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In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a² + b²]^1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)

India, NPLI (CSIR National Physical Laboratory of India)

Matrix or material	Analyte or component	Dissemination range of measurement capability		Range of certified values in reference materials
Matrix or material	Analyte or component	Amount-of-substance fraction in nmol/mol	Absolute expanded uncertainty in nmol/mol	Amount-of-substance fraction in	Absolute expanded uncertainty in
air	ozone	0 to 500

Uncertainty equation CMC : Q[1.0, 0.022x(O₃)]
The uncertainty is expressed in nmol/mol
Mechanism for measurement service delivery : Calibration service with SRP
The notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a² + b²]^1/2
Approved on 20 January 2016
Institute service identifier : 01
KCDB ID : APMP-QM-IN-000000UD-1

Frequency , Frequency : 1 MHz

General frequency source

Relative expanded uncertainty : 6.4E-12 Hz/Hz

Direct frequency measurement

Gate time : 10 s

Number of measurements : 100

Amplitude : > 0.5 V (50 ohm)

Excluded DUT's effect

Approved on 15 June 2011

Institute service identifier : NPLI/6

KCDB ID : APMP-TF-IN-000005UF-1

Frequency , Frequency : 5.00E6 Hz

General frequency source

Relative expanded uncertainty : 9.0E-14 Hz/Hz

Time interval measurement

Measurement time : 86400 s

Amplitude : > 1 V (50 ohm)

Excluded DUT's effect

Approved on 15 June 2011

Institute service identifier : NPLI/4

KCDB ID : APMP-TF-IN-000005UD-1

Sound measuring instruments , Free-field response level : 40 dB (reference: 20 µPa) to 130 dB (reference: 20 µPa)

Sound level meter

Absolute expanded uncertainty : 0.4 dB

IS 15575-2000/IEC 61672-1

Frequency : 315 Hz to 1000 Hz

Approved on 23 October 2009

Institute service identifier : AUV.NPL.1501

KCDB ID : APMP-AUV-IN-000005YG-1

Linear vibration , Charge sensitivity (modulus)

Accelerometer

Relative expanded uncertainty : 1.5 %

Comparison, ISO 16063-21

Frequency : 40 Hz < f <= 1.6 kHz

Approved on 12 January 2012

Institute service identifier : AUV.NPL.1201V

KCDB ID : APMP-AUV-IN-000005YL-1

AC power , AC power and energy: single phase (frequency <= 400 Hz), active energy : 10 Ws to 6.91E6 Ws

Energy meter

Relative expanded uncertainty

Uncertainty table

{"row_1":{"col_1":"","col_2":"Frequency range","col_3":"Voltage","col_4":"Current","col_5":"Power factor","col_6":"Expanded uncertainty"},"row_2":{"col_1":"10 Ws to 864000 Ws","col_2":"40 Hz to 70 Hz","col_3":"30 V to 288 V","col_4":"0.01 A to 30 A","col_5":"0.25 I/C to 1 I/C","col_6":"(50 to 60)/cosφ"},"row_3":{"col_1":"> 864000 Ws to 6912000 Ws","col_2":"40 Hz to 70 Hz","col_3":"288 V to 576 V","col_4":"> 30 A to 120 A","col_5":"0.25 I/C to 1 I/C","col_6":"(60 to 70)/cosφ"},"row_4":{"col_1":"40 Ws to 864000 Ws","col_2":"70 Hz to 400 Hz","col_3":"30 V to 288 V","col_4":"0.05 A to 30 A","col_5":"0.25 I/C to 1 I/C","col_6":"(70 to 200)/cosφ"},"row_5":{"col_1":"> 864000 Ws to 6912000 Ws","col_2":"70 Hz to 400 Hz","col_3":"> 288 V to 576 V","col_4":"> 30 A to 120 A","col_5":"0.25 I/C to 1 I/C","col_6":"(200 to 300)/cosφ"}}

The expanded uncertainties given in this table are expressed in µWh/Wh

(50 to 300)/cosφ

The uncertainty is expressed in µWh (Wh)^-1

Comparison

Frequency : 40 Hz to 400 Hz

Voltage : 30 V to 576 V

Current : 0.01 A to 120 A

Power factor : 0.25 I/C to 1 I/C

Time at maximum range: 100 s and at minimum range: 1800 s

Approved on 10 November 2014

Institute service identifier : NPLI/48

KCDB ID : APMP-EM-IN-000006RG-1

Radio frequency measurements , Scalar RF reflection coefficient and attenuation: attenuation in coaxials : 0.05 dB to 60 dB

Passive device: fixed / variable attenuator / attenuator and signal calibrator

Relative expanded uncertainty : 7.0E-3 dB/(10 dB)

Substitution technique

Frequency : 30 MHz

Approved on 10 November 2014

Institute service identifier : NPLI/74

KCDB ID : APMP-EM-IN-000006R8-1

Radio frequency measurements , Scalar RF reflection coefficient and attenuation: attenuation in coaxials : 0.1 dB to 60 dB

Passive device: fixed / variable attenuator

Relative expanded uncertainty : 2.0E-2 dB/(10 dB)

Intermediate frequency substitution technique

Frequency : 1 GHz to 18 GHz

Approved on 10 November 2014

Institute service identifier : NPLI/75

KCDB ID : APMP-EM-IN-000006R9-1

High voltage and current , AC high voltage ratio: ratio error : -0.02 to 0.02

Voltage transformer, V.T. bridge

Relative expanded uncertainty : 6.0E1 µV/V

Comparison

Voltage : 10 V to 100 kV (50 Hz)

