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Chemistry

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General Information:

Address: No.18,Bei San Huan
Dong Lu,Chaoyang
Dist,Beijing,P.R.China, 100013

ws@nim.ac.cn
Tel:+86-10-64525678

Search CMCs:

Photometry and Radiometry

No.

Calibration or Measurement Service

Measurand Level or Range

Measurement Conditions/Independent Variable

Expanded Uncertainty

Class or Quantity

Measurand(Quantity Instrument or Artifact)

Instrument Type or Method

Minimum value

Maximum value

Units

Parameter

Specifications

Value

Units

Coverage Factor

Level of confidence

Is the expanded uncertainty a relative one?

Matrix uncertainty

1

Luminous intensity

Tungsten lamp

Standard lamps and photometer, equal distance method

1

5000

cd

Correlated colour temperature

2300 K to 2900 K

0.5

%

2

95%

Yes

 

2

Illuminance responsivity, tungsten source

Illuminance meter

Standard lamp

 

 

A/lx

Illuminance

1 lx to 2000 lx

0.5

%

2

95%

Yes

 

 

 

 

 

Correlated colour temperature

2856 K

 

 

 

 

 

 

3

Illuminance responsivity, tungsten source

Illuminance meter

Standard lamp

 

 

Reading/lx

Illuminance

1 lx to 2000 lx

0.5

%

2

95%

Yes

 

 

 

 

 

Correlated colour temperature

2856 K

 

 

 

 

 

 

4

Luminous flux

Tungsten lamp

Goniophotometer or integrating sphere

3

1500

lm

Correlated colour temperature

2300 K to 2900 K

0.7

%

2

95%

Yes

 

5

Luminous flux

Tungsten lamp

Goniophotometer or integrating sphere

1500

20000

lm

Correlated colour temperature

2300 K to 2900 K

1

%

2

95%

Yes

 

6

Illuminance

Tungsten lamp

Standard lamps

0.2

3000

lx

Correlated colour temperature 

2856 K

0.5

%

2

95%

Yes

 

7

Luminance

Tungsten-based source

Standard luminous intensity lamps and standard reflectance plate

3

1500

cd/m2

Correlated colour temperature

2856 K

1

%

2

95%

Yes

 

8

Responsivity, spectral, power

Broad band detector

Double grating monochrometer

 

 

A/W

Wavelength range

300 nm to 400 nm

5

%

2

95%

Yes

 

 

 

 

 

Bandwidth

< 10 nm

 

 

 

 

 

 

 

 

 

 

Power level

0.1 µW to 10 µW

 

 

 

 

 

 

9

Responsivity, spectral, power

Broad band detector

Double grating monochrometer

 

 

A/W

Wavelength range

400 nm to 1000 nm

2, varies with wavelen gth

%

2

95%

Yes

 

 

 

 

 

Bandwidth

1 nm to 9 nm

 

 

 

 

 

 

 

 

 

 

Power level

0.1 µW to 100 µW

 

 

 

 

 

 

10

Responsivity, spectral, power

Broad band detector

Double grating monochrometer

 

 

A/W

Wavelength range

1000 nm to 1600 nm

3,  varies with wavelen gth

%

2

95%

Yes

 

 

 

 

 

Bandwidth

3 nm

 

 

 

 

 

 

 

 

 

 

Power level

0.1 µW to 10 µW

 

 

 

 

 

 

11

Irradiance, spectral

Tungsten lamp

Spectroradiometer

2.00E-05

4.00E-01

Wm-2 nm-1

Wavelength range

250 nm to 400 nm

2.4 to 1.8 varies with wavelength

%

2

95%

Yes

 

 

 

 

 

Bandwidth

UV, 2 nm

 

 

 

 

 

 

12

Irradiance, spectral

Tungsten lamp

Spectroradiometer

2.00E-05

4.00E-01

Wm-2 nm-1

Wavelength range

400 nm to 800 nm

1.8 to 1.0 varies with wavelength

%

2

95%

Yes

 

 

 

 

 

Bandwidth

VIS, 1 nm

 

 

 

 

 

 

13

Irradiance, spectral

Tungsten lamp

Spectroradiometer

2.00E-05

4.00E-01

Wm-2 nm-1

Wavelength range

800 nm to 2500 nm

1.0 to 4.2, varies with wavelength

%

2

95%

Yes

 

 

 

 

 

Bandwidth

IR, 3 nm

 

 

 

 

 

 

14

Reflectance, diffuse, spectral

Spectrally-neutral material

Integrating sphere spectrophotometer

1.00E-02

1

 

Wavelength range

380 nm to 780 nm

1.6

%

2

95%

Yes

 

 

 

 

 

