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DUROXO

DLG-APPROVED „Resistance to ammonia, cleaning distance“

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The approval

A test mark “DLG-APPROVED for individual criteria” is awarded for agricultural products which have successfully fulfilled a scope-reduced usability testing conducted by DLG according to independent and recognized evaluation criteria. The test is intended to highlight particular innovations and key criteria of the test object. The test may contain criteria from the DLG test scope for overall tests, or focus on other value-determining characteristics and properties of the test subject. The minimum requirements, test conditions and procedures as well as the evaluation bases of the test results will be specified in consultation with an expert group of DLG. They correspond to the recognized rules of technology, as well as scientific and agricultural knowledge and requirements. The successful testing is concluded with the publication of a test report, as well as the awarding of the test mark which is valid for five years from the date of awarding.

The ammonia resistance test was performed as a laboratory test according to the patented DLG test standard. This test is intended to determine the suitability of equipment for animal living areas to withstand the impacts of animal environments. The cleaning distance test assesses the suitability for cleaning animal living areas. 

Other criteria were not tested. 

Assessment – Brief Summary

The LED light “DUROXO” from TRILUX GmbH & Co. KG has successfully com­pleted the DLG test for ammonia resistance and cleaning distance. 

According to this result, it can be assumed that these luminaires are resistant to the typical environmental conditions of animal living areas and that no accelerated reduction of the product lifetime will occur. 

In addition, the LED light “DUROXO” was operated actively in the chamber for the entirety of the test. No product damage was observed here. Furthermore, the cleaning distance is regarded as suitable for the cleaning of animal houses. 

Table 1: Assessment in brief

DLG QUALITY PROFILEEvaluation*
Ammonia resistance++++
Cleaning distance++++

* DLG Evaluation range: 
+++ or better = meets, exceeds or significantly exceeds the established DLG standards 
++ meets the legal requirements for marketability
- = failed 

The Product

Description and technical data

The tested LED light “DUROXO” is suitable for any usage in animal housing surroundings or for unprotected outdoor use.

Table 2: Technical data (according to manufacturer)

 DUROXO
Electrical connection 
Voltage220 - 240 Hz
Frequency0 - 60 Hz
Rated input power43 W
Dimension and weight 
Length1.345 mm
Diameter113 mm
Weight4,3 kg
Additional technical data 
Number of LED modules2
Housing materialPMMA
End capsASA
Colour temperature4000 K 
Dimmablenein (optional: DALI)
Light angle130°
Light yield150 lm/W
Rated luminous flux6500 lm

The Method

Resistance to ammonia

The ammonia resistance of the LED light “DUROXO” was determined by a laboratory test with one luminaire according to the patented DLG test standard for agricultural use. The laboratory test is designed to replicate the conditions of a usage period of about 10 years exposure to animal living areas.

The test was carried out in a climate chamber under the following climate conditions:

Test duration1500 h
Air temperature70 °C
Relative humidity70 %
Ammonia concentration750 ppm

For assessing the ammonia resistance, each luminaire was examined visually, gravimetrically and the plastic parts additionally through measurement of the hardness (Shore D) before and after the climate testing.

The luminaires have additionally been following a cycle of operation predefined by DLG (3 hours on, 1 hour off) in order to evaluate any thermal impacts caused by switch-on and -off procedures during ammonia fumigation.

In order to avoid overheating (> 70 °C), the luminaires could be operated at a reduced power level during the testing period.

Cleaning distance

During test bench examinations of the mechanical resistance to high-pressure cleaners, the minimum cleaning distance was determined.

The minimum cleaning distance is defined as the distance between nozzle and surface when no damages can be observed at the housing surface.

The test was conducted under the conditions presented in table 3.

Table 3:  Test conditions cleaning distance

Line pressure~150 bar
Watercold, approx. 1,000 l/h, no detergents
Nozzle typeFlat spray nozzle, 25°
Exposition time1 minute
Distance250 mm, 200 mm, 150 mm, 100 mm, 50 mm
Ambient temperature10-20 °C

For all test procedures, the LED light “DUROXO” in the length of 1,345 mm has been used. After the tests, the luminaires underwent visual examination to a reference sample that was identical in construction.

The Test Results in Detail

Resistance to ammonia

Visual test

The comparative visual examination after the ammonia exposure has shown minor discolorations at the luminaire housing. A slight bending of the end caps could be observed. 

During the test, the luminaire appeared to be sufficiently gas-tight. Nevertheless it cannot be ruled out, that a limited amount of ammonium compounds could enter the luminaire housing. Again, no negative impact on the luminaire performance needs to be expected.

The defects are rated as insignificant. The examination of the manufacturer’s mounting parts didn’t also show any defects.

Gravimetric test

Weight comparisions before and after the ammonia fumigation have not shown any measurable increases 
or decreases in weight.

Hardness test

During the hardness test (Shore D) no measurable changes were observed. All determined changes were within the measurement incertainty.

Functional test

No defects were observed. All luminaires worked after the conducted tests.

Based on the results of these tested parameters, the luminaire is evaluated as resistant to ammonia. 

Cleaning distance

The results show that the LED light “DUROXO” fulfills the testing requirements for ammonia resistance and cleaning distance and thus receives the test mark DLG-Approved. It can be expected that the luminaire is resistant to ammonical air in animal living areas and that no accelerated reduction of the product lifetime occurs.

The LED light “DUROXO” was operated both passively and actively during the ammonia fumigation in the test chamber and passed both tests successfully.

It is also recommended in any case to keep a minimum distance of 10 cm during high pressure cleaning.

Summary

The results show that the LED light “DUROXO” fulfills the testing requirements for ammonia resistance and cleaning distance and thus receives the test mark DLG-Approved. It can be expected that the luminaire is resistant to ammonical air in animal living areas and that no accelerated reduction of the product lifetime occurs.

The LED light “DUROXO” was operated both passively and actively during the ammonia fumigation in the test chamber and passed both tests successfully.

It is also recommended in any case to keep a minimum distance of 10 cm during high pressure cleaning.

Applicant and Test implementation

Manufacturer and Applicant

Manufacturer:
Zalux, S.A.
Avda. Manuel Rodriguez Ayuso, 114
Planta 1a, Local P-2
50012 Zaragoza
Spanien

Contact:
Phone +34 976462200
info@zalux.com
www.zalux.com

Applicant:
TRILUX GmbH & Co. KG
Heidestraße 4
59759 Arnsberg
Deutschland

Contact:
Phone +49 (0)2932 3010
info@trilux.com
www.trilux.com

 

Prüfungsdurchführung

DLG TestService GmbH, Standort Groß-Umstadt
Die Prüfungen werden im Auftrag des DLG e.V. durchgeführt.

DLG-Prüfrahmen
DLG-ANERKANNT Test „Ammoniakbeständigkeit“ (Stand 07/2018)

Fachgebiet
Landwirtschaft

Projektleiter
Dr. Ulrich Rubenschuh

Prüfingenieur
Dipl.-Ing. (FH) Tommy Pfeifer  *

* Berichterstatter

Contact

DLG TestService GmbH - Groß-Umstadt location • Max-Eyth-Weg 1 64823 Groß-Umstadt Germany • Tel.: +49(0)69 24 788-611 • tech@DLG.org