| SERVICE | PRODUCT | DETERMINANT | TECHNIQUE | PROCEDURE | LIMITATION / RANGE |
Optical metrology - Optical measuring equipment
| Interferometers; Spectrometer arrays; Spectroradiometers; Spectrum analysers;
| Wavelength;
| Comparison with a reference meter;
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CAPABILITY
Optical spectrum analysers, Interferometers, Spectroradiometers, Array spectrometers;
2 pm close to reference lines in the range 600 nm to 1 600 nm (vacuum wavelength);
100 pm in the range 600 to 1600 nm;
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| Luminance meters;
| Luminance;
| Comparison with a reference meter;
| Luminance meters, Chromameters and telespectroradiometers;
6% at 1 cd/m²;
reducing to 1.8% at 10 cd/m²;
remaining at 1.8% at 100 cd/m²;
reducing to 0.55% at 1 000 cd/m²;
remaining at 0.55% at 10 000 cd/m²;
increasing to 1.0% at 30 000 cd/m²;
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| Chromameters and telespectroradiometers;
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| Bilirubin meters; Blue light radiometers; Filter radiometer; Ultraviolet radiometers; UVA meters; UVB meters; UVC meters;
| Irradiance;
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CAPABILITY
3.2% for irradiance of 11 mW/cm²;
falling to 2.6% for irradiance of 1.4 mW/cm²;
falling to 2.5% for irradiance of 100 μW/cm²;
for monochromatic sources near 254 nm;
5.5% for irradiance of 1 mW/cm²;
falling to 3.8% for irradiance of 25 μW/cm²;
rising to 4.5% for irradiance of 5 μW/cm²;
for monochromatic sources near 365 nm;
For significantly different source spectra, an additional uncertainty componentwhich depends on the spectrum and may be in the order of 2% (k=1) is added tothe uncertainty analysis;
5% for bilirubin treatment sources (blue light);
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| Linearity; Responsivity;
| Comparison with a reference meter;
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| Broadband responsivity;
Response linearity;
Spectral responsivity;
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CAPABILITY
Broadband responsivity;
UV/visible/IR radiation;
0.2% for irradiances in the range 100 μW/cm² to 3 W/cm²;
Response linearity;
0.01% for a 5:1 range of response
Spectral responsivity;
7.0% at 220 nm;
reducing linearly to 3.0% at 230 nm;
reducing linearly to 0.9% at 240 nm;
reducing linearly to 0.27% at 360 nm;
reducing linearly to 0.12% at 650 nm;
increasing linearly to 0.40% at 950 nm;
0.40% in the range 950 to 1 655 nm;
increasing linearly to 3.0% at 1 685 nm;
increasing linearly to 3.2% at 1 700 nm;
for incoherent sources;
0.02% at selected visible and near infrared laser lines measured using cryogenic radiometry;
0.36% at power levels 1.0 μW to 1.0 mW;
0.7% at power levels from 1.0 mW to 100 mW using laser line sources in the range 360 nm to 1650 nm;
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| Bilirubin meters; Blue light radiometers; Filter radiometer; Illuminance meters; Light meters; Luxmeters; Photometers; Photometric detectors; Ultraviolet radiometers; UVA meters; UVB meters; UVC meters;
| Cosine correction;
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CAPABILITY
Photometers;
0.1% for field angles greater than 20 degrees;
Ultraviolet radiometers;
1% for field angles greater than 5 degrees;
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| Illuminance meters; Laser energy meters; Laser power meters; Light meters; Luxmeters; Photodiodes; Photometers; Photometric detectors; Radiometers;
| Linearity;
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CAPABILITY
Response linearity;
0.01% for a 5:1 range of response;
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| Illuminance meters; Light meters; Luxmeters; Photometers; Photometric detectors;
| Illuminance;
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CAPABILITY
0.5% at 1 mlx;
reducing to 0.39% at 1 lx;
0.39% from 1 lx to 50 lx;
Increasing to 8% at 200 klx;
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| Infra-red radiometers; Thermal detectors; Thermopiles;
| Irradiance;
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| Measurement of response to a black-body source at a radiance temperature of 800°C;
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CAPABILITY
0.2% irradiance level near 370 μW/cm²;
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Optical metrology - Optical standards and reference equipment
| Integrating sphere sources; Luminance standard sources;
| Luminance;
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CAPABILITY
6% at 1 cd/m²;
reducing to 1.8% at 10 cd/m²;
remaining at 1.8% at 100 cd/m²;
reducing to 0.55% at 1 000 cd/m²;
remaining at 0.55% at 10 000 cd/m²;
increasing to 1.0% at 30 000 cd/m²;
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| Integrating sphere sources; Luminance standard sources; Spectral radiance standard sources;
| Spectral radiant flux;
| Comparison with a reference meter;
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| Low brightness sources
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CAPABILITY
Spectral radiance of Spectral radiance sources, Low brightness sources, Integrating sphere sources and Luminance standard sources;
