Relative Humidity (RH) ageing chamber

IESL-FORTH has developed this RH ageing chamber on the basis of a series of experiments focused on the DHSPI monitoring of environmentally induced changes on objects. It is a custom-made airtight construction with a main compartment for placing the samples under examination and two compartments under the main floor which receive trays with saturated salts solutions to change the RH inside the chamber. The airflow between the main compartment and the tray's compartments is controlled via slits which may gradually be opened or closed. An RH/T logger acquires, displays and monitors the Relative Humidity (RH) and Temperature (T) of the chamber.

Light ageing chamber

IESL-FORTH has developed this light ageing chamber on the basis of a series of experiments focused on laser thinning of aged and polymerised varnishes. It is a custom-made construction in which all mock-ups/objects are arranged so to receive direct illumination from a series of mercury discharge lamps. The intensity of light exposure onto the mock-up’s surface inside the chamber is measured using a TECPEL DLM-536 Light Meter with Data Logger (which monitors the RH and Temperature of the chamber) and the light intensity value reaching the surface is modified by adjusting its relative distance from the lamp. Various protocols have been developed according to each individual experiment.