Cubic-Ruiyi has developed a series of high-end automobile emission testing equipment to support China's upcoming National VI emission standards, the most stringent in history. This includes laboratory emission testing systems for engine testing, portable emission testing systems for in-use vehicle testing, and vehicle exhaust gas analyzers for emission inspection stations. By leveraging its parent company's expertise in gas sensor technologies, Cubic-Ruiyi can simultaneously measure various pollutants like THC, NOx, CO, CO2, and PM to meet National VI's strict requirements. Its systems offer high measurement accuracy and functionality for automatic emission calculations and testing. This positions Cubic-Ruiyi at the forefront of promoting technical upgrades in

1. Cubic-Ruiyi Made Great Technical Breakthrough in High-end Automobile Emission
Testing Equipment Before National VI Comes
If you go to buy a car or inspect a car, you often hear the national VI standard, car sales
will also tell you to try to buy a car in line with the national VI B model. You may be
wondering: what are the VI A and VI B? What kind of standards and testing equipment
are used to detect the national VI B? With the coming of National VI B, is there any
Chinese test equipment that can support the test of National VI B emission standard?
This article will bring you a comprehensive understanding, what is the national VI? What
kind of equipment can fully support the national VI B test?
National VI A and National VI B
The National VI Standard, known as the "National Phase 6 Motor Vehicle Emission
Standard", mainly involves the following four standards, the most stringent in history,
national VI B, will be fully implemented on July 1, 2023.
Standard Name Implementation
Date
Remarks
GB18352.6-2016 Emission limits and
measurement methods of pollutants from
light duty vehicles (The Sixth Stage of
China)
2020/7/1
GB17691-2018 Pollutant emission limits
and measurement methods for heavy-
duty diesel vehicles (Phase 6 of China)
2019/7/1
GB18285-2018 Pollutant emission limits
and measurement methods for gasoline
vehicles (double idle method and simple
operation method)
2019/5/1 Adjust pollutant
discharge limits
Emission limits and measurement
methods of pollutants from diesel
vehicles (free acceleration method and
loading deceleration method)
2019/5/1 New NOx emission
testing requirements for
diesel engines

2. Table 2 Type I Test Emission Limits (Stage 6a)
Table 3 Type I Test Emission Limits (Stage 6b)
Before July 1, 2020, the transition limit for gasoline vehicles is 6.0x10^12/km
According to the emission standard data in the table above, the emission requirements of
carbon monoxide, non-methane hydrocarbon, nitrogen oxides and PM fine particles are
more stringent than those of national VI A. In addition, "National VI" also adopted the
principle of fuel neutrality, which means that emission limits are the same regardless of
which fuel is used. In the "National V" phase, diesel models have looser emission
standards than gasoline engines.
The emission standards of National VI will be strictly implemented in some regions
starting from June 2018, with the implementation of National VI A starting from July 1,
2020 and National VI B starting from July 1, 2023. "VI A" is the transitional stage between
"V" and "VI", while "VI B" is the real "VI" emission standard. Different from light vehicles
and heavy diesel vehicles, at present, the pollutant emission of motorcycles is still
implemented in the "National IV" standard, and there are even a large number of non-
road engines and construction machinery in China are still on the road to implement the
"National III" and "National IV" standards.

3. Focus on high-end scientific instruments and promote the technical upgrade of
engine emission testing equipment
Hubei Cubic-Ruiyi Instrument Co.,Ltd., a wholly-owned subsidiary of Cubic Sensor and
Instrument Co., Ltd. (stock code 688665), relies on the combination advantages of the
parent company's core gas sensing technology platform. The company has completed
the r&d and production of a series of high-end emission testing equipment from
laboratory emission testing equipment, to portable emission testing equipment for road
testing, to automobile exhaust emission testing equipment for I/M station.
Engine constant volume sampling CVS or direct mining emission testing equipment
Product Serialization of Engine Exhaust Emission Testing Equipment
Laboratory
Laboratory Engine Emissions Testing
 Engine Exhaust Full Flow Dilution Constant Volume Sampling System (CVS)
 Engine Emissions Test System
In-Use Vehicles
On-Board Portable Emission Testing of In-Use Vehicles

