सी एस आर्इ आर - राष्ट्रीय भौतिक प्रयोगषाला में स्वागत है
भारत का राष्ट्रीय मापिकी संस्थान एवं भौतिक विज्ञान के क्षेत्र में एक अग्रणी अनुसंधान प्रयोगषाला

Specimen copy of certificate & Test Report.

TDS Exemption Certificate.

TDS Exemption Certificate.

Calibration & Testing Charges

(*New charges are applicable from April 01, 2013)

The calibration and testing charges have been classified in the area of activities of the various sections of this laboratory. For calibration, the ‘parameters’ of measurement are given in the bracket just below the area of the activity. Testing areas are listed separately. The customers are supposed to know the ‘parameter(s)’ (like volume, torque, capacitance or magnetic flux etc.) for which the particular item is to be calibrated or the ‘area of testing’ for the testing of any sample. In case of any enquiry, you are requested to Contact CFCT .

Calibration Parameters Testing Areas
Optical Thin Films & Ceramics
(Thin Film Coating)
Optical Thin Films & Ceramics
(Optical Thin Film)
Multiferroics and Magnetics
(Magnetic Flux Density, Resonance Frequency, Magnetic Field, Magnetic Flux, Volt.Sec, Magnetic Power Loss, Permeability & Coerecivity and Turn Area )
Polymer & Soft Materials
(Contact Angle Measurement)
Atmospheric Chemistry
(Ozone Concentration)
Physics & Engineering of Carbon
(Carbon Materials)
Precise Timing Systems
(Time & Frequency)
Multiferroics and Magnetics
(Magnetic Properties & Magnetic Field)
Mass Standards
(Mass, Density, Volume & Viscosity)
Metals & Alloys 
(Mechanical Testing)
Standards of Dimension
(Length, Frequency, Angle, Form, Roughness, Squareness, Roundness, Flatness & Straightness)
Piezoelectric Sensors and Actuators
(Vibration Sensor)
Temperature & Humidity Standards
(Temperature & Humidity)
Atmospheric Chemistry
(Environmental Science)
Optical Radiation Standards
(Luminous Flux, Luminous Intensity, Color Temperature, Color Coordinates, Illuminance, Luminance, Irradiance, UV Intensity, Illuminance Responsivity, Spectral Responsivity, Transmittance, Color & Wavelength, Transmittance or Absorbance / Reflectance, Optical Density, Spectral Irradiance and Temperature (Infra Red))
Optical Radiation Standard 

Force and Hardness Standards
(Force, Torque & Hardness)

Acoustics, Ultrasonics & Vibration Stds
(Acoustic Materials, Noise & Vibration Measurements)
Pressure & Vaccum Standards
(Absolute, Hydraulic and Pneumatic Pressure)
Acoustics, Ultrasonics & Vibration Stds
Acoustics, Ultrasonics & Vibration Stds
(Sound Pressure & Vibration Amplitude)
Fluid Flow Measurement Standards 
(Fluid Flow)
Acoustics, Ultrasonics & Vibration Stds 
AC Power & Energy Standards
(AC Energy Meter)
LF, HF Impedance & DC Standards
(DC Voltage, DC Current, DC Resistance & DC Voltage, Current & Resistance)
Work & Services
(Electrical Engineering)
LF, HF Impedance & DC Standards
(Capacitance, Inductance, AC Resistance, AC Voltage Ratio, Dissipation Factor, LCR (Meter / Bridge))
X-Ray Analysis
(Powder and High Resolution X-Ray Diffraction Analysis, X-ray Fluorescence Analysis)
LF & HF Impedance & DC Standards
(DC High Voltage (>1 kV), DC High Voltage Divider Ratio, DC High Current & DC Low Resistance)
Electron & Ion Microscopy
(Electron Microscopy)
LF, HF Voltage, Current & Microwave Standards
(AC Voltage, AC Current, Frequency, AC-DC Voltage Transfer Difference, AC-DC Current Transfer Difference and AC-DC Voltage & Force )
Electron & Ion Microscopy
(Surface Analysis (SIMS))
LF, HF Voltage, Current & Microwave Standards
(Frequency, RF Voltage, RF Power, Effective Efficiency, Calibration Factor, Voltage Amplitude, AC Voltage & Frequency and Voltage Amplitude & Frequency)
EPR & IR Spectroscopy
(EPR Spectrometer)
LF, HF Voltage, Current & Microwave Standards
(Attenuation, VSWR, Reflection Coefficient, Phase )
Analytical Chemistry
(Chemical Analysis)
AC High Voltage & AC High Current Standards
(AC High Current, AC High Voltage, AC High Current Ratio, AC High Voltage Ratio, Voltage & Current Burden, Capacitance and Loss facor (Tan Delta), High Voltage Capacitance and Tan Delta)
AC Power & Energy Standards
(AC Energy, AC Power, Power Factor, AC Current & Voltage (For Power / Energy Meter))
Quantum Hall Resistance Standards
(Quantum Hall Resistance (QHR))
Nanoscale Measurements
(Length & Frequency)
Analytical Chemistry
(Certified Reference Materials )


Frequently Asked Questions

Q.1 How to know the feasibility of any particular calibration/testing work at NPL?

Ans. All the ‘parameters’ (like mass, temperature, force, AC/DC voltage, Impedance etc.) and ‘areas of testing’(like ultrasound, dimension, thin film, chemical analysis etc.) are listed on this web-page under "Calibration & Testing Charges"link.  For specialized job which is not listed here, you are requested to contact us.

Calibration and Testing Services

Content for this section is currently not available. Please check back after a few days or click here to contact the site administrator.

Site Calibration / Testing

As per our policy decision, we advice our customers to bring the instruments/samples in our Laboratory for their calibration/testing work.In exceptional circumstances, we do undertake the work on-site as per following guidelines:

i) The decision of accepting the on-site work of calibration/testing purely lies with NPL.

Calibration & Testing Request (CTR) Form

CTR form is basically an application form for the customers to apply for any calibration, testing or fabrication work at NPL. It has been carefully designed to get all the relevant information from the customers regarding their work.

The customers are requested to go through the guidelines for filling the CTR form.

Click here for : Guidelines for filling the CTR Form

Calibration & Testing Request (CTR) Form (pdf)



Besides calibration and testing facilities provided to the customers for maintaining the national traceability chain of measurement, NPL has developed the know-how for fabrication of some items to be used by the customers. The fabricated items are not available of the shelf as the fabrication is done as per customer’s demand and specifications. The customers are therefore requested to get the quotation and make the full payment in advance by Demand Draft in favor of ‘Director, National Physical Laboratory, New Delhi’, payable at New Delhi.

Additional Guidelines for Foreign Customers

1.Charges: The charges available on this website are not applicable for foreign customers. The customers are requested to contact us for calibration/testing charges applicable to them.

2.Payment of Charges: Our charges are given in Indian Rupee and are payable in US Dollar ($) in advance by Bank Demand Draft in English only. The customers are requested to convert the total charges in US Dollar ($) at the prevailing rates at the time of sending the instruments to NPL, New Delhi.

Information regarding payment of charges

  1. Visting Hours for customers :
    • 10.00 A.M.