Approved on 10 November 2014

Institute service identifier : NPLI/62

KCDB ID : APMP-EM-IN-000006R2-1

DC voltage (up to 1100 V) , DC voltage sources: intermediate values : 10 V to 1000 V

DC voltage source, multifunction calibrator

Relative expanded uncertainty : 1.5 µV/V to 4.5 µV/V

Uncertainty table

{"row_1":{"col_1":"","col_2":" Expanded uncertainty","col_3":"******** Instrument ********"},"row_2":{"col_1":"1 V","col_2":"80 nV","col_3":"Solid state voltage standard"},"row_3":{"col_1":"1.018 V","col_2":"80 nV","col_3":"Solid state voltage standard"},"row_4":{"col_1":"10 V","col_2":"350 nV","col_3":"Solid state voltage standard"},"row_5":{"col_1":"1.018 V to 12 V","col_2":"1 µV/V","col_3":"Standard cell"},"row_6":{"col_1":"10 µV to 10 V","col_2":"1.5 µV to 15 µV","col_3":"DC voltage source, multifunction calibrator"},"row_7":{"col_1":"10 V to 1000 V","col_2":"1.5 µV/V to 4.5 µV/V","col_3":"DC voltage source, multifunction calibrator"},"row_8":{"col_1":"10 µV to 1 mV","col_2":"1.5 µV","col_3":"DC voltmeter, multimeter"},"row_9":{"col_1":"1 mV to 10 V","col_2":"1.5 µV to 15 µV","col_3":"DC voltmeter, multimeter"},"row_10":{"col_1":"10 V to 1000 V","col_2":"1.5 µV/V to 4.5 µV/V","col_3":" Multifunction transfer standard, DC voltmeter"}}

Resistive divider

Approved on 10 November 2014

Institute service identifier : NPLI/4

KCDB ID : APMP-EM-IN-000006RI-1

DC voltage (up to 1100 V) , DC voltage ratios: up to 1100 V : 0.1 to 100

Resistive divider

Relative expanded uncertainty : 2 µV/V

Comparison with reference divider

Input voltage : 1 V to 1000 V

Approved on 10 November 2014

Institute service identifier : NPLI/8

KCDB ID : APMP-EM-IN-000006RK-1

High voltage and current , High DC current: sources : 10 A to 600 A

Direct current source

Relative expanded uncertainty : 5.0E2 µA/A

V-I method

Approved on 10 November 2014

Institute service identifier : NPLI/59-1

KCDB ID : APMP-EM-IN-000006QX-1

Pressure , Absolute pressure: gas medium : 6.5 kPa to 360 kPa

Pressure measuring device

Absolute expanded uncertainty

(1.4E-01)² + (12E-06p)²]^1/2, p pressure in Pa

p pressure in Pa

The uncertainty is expressed in Pa

Direct comparison with standard

Gas species : Nitrogen

Gas purity : 99.9 % or better

Temperature : 23 °C

Approved on 12 October 2009

Institute service identifier : NPLI/28

KCDB ID : APMP-M-IN-00000FXB-1

Pressure , Gauge pressure: gas medium : 0.036 MPa to 4 MPa

Pressure measuring device, pressure balance

Absolute expanded uncertainty

22E-06p

p pressure in MPa

The uncertainty is expressed in MPa

Direct comparison with standard

Gas species : Nitrogen

Gas purity : 99.9 % or better

Temperature : 23 °C

Approved on 12 October 2009

Institute service identifier : NPLI/30

KCDB ID : APMP-M-IN-00000FXD-1

Pressure , Gauge pressure: gas medium : 4 MPa to 8 MPa

Pressure measuring device, pressure balance

Absolute expanded uncertainty

26E-06p

p pressure in MPa

The uncertainty is expressed in MPa

Direct comparison with standard

Gas species : Nitrogen

Gas purity : 99.9 % or better

Temperature : 23 °C

Approved on 12 October 2009

Institute service identifier : NPLI/31

KCDB ID : APMP-M-IN-00000FXE-1

Viscosity , Kinematic viscosity : 100 mm²/s to 1.00E4 mm²/s

Newtonian liquids

Relative expanded uncertainty : 0.35 %

Reference liquids

Temperature : 20 °C to 100 °C

The uncertainty of the viscosity of water (ISO/TR 3666 (1998), 0.17%) is not taken into account

Approved on 24 May 2011

Institute service identifier : NPLI/26

KCDB ID : APMP-M-IN-00000FYL-1

Force , Force: compression, tension : 10 kN to 1000 kN

Force measuring device

Relative expanded uncertainty : 1.2E-2 %

Lever amplification

Approved on 24 March 2014

Institute service identifier : NPLI/17

KCDB ID : APMP-M-IN-00000FYQ-1

Force , Force: compression, tension : 500 N to 5.00E4 N

Force measuring device

Relative expanded uncertainty : 3.0E-3 %

Deadweight

Approved on 24 March 2014

Institute service identifier : NPLI/15

KCDB ID : APMP-M-IN-00000FYO-1

Force , Force: compression, tension : 1 kN to 100 kN

Force measuring device

Relative expanded uncertainty : 3.0E-3 %

Deadweight

Approved on 24 March 2014

Institute service identifier : NPLI/16

KCDB ID : APMP-M-IN-00000FYP-1

Spectral.-int. meas. for sources and detectors , Correlated colour temperature : 2000 K to 3000 K

Tungsten lamp

Absolute expanded uncertainty : 2.0E1 K

Colorimeter

Approved on 29 September 2001

KCDB ID : APMP-PR-IN-000004YE-1

Select Metrology Area

KCDB

CIPM MRA

CLASSIFICATION OF SERVICES