Cleaning, washing and flattening-2
FLOOD DAMAGE DOCUMENTS Documents damaged in floods and with deposits of mud are washed in thermostatically controlled stainless-steel sinks containing a mixture of water and 0.05 per cent PREVENTOL as a fungicide. The solution is kept at approximately 400 C. The sheets are washed on floating wooden boards held still by stainless-steel angle irons, […]
Read More »