[/fusion_text]Test Certificate No. 0913-2015-02 regarding the suitability of the RetroTek-M Mobile Pavement Retroreflectometer for measuring the coefficient of retroreflected luminance RL of the surfaces of road markings.[/fusion_text]

Direct quotes from the StrausZert Test Certificate:

Accuracy compared with Hand-Held Retroreflectometers:

“The test confirms that the measuring system RetroTek-M provides, within the scope of an acceptable measuring accuracy, the same measured values of the coefficient of retroreflected luminance RL as a portable, handheld measuring device”.

Repeatability at various speeds:

“The coefficient of retroreflected luminance RL can be detected with a good measuring accuracy by the measuring system RetroTek-M, independent of the measuring velocity”.

Test Conclusion:

“The RetroTek-M Mobile Pavement Retroreflectometer is hereby deemed to be well suitable for measuring the coefficient of retroreflected luminance RL of road markings according to the measuring geometry and measuring conditions given in the European Standard EN 1436.”

EN 1436: StrAus-Zert Test Certification (English)
EN 1436: StrAus-Zert Test Certification (Deutsch)

Test Certificate No. 0913-2017-04 regarding the suitability of the RetroTek-MU Mobile Pavement Retroreflectometer for measuring the coefficient of retroreflected luminance RL of the surfaces of road markings.

Direct quotes from the StrausZert Test Certificate:

Accuracy compared with Hand-Held Retroreflectometers:

“The tests confirm that the measuring system RetroTek-MU provides, within the scope of an acceptable measuring accuracy, the same measured values of the coefficient of retroreflected luminance RL as a portable, handheld measuring device. The accuracy of the measuring results is not influenced by the colour (white or yellow) of road markings.”

Repeatability at various speeds:

“The coefficient of retroreflected luminance RL can be detected with a good measuring accuracy by the measuring system RetroTek-MU, independent of the measuring velocity.”

Test Conclusion:

“The deviations of the measurement results are low overall, especially considering that the difficult measuring conditions (different measuring areas, uneven marking surface, non-homogenous structure of the marking surface, non-homogenous bead distribution) cause inaccuracies that are not attributable to device inaccuracy.”

“The RetroTek-MU Mobile Pavement Retroreflectometer is hereby deemed to be well suitable for the dynamic measurement of the coefficient of retroreflected luminance RL of road markings according to the measuring geometry and measuring conditions given in the US-Standard ASTM E 1710 resp. in the European Standard EN 1436 and delivers the same results as a portable retroreflectometer. The measuring results are independent of the measuring speed and are not influenced by the kind, form and colour of the road markings.”

ASTM E1710: STRAUS-ZERT TEST CERTIFICATION