Bandwidth

2 nm to 3 nm

 

 

 

 

 

 

 

 

 

 

Specific measurement conditions

0/d

 

 

 

 

 

 

15

Reflectance, diffuse, spectral

Spectrally-neutral material

Spectrophotometer

1.00E-01

1

 

Wavelength range

800 nm to 2000 nm

1

%

2

95%

Yes

 

 

 

 

 

Bandwidth

2 nm to 20 nm

 

 

 

 

 

 

 

 

 

 

Specific measurement conditions

0/d

 

 

 

 

 

 

16

Correlated color temperature

Tungsten lamp

Standard color temperature lamps

2300

3200

K

 

 

20

K

2

95%

No

 

17

Responsivity

Fiber optical power meter

Laser power calibration facility

1

-60

dBm

Wavelengths

850 nm, 1310 nm and 1550 nm

3

%

2

95%

Yes

 

 

 

 

 

Power level

1 dBm to ­60dBm

 

 

 

 

 

 

18

Responsivity, laser, power

General detector

Comparison

 

 

A/W, V/W, Reading/W, W

Wavelengths

532 nm, 632.8 nm, 650 nm, 670 nm, 780 nm, 850 nm, 1064 nm, 1310 nm, 1550 nm

2

%

2

95%

Yes

 

 

 

 

 

Power level Type of detector

0.1 mW to 100 mW photodiode or broadband 

 

 

 

 

 

 

19

Responsivity, laser, power

General detector

Comparison

 

 

A/W, V/W, Reading/W, W

Wavelengths

1064 nm, 10600 nm

2

%

2

95%

Yes

 

 

 

 

 

Power level

0.1 W to 70 W

 

 

 

 

 

 

 

 

 

 

Type of detector

broadband

 

 

 

 

 

 

20

Laser power, spectral total radiant

Laser

Radiometer

0.1

100

mW

Wavelength range

300 nm to 2000 nm

2

%

2

95%

Yes

 

 

 

 

 

Type of laser

gas, solid state, semiconductor

 

 

 

 

 

 

21

Laser power, spectral total radiant

Laser

Laser power meter

0.1

70

W

Wavelength range

300 nm to 11000 nm

2

%

2

95%

Yes

 

 

 

 

 

Type of laser

gas, solid state, semiconductor

 

 

 

 

 

 

22

Responsivity, laser, energy

General detector

Comparison

 

 

A/J, V/J, Reading/J, J

Wavelengths

532 nm, 1064 nm

2

%

2

95%

Yes

 

 

 

 

 

Energy level Type of  detector

0.1 J to 30 J  photodiode or broadband  

 

 

 

 

 

 

23

Responsivity, UV, broadband irradiance

UVA radiometer

Reference spectral irradiance lamp and spectroradiometer 

 

 

A/(W/m2) or V/(W/m2) or Reading/(W/m2)

Wavelength range

315nm-400nm

5

%

2

0.95

Yes

 

 

 

 

 

Irradiance level

0.001 to 200 W/(m2)

 

 

 

 

 

 

 

 

 

 

Type of source

Hg lamps

 

 

 

 

 

 

24

Responsivity, UV, broadband irradiance

UV365 radiometer

Reference spectral irradiance lamp and spectroradiometer 

 

 

A/(W/m2) or V/(W/m2) or Reading/(W/m2)

Wavelength range

Centre wavelength:365nm Bandwidth≤10nm

5

%

2

0.95

Yes

 

 

 

 

 

Irradiance level

0.001 to 200 W/(m2)

 

 

 

 

 

 

 

 

 

 

Type of source

Hg lamps

 

 

 

 

 

 

25

Responsivity, UV, broadband radiant exposure

UVA radiometer

Reference spectral irradiance lamp and spectroradiometer 

 

 

A/(J/m2) or V/(J/m2) or Reading/(J/m2)

Wavelength range

315nm-400nm

5

%

2

0.95

Yes

 

 

 

 

 

Irradiance level

0.001 to 200 W/(m2)

 

 

 

 

 

 

 

 

 

 

Exposure time

1s to 3600 s

 

 

 

 

 

 

 

 

 

 

Type of source

Hg lamps

 

 

 

 

 

 

26

Responsivity, UV, broadband radiant exposure

UV365 radiometer

Reference spectral irradiance lamp and spectroradiometer 

 

 

A/(J/m2) or V/(J/m2) or Reading/(J/m2)

Wavelength range

Centre wavelength:365nm Bandwidth:≤10nm

5

%

2

0.95

Yes

 

 

 

 

 

Irradiance level

0.001 to 200 W/(m2)

 

 

 

 

 

 

 

 

 

 

Exposure time

1s to 3600 s

 

 

 

 

 

