Wet gas flow meter	1000 ml

NPKLAB considers itself as a part of scientific community dedicated to standardisation for the benefit of the industry. It is the responsibility of every community member to establish the traceability chain where the facilities are lacking. NPKLAB has developed its own methods by referring to all available technical content, published papers, technical bulletins of leading manufacturers in instrumentation which has been validated & endorsed time to time by our valued customers.

NPKLAB specialises in calibrating non-standard instruments in various segments :

Although some parameters are yet to be covered under NABL accreditation, NPKLAB fulfils all requirements of traceability and technical competency for its unique facility for Flow calibration :

Parameter & Instruments / Equipment	Range of calibration
Liquid Flow measuring instruments	0.05 to 25 ml/min
Gas flow measuring instruments using dry air, Nitrogen, Hydrogen as medium gas	0.5 to 2000 ml/min
Anemometer / Air velocity meter	0.2 to 40 m/s
Wet gas flow meter	1000 ml

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Calibration & Testing

NABL Certificate & Scope of Accredition

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