4.  Light Commercial Vehicles/Heavy Trucks/Off-Road
 Portable Emissions Test System
I/M Station Vehicle Exhaust Emission Detection
 Vehicle Emission Gas Analyzer (Diesel Vehicles)
 Vehicle Exhaust Gas Analyzer (Gasoline Vehicles)
According to national V and national VI standards, new engines should be tested for
exhaust pollutants on the dynamometer bench. The engine lab emission testing system
includes the engine emission testing system and the constant volume sampling system
(CVS) to accurately analyze engine exhaust. The system should be able to continuously
measure CO, CO2, CH4NMHC (non-methane total hydrocarbon), NOx and other
gaseous pollutants and dust concentration PM and particle number PN, as well as
exhaust mass flow, and record them in the computer system.
Cubic-Ruiyi belongs to Cubic Sensor and Instrument Co., Ltd. (stock code: 688665) is a
wholly owned subsidiary, inherited the quartet photoelectric gas analysis instrument
industry, in the infrared spectroscopic NDIR, light scattering detection, ultrasonic,
ultraviolet difference UVDOAS absorption spectrum, thermal conductivity, such as laser
Raman technically has formed a comprehensive optical sensor technology platform. The
company's infrared gas sensor technology can detect CO, CO2, HC; The UVDOAS
technology can directly detect NO+NOX without the need for NOX converters. HFID
technology can measure THC in a multi-range range, and paramagnetic and laser
TDLAS technology can measure O2 in emissions with high accuracy.By using one or
more of the above technology combinations, Cubic-Ruiyi could be able to offer a variety
of products based on customer needs. Based on the aforementioned core key
technology platform, Cubic-Ruiyi independently developed a full set of engine laboratory
emission testing equipment, which can meet the emission requirements of national VI
standards, as well as the relevant emission requirements of motorcycles, off-road
engines and equipment.
Gasboard-9801 Direct extraction engine emission testing equipment: With integrated
high precision heating type hydrogen flame ionization detection technology (HFID), UV
differential absorption spectrum gas analysis technology (UV-DOAS), non-spectral
infrared gas analysis technology (NDIR), it could simultaneously measure the
concentration of THC, NOx, CO, CO2, O2 and other gases in the engine exhaust, and
also could expand the particulate matter measurement module; Its UV-DOAS can directly
measure NOx, without conversion furnace which is maintenance free; simple operation,
support the engine exhaust pollutants specific emission automatic calculation display;

5. High measurement accuracy, and the performance reaches the standard of imported
equipment.
Hubei Cubic-Ruiyi Engine Emission Testing Equipment
High Temperature UV Gas Analyzer
HFID Gas Analyzer
NDIR Gas Analyzer
Gasboard-9802 engine discharge full-flow dilution constant volume sampling system
(CVS) : it is composed of main Venturi tube cabinet, sampling control cabinet, air bag, fan,
dilution channel, filter and other components. It has good stability and high accuracy, and
the systematic error is less than 2%.Vehicle and engine dilution can be realized by
adopting and analyzing integrated operation, which is convenient and fast. The control
software adopts more humanized graphic design, convenient and easy to use while also
supporting real-time data acquisition, recording, analysis, export and other functions.

6. Full Flow Dilution Constant Volume Sampling System for Engine Emissions (CVS)
Gasboard-9805 portable emission detection equipment (PEMS)
Before the National VI Standard, the type certification of new engines or new models is
mainly based on laboratory data to verify whether the exhaust emissions meet the
standard. However, there is a big difference between the engine running state in the
laboratory and the actual road driving state, and the laboratory data may not really reflect
the actual emissions of the engine. In order to solve the above problems, the test of
portable engine emission Detection system (PEMS) is added for the first time in The
National VI Standard for heavy vehicles in China (HJ 1014-2020). That is, the portable
engine emission detection system is installed on the vehicle running on the actual road to
measure the pollutant emissions of the vehicle in the actual driving process. The national
VI standard requires all engines and vehicles subject to type inspection to undergo the
above tests, and only new engines and vehicles that pass the test can be manufactured,
imported, sold and put into service or registered. The implementation date is December 1,
2022.
Gasboard-9805 portable emission detection equipment (PEMS), used for non-road, road
(light vehicles and heavy diesel vehicles). PEMS Gasboard-9805 can achieve CO, CO2,
NO, NO2, THC emission concentration measurement, as well as particulate matter,
exhaust flow, GPS data, ambient temperature and humidity, atmospheric pressure
measurement. It has the functions of test process guidance, automatic calculation of total
emissions, export test report and so on. The high precision NDIR sensor technology of
rapid response is adopted to measure CO+CO2. The heated UVDOAS sensor can

7. directly measure NO and NO2, with high precision and no reformer required. The product
adopts modular design, portable battery supports more than 6 hours of endurance, the
system has good environmental adaptability, is not affected by vehicle vibration,
atmospheric pressure and environmental temperature and humidity changes, meet the
requirements of in-vehicle emission detection.
Hubei Cubic-Ruiyi Portable Emission Detection Equipment (PEMS)
In response to the most stringent National VI B in history, Hubei Ruiyi relies on the parent
company's advantages in sensor technology to form a complete set of engine emission
testing systems: from engine laboratory emission testing, to portable on-board testing of
in-use vehicles, to product serialization of exhaust gas analysis and testing equipment at
I/M stations, effectively promoting the technology upgrade of high-end scientific
instruments.
From the basic components of the sensor to the analyzer, and then to the emission
testing system, Hubei Ruiyi has been determined to achieve the key technical problems
of "one-stop" engine emission testing equipment in China, laying a foundation for our
users to reduce the annual operation and maintenance costs of emission testing
equipment.
About Cubic-Ruiyi
Hubei Cubic-Ruiyi Instrument Co., Ltd. is a high-tech enterprise specializing in the
development, production and sales of gas analysis instruments. Formerly known as the

8. gas analysis instrument business division of Cubic Sensor and Instrument Co., Ltd.
(stock code: 688665), and started to operate independently in 2016 as a wholly-owned
subsidiary of Cubic, specializing in environmental monitoring, industrial process
monitoring, smart metering and other fields.