Investigation of toxic treatments on Māori textiles and wooden objects for MTG Hawkes Bay using a portable x-ray flouorescence machine

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SR_2018-021-pdf
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Rogers, K.M. 2018 Investigation of toxic treatments on Maori textiles and wooden objects for MTG Hawkes Bay using a portable x-ray flouorescence machine. Lower Hutt, N.Z.: GNS Science. GNS Science report 2018/21. 24 p.; doi: 10.21420/G21D29

Abstract: Toxic biocide treatments were widely and liberally applied to museum collections in the 19th and 20th centuries to protect precious objects from degradation due to insect attack and mould growth. Now, recognised as being hazardous, many museums are left with an unknown legacy of heavy metal contamination, or worse, not knowing if their collections are affected. More recently, portable x-ray fluorescence (pXRF) has been developed as a useful tool to detect contaminants on collection items. Use of pXRF increases the knowledge of hazards and risks of biocide applications, as well as providing information for care and safety protocols when handling objects containing heavy metals. This report outlines the application of pXRF to Māori textiles and wooden objects from MTG Hawkes Bay and was undertaken in May 2018 to investigate the extent of heavy metal contaminants on these items. (auth)