DTI Test Report 226049
Accredited laboratory testing by the Danish Technological Institute under EAD 180020-00-0704:2018. Five Green Drain models tested for odour tightness, mechanical resistance, thermal behaviour, and flow capacity. All requirements met.
The Danish Technological Institute (DTI) is one of Europe's leading accredited testing laboratories for building products. DTI holds DANAK accreditation (Test Registration No. 300) under EN ISO/IEC 17025:2017, with ilac-MRA mutual recognition. Test results from DTI are accepted by accreditation bodies in over 100 countries.
Report 226049 was produced in March 2024 as part of a reduced test programme supporting the reissue of European Technical Assessment ETA-18/0536. The original full assessment was completed in 2018 when the ETA was first granted. This 2024 round confirmed that current production units continue to meet all EAD 180020-00-0704 performance requirements.
EAD 180020-00-0704:2018 is the European Assessment Document specifically written for waterless odour traps used in floor drains. It defines performance criteria for air/odour tightness, mechanical resistance to pressure, thermal cycling behaviour, water flow capacity, self-cleaning ability, and pull-out resistance. Models tested in this report: GD1.25, GD1.5, GD2, GD4, and GD6. Together with DTI Report 957187, all 8 Green Drain models have DTI test coverage.
All testing followed EAD 180020-00-0704:2018 protocols under DTI's DANAK-accredited quality system. Products were sampled on January 19, 2024 from Green Drain Inc.'s manufacturing facility in Naples, Florida, and tested using Drain Purus and Drain Blucher drain bodies with associated pipe segments (DN40 through DN150).
Each model was installed in its corresponding test pipe and pressurized to 200 Pa. Pressure was held for 15 minutes and the residual pressure recorded. All five models maintained the full 200 Pa with zero measurable drop. The EAD requirement is a minimum of 180 Pa remaining after the 15-minute test period.
Air pressure was applied from the sewer side and increased until the valve allowed air to pass through. GD1.25, GD1.5, GD2, and GD4 all withstood pressures exceeding 700 Pa before opening. The GD6 (DN150) opened at 460 Pa. All models exceeded the 400 Pa minimum requirement defined in the EAD.
Water was poured through each model at a 20 mm head with 100 mm mounting depth. Flow rates were measured in litres per second. GD2 achieved 0.88 L/s (requirement: 0.85 L/s), GD4 achieved 2.91 L/s (requirement: 2.60 L/s). GD1.25 (0.17 L/s), GD1.5 (0.41 L/s), and GD6 (3.42 L/s) were documented but have no minimum requirement under the EAD for their pipe sizes.
The GD4 model was tested in two different drain bodies for 1,500 cycles each. Each cycle alternated between 93C hot water and 15C cold water. After completing all cycles, the product was inspected for deformation and surface texture changes. No impairment of fitness was observed in either sample.
The GD4 model was tested at a pull speed of 5 mm/min in two drain body types. In the Drain Purus body, movement occurred at 4.2 kg of force. In the Drain Blucher body, movement occurred at 3.2 kg. Pull-out resistance varies by drain body brand based on the friction fit between the Green Drain's silicone membrane and the drain wall.
The report confirmed that the odour trap can be removed by hand to clean the outlet and pipe below. This is a functional requirement under the EAD, ensuring that building maintenance teams can service the drain without special tools.
This certification is relevant to healthcare facilities, commercial construction, and food processing across Europe where CE-marked drain products are required. Hospital and clinical projects reference DTI-verified odour tightness and pressure resistance data in their infection control specifications. Office buildings, retail, and hospitality projects in the EU require CE-marked building products, and the ETA pathway backed by this DTI report satisfies that requirement. Food production facilities need drain products that meet both building code and food safety requirements, with DTI testing confirming the mechanical performance while NSF and HACCP certifications cover the food safety side.
Testing conducted at DTI's VA Testing and Inspection facility in Aarhus, Denmark between February 1 and March 4, 2024.
DTI Report 226049 is the performance evidence behind Green Drain's CE marking in Europe. Without this laboratory data, the European Technical Assessment cannot be issued, and the product cannot carry the CE mark required for sale across the EU and EEA.
The test data in this report directly supports ETA-18/0536, which was reissued in July 2025. The ETA enables CE marking across all 27 EU member states plus EEA countries, and without accredited DTI testing, CE marking is not possible for construction products in this category. Engineers and specifiers can reference this report when writing project specifications for European buildings, as it provides the exact performance values needed for submittal packages, including pressure ratings, flow capacities, and thermal stability documentation.
DTI is an independent, DANAK-accredited laboratory with no commercial relationship with Green Drain. Their ilac-MRA recognition means these test results carry mutual recognition across the global network of accredited laboratories in over 100 countries, giving the data international credibility beyond Europe.
The complete accredited test report from the Danish Technological Institute, dated March 6, 2024. Includes all test tables, product identification data, flow measurements, pressure results, thermal cycling outcomes, and marking information for models GD1.25, GD1.5, GD2, GD4, and GD6.
Report 226049 is an accredited laboratory test report from the Danish Technological Institute (DTI). It documents performance testing of five Green Drain models (GD1.25, GD1.5, GD2, GD4, GD6) under the European Assessment Document EAD 180020-00-0704:2018 for waterless odour traps. The testing was conducted between February and March 2024.
EAD 180020-00-0704:2018 is the European Assessment Document for waterless odour traps used in floor drains. It tests for air and odour tightness, mechanical resistance to air pressure, thermal behaviour under repeated hot and cold cycling, water flow capacity, self-cleaning ability, pull-out resistance, and access for cleaning.
DANAK is the Danish Accreditation Fund, which accredits testing laboratories under EN ISO/IEC 17025:2017. DTI holds DANAK Test Registration No. 300 with ilac-MRA (International Laboratory Accreditation Cooperation Mutual Recognition Arrangement). This means the test results are recognized by accreditation bodies in over 100 countries.
The 2024 testing is classified as a reduced test programme because Green Drain's original full assessment was completed when the European Technical Assessment (ETA-18/0536) was first issued in 2018. This round of testing was performed to support the ETA renewal and reissue, confirming that current production units continue to meet all performance requirements.
The ETA-18/0536 is the regulatory document that enables CE marking and sale of Green Drain across all EU and EEA member states. DTI Report 226049 provides the underlying laboratory evidence that supports the ETA. The ETA is the market access document; this DTI report is the performance data behind it.
Download the full DTI report above, or contact our engineering team for submittals, specification language, or CE marking documentation for European projects.