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Standard Measurement Service List

The table below is a complete list of the standard measurement services provided by Photometric & Optical Testing Services. Should you not see what you need, or need assistance in determining the type of test that you need, please speak to one of our highly-trained customer service advisors or use our convenient enquiry form to submit details of your requirements. All services include a formal test report and data supplied electronically in the format of your choosing.


 
ORDER CODE DESCRIPTION   DATA PROVIDED
       
Integrating Sphere Measurement
 
SERV-IS A measurement of 2pi or 4pi spectral radiant flux (350-1050nm). Conforms to BS 13032, IES LM-79 and CIE 84. Auxiliary correction applied and NIST-traceable calibration. Includes standard test report   1. Spectral radiant flux (Watts/nm)
2. Luminous flux (lumens)
3. Scotopic flux (lumens)
4. S:P ratio
5. CIE 1931 2° chromaticity (xy)
6. Colour temperature (Kelvin)
7. Dominant wavelength (nm)
8. Colour rendering (CRI, RA, R1-14)
9. Power consumption (Watts)
10. Luminous efficacy (lumens/Watt)
11. Power factor
       
Goniophotometer Measurement (for "Photometric Data")
 
SERV-GO A 2pi steradian (hemispherical) measurement of directional luminous intensity with minimum resolution of 5° inclination and 15° azimuth. Data files provided in .ies (LM-63) and/or .ldt (EULUMDAT) formats. Files to be formatted as either absolute or relative (candelas per 1000 lumens) based upon the rated flux of the lamp/s. NPL traceable calibration. Includes standard test report   1. Luminous intensity vs angle (candelas)
2. Peak luminous intensity (candelas)
3. Beam angles (degrees)
4. Polar intensity chart (C0-180, C90-270)
5. Cone illuminance diagram
6. Luminaire luminous flux (lumens)
7. LOR (based upon rated flux of lamp/s)
8. CIE 1931 2° chromaticity (xy)
9. Colour temperature (Kelvin)
10. Dominant wavelength (nm)
11. Colour rendering (CRI, RA, R1-14)
12. Power consumption (Watts)
13. Luminous efficacy (lumens/Watt)
14. Power factor
       
SERV-GO-4PI As per SERV-GO but measurement is performed over 4pi steradians   As above
       
SERV-GO-CCT-2 As per SERV-GO but measurement is performed colorimetrically   As above but with addition of:
1. CCT (Kelvin) versus angle
       
SERV-GO-CRI-2 As per SERV-GO but measurement is performed spectroradiometrically   As above but with addition of:
1. CRI (RA, R1-14) versus angle
       
Photobiological Safety Measurement (IEC 62471:2006, BS EN 62471:2008)
       
SERV-RADHAZ Measurement of spectral irradiance or radiance (200-1700nm), NPL-traceable calibration. Includes standard test report with risk group computation   1. Spectral irradiance (W/cm2.nm)
2. Spectral radiance (W/sr.cm2.nm)
3. Risk group computation
       
Spot Luminance Measurement  
       
SERV-SPOTLUM Measurement of spectral radiance and/or irradiance (380-780nm). NIST-traceable calibration. Standard test report included   1. Spectral irradiance (W/cm2.nm)
2. Spectral radiance (W/sr.cm2.nm)
3. Luminance (cd/m2)
4. Illuminance (lux)
5. CIE 1931 2° chromaticity (xy)
6. Colour temperature (Kelvin)
7. Dominant wavelength (nm)
8. Colour rendering (CRI, RA, R1-14)
       
Spatial Luminance Measurement
       
SERV-2DLUM Measurement of spatial luminance performed with a ProMetric imaging colorimeter. NIST-traceable calibration, standard test report included   1. Spatial luminance (cd/m2)
2. CIE 1931 2° chromaticity (xy)
3. Colour temperature (Kelvin)
4. Dominant wavelength (nm)
       
Spatial Illuminance Measurement
       
SERV-2DLUX Measurement of spatial illuminance performed with a ProMetric imaging colorimeter and a Zenith diffuse reflectance target. NPL-traceable calibration, standard test report included   1. Spatial illuminance (lux) or angular
    luminous intensity (candelas)
2. CIE 1931 2° chromaticity (xy)
3. Colour temperature (Kelvin)
4. Dominant wavelength (nm)
       
Flash Photometry (BS EN 54-23 for Visual Alert Devices)
       
SERV-GO-FLASH Measurement of visual alert devices per EN 54-23. Illuminance (luminous intensity) measured as a function of angle. Standard test report included. PTB-traceable calibration   1. Effective luminous intensity (candelas)
    versus angle

 

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> Glossary of Terms

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