TY - GEN

T1 - The effect of temperature on emissions of carboxylic acids in passive climate controlled repositories with cultural heritage collections

T2 - (Paper 348)

AU - Smedemark, Signe Hjerrild

AU - Ryhl-Svendsen, Morten

AU - Schieweck, Alexandra

PY - 2018

Y1 - 2018

N2 - This study investigates the effect of reducing temperature on the emission of carboxylic acids and other volatile organic compounds (VOCs) released from museum objects. Volatile car-boxylic acids cause deterioration of cultural heritage collections, e.g. tarnishing of metals, salt efflorescence on calcareous structures, and acid hydrolysis of organic materials. The concen-trations of VOCs and carboxylic acids in air were determined in a test chamber set-up. Active sampling of VOCs was performed on Tenax TA® with subsequent thermal desorption and coupled gas chromatography/mass spectrometry (TDS-GC/MS) analysis. Carboxylic acids were trapped on silica gel tubes and analyzed by ion chromatography (IC). The results show that reducing the temperature from 23°C to 10°C will reduce the emission of carboxylic acids from selected cultural heritage materials to 27-68%.It has to be clarified if reducing tempera-ture can have a beneficial effect on air filtration requirements in repositories with passive cli-mate control in Northern Europe.

AB - This study investigates the effect of reducing temperature on the emission of carboxylic acids and other volatile organic compounds (VOCs) released from museum objects. Volatile car-boxylic acids cause deterioration of cultural heritage collections, e.g. tarnishing of metals, salt efflorescence on calcareous structures, and acid hydrolysis of organic materials. The concen-trations of VOCs and carboxylic acids in air were determined in a test chamber set-up. Active sampling of VOCs was performed on Tenax TA® with subsequent thermal desorption and coupled gas chromatography/mass spectrometry (TDS-GC/MS) analysis. Carboxylic acids were trapped on silica gel tubes and analyzed by ion chromatography (IC). The results show that reducing the temperature from 23°C to 10°C will reduce the emission of carboxylic acids from selected cultural heritage materials to 27-68%.It has to be clarified if reducing tempera-ture can have a beneficial effect on air filtration requirements in repositories with passive cli-mate control in Northern Europe.

UR - https://adk.elsevierpure.com/en/publications/c129267d-fbe0-4646-adf5-81b431f62157

M3 - Article in proceedings

BT - INDOOR AIR 2018, Philadelphia, United States, 22/07/2017

ER -