 

 

 

 

 

Type of source

Hg lamps

 

 

 

 

 

 

27

Transmittance, regular, spectral

Spectrally-neutral material

Reference spectrophotometer

0.01

1

1

Wavelength range

250nm to 780nm

0.5~0.3

%

2

0.95

Yes

 

 

 

 

 

Bandwidth

1nm to 5nm

 

 

 

 

 

 

28

Wavelength

Spectrally-selective transmitting material

spectrophotometer

200

2000

nm

Bandwidth

0.1nm to 2nm

0.1~0.4(depends on the sample or Spectral range)

nm

2

0.95

No

 

29

Responsivity, spectral, power

Broad band detector

Double grating monochrometer

 

 

A/W

Wavelength range

200 nm to 300 nm

5-2varies with wavelength

%

2

95%

Yes

 

 

 

 

 

Bandwidth

< 10 nm

 

 

 

 

 

 

 

 

 

 

Power level

0.1 µW to 10 µW

 

 

 

 

 

 

30

Wavelength

Optical Spectrum Analyser

Comparison

600

1700

nm

Power level

10dBm to -40dBm

0.1

nm

2

0.95

No

CNAS

31

Wavelength

Fiber optic source/Stabilized laser sources 

Optical Spectrum Analyser

600

1700

nm

Power level

10dBm to -40dBm

0.1

nm

2

0.95

No

CNAS

32

Illuminance responsivity, tungsten source

Illuminance meter

Standard lamp

 

 

A/lx

Illuminance

0.2 lx to 3000 lx

0.5

%

2

95%

Yes

CNAS

 

 

 

 

Correlated colour temperature

2856 K

 

 

 

 

 

 

33

Luminance

Tungsten-based source

Standard luminous intensity lamps and standard reflectance plate

0.06

0.5

cd/m2

Correlated colour temperature

2856 K

1.8

%

2

95%

Yes

CNAS

34

attenuation

Fiber optic attenuator

Fiber optic power meter

0

100

dB

Wavelengths

850nm1310nm1550nm

0.02

dB

2

95%

No

CNAS

35

Optical return loss

Optical return loss analyser

Fiber optic power meter

0

60

dB

Wavelengths

1310nm1550nm

1

dB

2

95%

No

CNAS

36

Responsivity, UV, broadband irradiance

UV Radiometer

Reference UV Radiometer
(Comparison)

0.005

1~50

mW/cm2

Wavelength Range

UVA1:(320-390)nm,
UVA2:365nm,
UVB:(290-320)nm,
UVC:253.7nm

7.2~20

%

2

95%

No

CNAS

37

Responsivity, UV, broadband irradiance

UVB Radiometer

Reference spectral irradiance lamp and spectroradiometer

0.005

0.5

mW/cm2

Wavelength Range

UVB:(290~320)nm

5

%

2

95%

No

CNAS

38

Responsivity, UV, broadband irradiance

UV254 Radiometer

Reference spectral irradiance lamp and spectroradiometer

0.005

0.3

mW/cm2

Wavelength Range

Centre wavelength:254nm Bandwidth:≤10nm

5

%

2

95%

No

CNAS

39

Responsivity, UV, broadband radiant exposure

UVB Radiometer

Reference spectral irradiance lamp and spectroradiometer

0.005

0.5

mW/cm2

Wavelength Range

UVB:(290~320)nm

5

%

2

0.95

No

CNAS

40

Responsivity, UV, broadband radiant exposure

UV254 Radiometer

Reference spectral irradiance lamp and spectroradiometer

0.005

0.3

mW/cm2

Wavelength Range

Centre wavelength:254nm Bandwidth:≤10nm

5

%

2

0.95

No

CNAS

41

Haze

Hazemeter

Haze standard

0.1

35

1

 

 

0.3

1

2

0.95

No

CNAS

42

Haze

Haze standard

Haze standard measurement device

0.1

35

1

 

 

0.3

1

2

0.95

No

CNAS

43

tristimulusX,Y,Z,chromaticityx,y

color standard

comparison method

X,Y,Z1.0x,y:0

X,Y,Z100.0x,y:1

1

Geometric measurement conditions

0/d;d/0;0/45;45/0

U(Y):1.6;U(x,y):0.0044

1

2

0.95

No

CNAS

44

whiteness

whiteness meter

series white standards

1

100

1

Geometric measurement conditions

0/d;d/0;0/45;45/0

2.5

1

2

0.95

No

CNAS

45

tristimulusX,Y,Z,chromaticityx,y

colorimeter and color difference meter

color standards

X,Y,Z1.0x,y:0

X,Y,Z100.0x,y:1

1

Geometric measurement conditions

0/d;d/0;0/45;45/0

3

1

2

0.95

No

CNAS

46

Normal total radiation emissivity

Infrared radiation material

Standard blackbodyInfrared radiometer

0.2

1

 

