Emission chamber for sampling of VOC
Sampling of volatile organic compounds (VOC) and formaldehyde from building materials and interiors requires a chamber which has a low background value i.e. the chamber must be clean and do not contain details which can influence the measurement. Further the chamber must have a constant climate. This implies that temperature, humidity, air exchange and also air velocity over the sample must be kept constant.
Moveable chamber
SP has developed an 1m³-chamber which is movable and insulated so it can be used in a room with a normal temperature (18-24°C).
The chamber is made of stainless steel and the inner chamber is bright anneal processed and free from unreachable air-duct systems. This lead to the better and easier cleaning of the chamber.
Temperature, humidity and air exchange in the chamber as well the sampling flow and sampling time can be simple programmed via the operator panel. These parameters are also stored during a testing period. The data of historic can be displayed on the panel or it can be transferred to a suitable data processing program.
Easy installation
Installation is simple since the chamber only needs a grounded socket-outlet 230 VAC, 10A, dried pressured air supply free from oil and pure (distilled) water (5 litre).
Fulfil requirements for testing according to methods
SP takes active part in national and international comparisons with other institutes and laboratories so we know that the chamber fulfil requirements for testing of VOC according to methods EN 13419-1, ISO 16000-9 or NT Build 358 and formaldehyde by method EN 717-1, ISO/DIS 12460-1, JIS A 1901 or ASTM D 6007-02.
Technical data
- External dimensions in mm:
B x D x H = 1010 x 1320 x 1760
- Internal chamber in mm:
B x D x H = 650 x 1020 x 1500
- Temperature: adjustable* within 15-30 °C
Uncertainty for temperature: ± 0,5°C
- Humidity: adjustable* within 20-80 %RH
Uncertainty for humidity: ± 2 %RH
- Air exchange: adjustable within 0,2-4,0 m³/h
Uncertainty for air exchange: ± 3 % m³/h
- Air velocity in the chamber: 0,1-0,3 m/s
Sampling flow: according to method or require
* The range for temperature and humidity in the chamber, state above, requires a room temperature within 18-24°C.