10% at 240 nm;
reducing linearly to 6% at 245 nm;
reducing linearly to 3.4% at 250 nm;
reducing linearly to 2.0% at 270 nm;
reducing linearly to 1.7% at 290 nm;
reducing linearly to 1.0% at 390 nm;
reducing linearly to 0.8% at 555 nm;
incresing linearly to 3.7% at 2 500 nm;
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| Broadband sources;
| Broadband irradiance;
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| Broadband irradiance from Planckian Radiators and Blackbody Sources;
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CAPABILITY
Broadband irradiance from Planckian Radiators and Blackbody Sources;
0.2% irradiance level near 370 μW/cm²
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| Incandescent lamps;
| Distribution temperature;
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| Planckian radiators, Blackbody radiators, Incandescent sources;
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CAPABILITY
Planckian radiators, Blackbody radiators, Incandescent sources;
(2.602 x 10â»â¶ (DT)² - 1.625 x 10⻳ (DT) + 1.950) K in the range 1 600 K to 3 400 K;
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| Laser line sources; Laser sources;
| Radiant power - Laser line sources;
| Comparison with a reference meter;
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CAPABILITY
0.36% at power levels from 1.0 μW to 1.0 mW
0.7% at power levels from 1.0 mW to 100 mW
in the range 360 nm to 1650 nm
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| Illuminance standard sources; Incandescent lamps;
| Illuminance;
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CAPABILITY
0.39% from 1 mlx to 50 lx;
Increaing to 0.6% at 12 klx;
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| Discharge sources - Lamps; Incandescent lamps; LED sources; Solid state lighting (SSL) sources;
| Luminous intensity;
| Comparison with a reference meter;
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| Luminous intensity standard sources;
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CAPABILITY
Incandescent lamps and luminous intensity standard sources;
0.34% near 250 cd;
Other sources;
0.34% for broad-band sources uncertainty, wavelength dependent for line sources;
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| Discharge sources - Lamps; Incandescent lamps; LED sources; Solid state lighting (SSL) sources;
| Correlated colour temperature;
| Comparison with a reference meter;
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| Colour temperature standard sources
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CAPABILITY
Colour temperature standard sources, incandescent lamps, discharge sources, LED sources, other Solid state lighting (SSL) sources;
6 K for temperatures near 2 856 K;
3 to 50 K in the range 1700 to 11,000 K;
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| Chromaticity;
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CAPABILITY
Incandescent sources;
0.00022 for CIE 1931 x, y coordinates;
Other sources;
0.00046 for CIE 1931 x, y coordinates;
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| Discharge sources - Lamps; Incandescent lamps; LED sources; Solid state lighting (SSL) sources;
| Luminous flux;
| Comparison with a reference meter;
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| Luminous flux standard sources
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CAPABILITY
Incandescent lamps and luminous flux standard sources;
0.6% for values near 1 000 lm and 2 500 lm;
Other sources;
0.7% dependent on source properties;
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| Discharge sources - Lamps; Incandescent lamps; LED sources; Solid state lighting (SSL) sources; Spectral irradiance standard sources;
| Spectral irradiance;
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CAPABILITY
4.6% at 250 nm;
reducing linearly to 1.8% at 300 nm;
reducing linearly to 1.0% at 450 nm;
reducing linearly to 0.9% at 500 nm;
remaining at 0.9% at 600 nm;
increasing linearly to 2.3% at 1 600 nm;
increasing linearly to 3.1% at 1 800 nm;
increasing linearly to 4.2% at 2 500 nm;
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| UVA sources; UVB sources; UVC sources;
| Broadband irradiance;
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| Broadband irradiance from UVA Sources, UVB Sources, UVC Sources, Blue Light Sources, Solar Simulators, Filtered Sources;
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CAPABILITY
Broadband irradiance from UVA Sources, UVB Sources, UVC Sources, Blue Light Sources, Solar Simulators, Filtered Sources;
3.2% for irradiance of 11 mW/cm²;
falling to 2.6% for irradiance of 1.4 mW/cm²;
falling to 2.5% for irradiance of 100 μW/cm²;
for monochromatic sources near 254 nm;
5.5% for irradiance of 1 mW/cm²;
falling to 3.8% for irradiance of 25 μW/cm²;
rising to 4.5% for irradiance of 5 μW/cm²;
for monochromatic sources near 365 nm;
For significantly different source spectra, an additional uncertainty component which depends on the spectrum and may be in the order of 2% (k=1) is added to the uncertainty analysis;
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