ETA-18/0536 confirms Green Drain meets every performance requirement under EAD 180020-00-0704 for waterless odour traps. Issued by ETA-Danmark, it covers all 8 models and enables legal placement across all 27 EU member states plus the wider EEA.
The European construction market requires CE marking for products to be legally sold and installed. For most construction products, CE marking is based on a harmonized European standard (hEN). But for product categories without an hEN, the only route to CE marking is through a European Technical Assessment.
There is no harmonized standard for waterless odour traps. That means the ETA/EAD pathway is the sole legal mechanism for Green Drain to access the European market as a construction product.
The assessment is governed by EU Regulation No 305/2011, known as the Construction Products Regulation (CPR). It requires the manufacturer to submit the product for independent testing to an authorized Technical Assessment Body (TAB). In Green Drain's case, that body is ETA-Danmark A/S, authorized by Denmark and a member of EOTA (European Organisation for Technical Assessment).
The testing criteria come from EAD 180020-00-0704, a European Assessment Document titled "Waterless odour trap for floor drains." This document was purpose-built for exactly this product category, defining specific test methods for odour tightness, mechanical resistance under negative pressure, thermal cycling behaviour, self-cleaning ability, drainage capacity, and pull-out resistance from floor drains.
Green Drain's ETA was originally issued in December 2019 and reissued on July 15, 2025 with updated test data. The product operates under AVCP System 4, which requires the manufacturer to maintain a factory production control plan deposited with ETA-Danmark prior to CE marking.
All testing was performed at the Danish Technological Institute (DTI) in Denmark, an accredited laboratory under DANAK (Danish Accreditation). DTI tested Green Drain models against every performance criterion defined in EAD 180020-00-0704.
Each model was subjected to 200 Pa of air pressure to determine whether sewer gases could pass through the closed membrane. All models achieved a complete seal with zero measurable pressure drop, confirming total odour tightness at the specified test pressure.
The membrane was tested under increasing negative air pressure to determine the point at which the seal would break. All models maintained an odour-tight seal at pressures exceeding 400 Pa. This confirms the trap seal holds even when drainage systems create suction forces from wind loading, stack effect, or simultaneous fixture discharge.
Green Drain achieved Class A thermal resistance, the highest classification for odour traps under the EAD. The product also demonstrated self-cleaning capability and remained cleanable after thermal cycling, confirming it does not trap debris that could compromise the seal over time.
Flow rates were measured across the full model range, from 0.29 L/s for the GD125 up to 3.42 L/s for the GD6. Pull-out resistance was tested in both stainless steel and polypropylene gullies to confirm the device stays securely in place during normal use and maintenance operations.
This certification is relevant to healthcare facilities, food processing and commercial kitchens, hotels and hospitality, and commercial and institutional buildings across Europe where CE-marked drainage components are required. European hospitals and clinics rely on the proven 200 Pa odour tightness for infection control in patient areas and operating theatres. Food processing and commercial kitchen environments benefit from the Class A thermal resistance and self-cleaning properties. Hotels and seasonal properties use Green Drain to address dry trap issues in guest rooms and lobbies where drains may go unused for extended periods. Office buildings, schools, universities, and government facilities specify CE-marked products for code compliance, and the ETA covers all 8 models to provide solutions for every standard drain pipe size.
Performance characteristics validated by independent testing at the Danish Technological Institute (DTI) under EAD 180020-00-0704.
Without CE marking under a valid ETA, a waterless odour trap cannot legally be specified or installed as a construction product in EU/EEA member states. The ETA is not optional for European projects.
CE marking via ETA-18/0536 allows Green Drain to be legally placed on the market in all 27 EU member states, plus EEA countries (Norway, Iceland, Liechtenstein) and often Switzerland and Turkey through mutual recognition agreements. This single certification provides continent-wide market access, eliminating the need for separate country-by-country approvals.
European building codes reference the Construction Products Regulation when specifying drainage components. Architects, engineers, and plumbing contractors can specify Green Drain with confidence that it meets the regulatory requirements for odour trap performance in European construction. The ETA provides independently verified performance characteristics that can be written directly into project specifications. Rather than relying on manufacturer claims, specifiers can reference ETA-18/0536 and the tested values for odour tightness, mechanical resistance, thermal class, and flow capacity.
The complete European Technical Assessment document, including all tested performance characteristics, product descriptions, model coverage, and Annex A. Reissued July 15, 2025.
ETA-18/0536 is a European Technical Assessment issued under EU Regulation No 305/2011 (the Construction Products Regulation). Because there is no harmonized European standard (hEN) for waterless odour traps, the ETA route is the only legal pathway for Green Drain to carry CE marking and be sold as a construction product across the European Economic Area. Without it, the product cannot be legally placed on the EU market for use in building drainage systems.
All 8 Green Drain models are covered: GD125 (1.25"), GD15 (1.5"), GD2 (2"), GD3 (3"), GD35 (3.5"), GD4 (4"), GD5 (5"), and GD6 (6"). This is the broadest single certification in the Green Drain portfolio, meaning every model can be CE marked for the European market.
200 Pascal is the standard test pressure specified in EAD 180020-00-0704 for odour tightness. At this pressure, the Green Drain membrane maintained a complete seal with zero pressure drop, meaning no air or sewer gas passed through. For context, 200 Pa is roughly equivalent to 0.8 inches of water column, which exceeds the pressure differentials typically found in building drainage systems. The product also withstands mechanical resistance at pressures exceeding 400 Pa.
EAD 180020-00-0704 is the European Assessment Document titled "Waterless odour trap for floor drains." It was developed by EOTA specifically for this product category. The EAD defines the testing methods, performance criteria, and assessment procedures that a waterless trap seal must pass to receive a European Technical Assessment. It covers odour tightness, mechanical resistance under negative air pressure, thermal behaviour, self-cleaning ability, drainage capacity, and pull-out resistance.
Not exactly. The European Technical Assessment (ETA) is the evaluation document that confirms tested performance characteristics. The CE mark is the declaration of conformity that the manufacturer applies to the product based on the ETA results and an ongoing factory production control plan. The ETA enables CE marking, but they are distinct steps. Green Drain's ETA was issued by ETA-Danmark A/S, and a factory control plan is deposited with ETA-Danmark before CE marking is applied under AVCP System 4.
Download the ETA certificate above, or contact us for specification language, Declaration of Performance documents, or technical support for your project submittal.