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Regulation (EU) 2016/1628 for non-road mobile machinery (NRMM) – also known as Stage V – defines new emissions limits for off-highway machinery. All new engine types will have to comply with this new regulation starting from January 2018, and all new engines and equipment placed on the EU market must comply from January 2019, January 2020 or January 2021 depending on their category.
The NRMM sector covers a large variety of combustion engines – both diesel and gasoline – installed in machinery typically used off the road, such as construction and mining machinery (yellow goods), agriculture and farming machinery, small gardening and handheld equipment, railcars, locomotives, snowmobiles, all terrain and side-by-side vehicles, inland waterway vessels and electrical power generators.
So what’s new in Stage V?
The new regulation focuses on four main types of gaseous and particulate emissions: hydrocarbons (HC), particulate matter (PM), carbon monoxide (CO) and nitrogen oxides, the latter mainly comprising NO and NO2.
Stage V specifies stricter limits for CO, NOx and PM, also introducing a completely new particulate number (PN) limit. In addition, it brings many new vehicles and items of equipment that are not currently covered under existing legislation under scope. The other key impact of the NRMM regulation is in-service monitoring (ISM) using Portable Emissions Measurement Systems (PEMS), similar to the requirements that apply to on-road heavy-duty vehicles (HDV). In general, the new NRMM regulation is looking to harmonise off-road vehicles with Euro 6 requirements for HDVs.
Getting ready for Stage V
This tightening of legislation means that manufacturers will need to put an appropriate aftertreatment strategy in place to control engine emissions and to measure emissions with greater precision. This may require significant changes to current testing policies and methods. As emission thresholds drop, the measurement point is also dropping. This means the calibration point is also falling (as testers need to calibrate near to the measurement point). So although some manufacturers may be measuring the same chemical species, their calibration gas or mixture specification may change. In other words, lower concentrations of the species will be required in the calibration gas or mixture. At the same time, manufacturers will be required to measure more chemicals and chemical species. So they will need more instrumentation, more calibration gases and additional calibration mixtures to align that equipment. Plus the introduction of in-service monitoring using a PEMS may be a big challenge for many OEMs.
Guiding customers through the complexities of the NRMM regulation
Linde has the products and experience to guide its customers through the adaptations necessary for compliance with the NRMM regulation. First and foremost, it offers a dedicated line of calibration gases and mixtures in the purities and accuracies mandated by the new legislation. In addition, these gases and mixtures are certified and fully traceable to give customers complete peace of mind.
Complementing these gases and mixtures, Linde also offers specialty equipment. Linde’s HiQ® experts can advise customers on the most appropriate supply schemes and gas packages. For example, we typically supply calibration gases for labs in 10, 20 or even 50-litre cylinders, complementing these with small, portable cylinders from our ECOCYL® range for in-service monitoring.
Overview of our NRMM regulation programme
- Ultra-high-purity gases (nitrogen and synthetic air) for dilute exhaust measurements
- Calibration gas mixtures traceable to national and international standards containing nitric oxide (NO), carbon monoxide (CO), nitrogen dioxide (NO2), methane (CH4) or propane (C3H8) in nitrogen (N2) or synthetic air
- Product certifications on request
- Wide choice of supply modes scaling from 1-litre ECOCYL cylinders to 50-litre cylinders