REPORT issued by an Accredited Testing Laboratory

Transcription

1 issued by an Accredited Testing Laboratory Contact person RISE Maria Nilsson Tengelin MTt7P (2) Measurement Science and Technology maria.nilssontengelin@ri.se Universelt AS Stasjonsveien 51 NO-0771 OSLO Norge Testing Measurement of photoluminescence according to DIN 675-1:2009 (2 appendices) Identification Object Four photoluminescent samples: AG-1AL size (0 8 mm 2 ) AG-2AL size (0 0 mm 2 ) AG-3AL size (0 0 mm 2 ) AG-1P size ( mm 2 ) See pictures in appendix 1. Object state Upon arrival the objects had no visual damages. Location Borås, Sweden Measurement date Dec, 2017 Measurement methods and procedures The samples were exposed during a time of 5 minutes at 00 lux from an unfiltered 150 W xenon lamp. The illuminance at the measuring plane was measured with a luxmeter, Hagner, Model S4. After 5 minutes the xenon lamp was turned off and a luminance meter, Photo Research Model 1980A, connected to a computer, was recording the luminance every minute for at least 14 hours. A measuring spot of about 50 mm was used. The samples were kept under dark conditions for at least 48 h prior to excitation. The colour during excitation and attenuation was measured with a spectrometer, Spectrascan PR-735. The excitation was done with the above light source at 00 lux for 5 minutes and the attenuation colour measurement started about 15 seconds after the lamp was switched off. In accordance with section 4.5 in DIN 675-1, a logarithmic parabolic extrapolation of the results was made in order to determine the time when the luminance is 0,3 mcd/m 2, the decay time. Measurement conditions Room temperature (23 ± 1) C Relative humidity (45 ± 5) % Illumination 00 lx perpendicular to the sample, Xenon lamp Results The results only refer to the objects specified in this document. Postal address Office location Phone / Fax / This report may not be reproduced other than in full, except Box 857 SE BORÅS Sweden Brinellgatan 4 SE BORÅS info@ri.se with the prior written approval of the issuing laboratory. Accred. No. 02 Testing ISO/IEC 17025

2 MTt7P (2) Table 1: Compilation of the results for luminance and calculated decay time. Sample ID Luminance (mcd/m 2 ) Decay time 2 min min 30 min 60 min 120 min (min) AG-1AL ,2 58 AG-2AL , AG-3AL ,2 29, AG-1P ,1 33, Table 2: CIE 1931 chromaticity coordinates for 2 standard observer. Sample ID During excitation During attenuation x y x y AG-1AL 0,370 0,451 0,275 0,584 AG-2AL 0,360 0,446 0,276 0,581 AG-3AL 0,355 0,433 0,275 0,579 AG-1P 0,359 0,445 0,275 0,580 Measuring uncertainty The measuring uncertainty is ±5 % of the measured luminance values and ±0,005 of the given values for x and y. The reported expanded uncertainty of measurement is stated as the standard uncertainty of measurement multiplied by the coverage factor k = 2, which for a normal distribution corresponds to a coverage probability of approximately 95%. The standard uncertainty has been determined in accordance with EA Publication EA-4/02. The long term stability of the calibrated object is not included in the reported expanded uncertainty of measurement. Equipment Xenon-lamp 150 W, SP inv.no Luminance meter Pritchard PR 1980, SP inv.no Luxmeter Hagner S4, SP inv.no Spectrometer Spectrascan PR-735, SP inv.no Measurement Science and Technology - Time and Optics Performed by Examined by Signature_1 Maria Nilsson Tengelin Signature_2 Stefan Källberg Appendices Pictures of the tested objects Measured luminance, table and diagrams

3 MTt7P (1) Appendix 1 Pictures of the tested objects AG-1AL front AG-2AL front AG-3AL front AG-1P front AG-1AL back AG-2AL back AG-3AL back AG-1P back

4 MTt7P (3) Appendix 2 Measured luminance, table and diagrams Table 1. Luminance during attenuation after 5 min exposure at 00 lux Time (min) Luminance (mcd/m 2 ) AG-1AL AG-2AL AG-3AL AG-1P , , ,0 89, ,2 80, ,7 62,9 72, ,1 57,4 66, ,0 52,8 60, ,4 75,7 48,6 55, ,6 70,2 45,1 51, ,0 65,3 42,0 48, ,5 61,0 39,2 44,9 0 74,5 57,1 36,7 42,0 5 70,1 53,7 34,5 39,5 1 66,0 50,6 32,6 37, ,5 47,8 30,7 35, ,2 45,2 29,1 33,2

5 Luminance (mcd/m 2 ) Luminance (mcd/m 2 ) REPORT MTt7P (3) Appendix Diagram 1. Luminance during attenuation after 5 min exposure at 00 lux, AG-1AL Diagram 2. Luminance during attenuation after 5 min exposure at 00 lux, AG-2AL.

6 Luminance (mcd/m 2 ) Luminance (mcd/m 2 ) REPORT MTt7P (3) Appendix Diagram 3. Luminance during attenuation after 5 min exposure at 00 lux, AG-3AL Diagram 4. Luminance during attenuation after 5 min exposure at 00 lux, AG-1P.