The Wageningen University & Research LightLab has unequalled measuring equipment to measure equipment characteristic such as translucency , dissemination and spectrum of greenhouse cover materials and screen door . Now , WUR LightLab is the first ISO17025 accredited lab to be permitted to hold out measurements under the NEN2675 standards .
The WUR LightLab is part of Wageningen University & Research centre ’s Greenhouse Horticulture business unit . Measurements channel out in the lab are thus mainly related to the crop requirements and greenhouse climate . The lab is equipped to test all type of semi - transparent materials that are used in horticulture , such as deoxyephedrine , screens or temporary coating , in accord with the NEN2575:2018 + C1 standard . As of this month , the laboratory is also ISO17025 certified ( under registration bit L655 ) by the Council of Accreditations . To this goal , the research laboratory has a variety of equipment available , some of which has been unambiguously designed in the world . Other equipment is standardise . Measuring protocols have been plan to meet NEN2675 standards . The measurements are totally accusative and independent . The client is provided with a value report that throw insight into all relevant characteristics of the tested material .
WUR LightLab is capable of measuring the light transmittance of all these wavelength . This is require because plants react otherwise to dissimilar wavelengths . Besides , the amount of sunlight is authoritative to the nursery ’s energy management .
Light quantity and hemispheric transmissionThe amount of PAR light in a nursery direct impacts photosynthesis , ontogenesis and growth of crop . The light transmittance of the greenhouse cover and screen material is very relevant . In the past , the amount of light that overhaul through the materials perpendicularly was measured : perpendicular transmission . However , in an literal greenhouse , there is hardly any vertical brightness . Light always enters the greenhouse cover charge under an slant . what is more , perpendicular transmittance seldomly provides an accurate representation of the light that is available to the plant in the greenhouse . This is why WUR LightLab measures transmittal at all slant according to NEN2675 standards . From this data , the hemispherical transmission is reckon .
Light diffusion and HortiscatterScientific research has shown that many crops benefit from scattered light . In compounding with an equal amount of light , this yields a high production and good character . This is why diffused glass , screens and coating are used in horticulture . It accept some fourth dimension before the appraise techniques meet the requirements of these unexampled development , but , today , we are capable to measure systematically agree to NEN2675:2018 + C1 . The Hortiscatter note value suggest to what degree the light that enrol the material is scatter . WUR LightLab measures how the brightness is permeate , and under what angle , leading to a Hortiscatter score . The ideal scatter ( diffusion ) is known as the Lambertian diffusor . The Hortiscatter value indicates to what percentage this ideal economic value is achieved .
Other measurementsBesides the NEN2675 measurements , WUR LightLab endlessly develops unexampled measuring proficiency and collaborates on the development of new measuring protocols . International standard and enquiry are go in this respect .
The follow characteristics can be meditate :
Are you interested?WUR LighLab client range from producer and suppliers of chicken feed , foil , plastic plates and blind to greenhouse expression companies , horticulturalists and scientific institute .
Are you concerned , or do you have a dubiousness ? Do you desire a measurement taken of your cover material or screens ? Contact[email protected ]
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