Technical Parameters of VOCs Sampling Chamber for Passenger Cars

-Dongguan City Environmental Instrumentation Instrument Co., Ltd.

Product name: VOCs sampling Chamber for passenger cars

Manufacturer: Dongguan Huanyi Instrument

A. Function description of VOCs sampling chamber equipment

The VOCs sampling chamber can be used to provide a test environment that meets the requirements of the standard (such as specified temperature, relative humidity, air replacement rate and low gas concentration background value), or to simulate the real environment to provide a test environment for air quality testing in passenger cars .

B. Test standards implemented by VOCs sampling chamber equipment

2.1 Meet GB/T 18352.6-2016 "Light-Duty Vehicle Pollutant Emission Limits and Measurement Methods (China Phase Six)";

2.2. Meet GB/T 27630-2011 "Guidelines for Air Quality Evaluation in Passenger Cars";

2.3. Meet HJ/T400-2007 "Method for Sampling and Determination of Volatile Organic Compounds and Aldehydes and Ketones in Vehicles";

2.4. ISO12219.1-2012 "Interior Air of Road Vehicles-Part 1: Vehicle Test Room-Specifications and Methods for Determining Volatile Organic Compounds in Vehicle Compartments"

C. Main performance parameters

3.1. Temperature in the VOCs sampling chamber:

Temperature control range: 20°C～30°C.

Temperature fluctuation: ±0.5°C.

Temperature deviation: ±1.0°C.

Measurement accuracy: ±0.1°C.

3.2. Humidity in the VOCs sampling chamber:

Humidity control range: 50% R.H.

Humidity deviation: ±10% R.H.

3.3. Wind speed in the VOCs sampling chamber:

The wind speed at any point within the space range where the outer surface of the vehicle under inspection does not exceed 0.5m: ≤0.3m/s.

3.4. Background concentration of pollutants in the VOCs sampling chamber:

Background concentration values of environmental pollutants in the vehicle test room: benzene≤0.02mg/m3, toluene≤0.02mg/m3, xylene≤0.02mg/m3, ethylbenzene≤0.02mg/m3, styrene≤0.02mg/m3, formaldehyde ≤0.02 mg/m3, acetaldehyde ≤0.02 mg/m3, acrolein ≤0.02 mg/m3, and TVOC concentration less than 0.2mg/m3.

3.5. Atmospheric pressure in the VOCs sampling chamber:

The relative atmospheric pressure in the environmental chamber should maintain a slightly positive pressure of 30-50Pa.

3.6. Working noise:

When the VOCs sampling chamber is working, the noise measured at a distance of 5m from the equipment: ≤65dB (A).