Radiation intensity

Radiation intensity(40640) W•m-2•sr-1Measurement of temperature:(60-120°C

0.02

%

2

0.95

No

CNAS

47

Spectral distribution

Fiber optic source

Optical Spectrum Analyser,Fiber optic power meter

-80

27

dBm

Wavelengths

600nm1700nm

2

2

0.95

Yes

CNAS

48

linearity

Fiber optic power meter

Superposition method

-90

10

dBm

Wavelengths

1310nm1550nm

0.2

2

0.95

Yes

CNAS

49

Average fiber optic power

SDH analyser

Fiber optic power meter

-80

10

dBm

Wavelengths

1310nm1550nm

3

2

0.95

Yes

CNAS

50

Responsivity, spectral  irradiance

Spectroradiometer, spectrometer

Reference spectral irradiance lamp (comparison)

/

/

A/(W/m2) orV/(W/m2) or Reading/(W/m2)

Wavelength Range

300nm~1100nm

8

%

2

0.95

No

CNAS

51

Illuminance

Fluorescent Photometer

Comparison

0.1

500

lx

Type of source

100W incandescent lamp

8

%

2

0.95

Yes

CNAS

52

Irradiance

Fluorescent Photometer

Comparison

0.1

2.8

mW/cm2

Type of source

black light

22

%

2

0.95

Yes

CNAS

53

Solar simulator spectral mismatch

spectral mismatch

spectrometer

/

/

W/m2.nm)

Wavelength Range

300nm~1100nm

12

2

0.95

No

CNAS

54

solar simulator irradiance non-uniformity and temporal instability

irradiance non-uniformity and temporal instability

reference solar cell

0

10

Irradiance Area

 

2

2

0.95

No

CNAS

55

I-V Curve Tracer

Short-circuit current/Open-circuit voltage

solar simulator

mA,V

 

current:(0.03~10)A;Voltage:(3~300)V

2

2

0.95

No

CNAS

56

Pyranometer

sensitivity

solar simulator

300

3000

nm

irradiance Intensity

(200~1200)W/m2

2

2

0.95

No

CNAS

57

Total Luminous Flux

fluorescent lamp

Integrating sphere or goniophotometer

100

10000

lm

Correlated colour temperature

5000 K to 10000 K

2

%

2

0.95

Yes

CNAS

58

Lminous intensity

headlamp tester of motor vehicle

the measurement equipment for  headlamp tester of motor vehicle

2.0×103

6.0×104

cd

measurement distance

≥7m

6

%

2

0.95

Yes

CNAS

59

visual desity

black and white step tablet

densitometer

0

5

D

geometral condition

d/0

0.005(D<4.0)      0.01(4.0≤D<5.0)

D

2

0.95

No

CNAS

60

reflect desity

reflect desity step tablet

reflectometer

2

2.5

1

geometral condition

0/45

0.01

 

2

0.95

Yes

CNAS

61

Standard Smokemetric Tablet

Filter-type
smoke sumber

 the comparative method

1

10

1

smoke value

0 to 10

0.2

%

2

0.95

Yes

CNAS

62

distribution temperature

Tungsten lamp

Standard color temperature lamps

2300

3200

K

Wavelengths

380nm-780nm

20

K

2

0.95

Yes

CNAS

63

Color,emitted,x,y

light source

standard color temperature lamps,light sources

 

 

 

Bandwidth

1nm-5nm

0.002-0.004

 

2

0.95

Yes

CNAS

64

Radiance, spectral

Tungsten lamp

Spectroradiometer

1.00E-05

0.4

Wm-2 nm-1sr -1

Wavelength range

250 nm to 400 nm

2.2 to 1.6 varies with wavelength

%

2

0.95

Yes

CNAS

 

 

 

 

Bandwidth

UV, 2 nm

 

 

 

 

 

 

65

Radiance, spectral

Tungsten lamp

Spectroradiometer

1.00E-05

0.4

Wm-2 nm-1sr -1

Wavelength range

400 nm to 800 nm

1.6 to 1.0 varies with wavelength

%

2

0.95

Yes

CNAS

 

 

 

 

Bandwidth

VIS, 1 nm

 

 

 

 

 

 

66

Radiance, spectral

Tungsten lamp

Spectroradiometer

1.00E-05

0.4

Wm-2 nm-1sr -1

Wavelength range

800 nm to 2500 nm

1.0 to 4.0, varies with wavelength

%

2

0.95

Yes

CNAS

 

 

 

 

Bandwidth

IR, 3 nm