Jean Tetreault

Jean Tetreault
Canadian Conservation Institute · Heritage

14.13
 · 
MS Analytical Chemitry - Instrumentation

About

54
Publications
19,337
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755
Citations
Research Experience
May 1989 - present
Canadian Conservation Institute
Position
  • Senior conservation Scientist

Publications

Publications (54)
Technical Report
Full-text available
Article
Full-text available
There is increasing pressure to use coatings in a more sus-tainable way in our society and museums and archives are not exempt from this. Coatings, including those presumed to be "green" products, have been examined in terms of their suitability for collection preservation. To be more sus-tainable, museums should both avoid applying a coating as mu...
Article
Full-text available
Loss of collections in museums can be significant during a fire. It is important that museums put control measures in place to prevent a fire, to detect a fire, and to respond quickly if a fire does occur. To evaluate potential collection losses due to fire over a certain period of time, substantial information is required and there is little quant...
Data
Table. Concentrations of pollutants in heritage collections found for buildings and enclosures
Data
Moisture sorbent calculator in Excel based on the CCI Technical bulletin #33 on Silica Gel: Passive Control of Relative Humidity.
Article
Full-text available
The aim of this research was to design a model for simulating the degradation of paper in various environmental conditions by taking into consideration all the parameters (exogenous and endogenous) that influence the overall process of the acid catalyzed hydrolysis of cellulose. Three kinetic equations (Ekenstam, Calvini, and Ding and Wang) for det...
Book
Full-text available
The purpose of this Technical Bulletin is to explain the need to control the relative humidity (RH) in a museum environment. Fluctuating RH can damage organic materials, while other objects, such as those made of metal, require a low RH set point to ensure optimal preservation. Controlling RH can be done in a passive way by using a moisture sorbent...
Article
Complex cellulosic samples are often difficult to analyse with size-exclusion chromatography. The strong molecular associations of hemicelluloses and lignin with cellulose produce multimodal molar mass distributions (MMD) that are difficult to interpret. More reliable ways of calculating the molar masses of cellulose are thus necessary. This is par...
Article
Full-text available
Since the first pollutant limits for museums and archives emerged in the 1970s, various documents and publications have proposed specifications to guide pollutant control for the protection of heritage collections. Three approaches to avoiding damaging pollutant levels are examined in this paper: specifications based on maximum allowable levels, on...
Book
Full-text available
This Technical Bulletin provides a critical review of products typically used for the display, storage and transportation of objects by explaining how certain products can affect objects and their preservation, and it proposes guidelines for minimizing damaging effects. Products used to treat objects are not covered here, nor are electronic feature...
Research
Full-text available
humoristic paper 1990 about detecting gas with a trained dog.
Technical Report
Full-text available
Minimizing the exposure of UV on a collection is important due to the cumulative damage it can cause to the colour and structure of materials. This Note discusses different ways to measure UV, and provides guidelines to estimate its potential impact on a collection. Refer to CCI Notes 2/1Ultraviolet Filters for further information about UV damage a...
Article
Full-text available
Minimizing the exposure of UV on a collection is important due to the cumulative damage it can cause to the colour and structure of materials. This Note discusses different ways to measure UV and provides guidelines to estimate its potential impact on a collection. Refer to CCI Note 2/1 Ultraviolet Filters for further information about UV damage an...
Conference Paper
Full-text available
The reactivity towards cellulose of various volatile compounds commonly released by paper was studied. Sheets of Whatman No. 1 (W1) and No. 40 (W40) were exposed to various concentrations of these compounds in vapour phase ranging from 20 to 80 ppm in closed vessels for 52 days in controlled ambient conditions, after which they were hygrothermally...
Article
Full-text available
The reactivity towards cellulose of various volatile compounds commonly released by paper was studied. Sheets of Whatman No. 1 (W1) and No. 40 (W40) were exposed to various concentrations of these compounds in vapour phase ranging from 20 to 80 ppm in closed vessels for 52 days in controlled ambient conditions, after which they were hygrothermally...
Article
Full-text available
Introduction As long as people have been collecting precious objects, they have taken steps to protect them from the obvious threats of being crushed, stolen, burned, flooded, or eaten by pests. However, by the middle of the 20th century, there was a growing realization within the museum community that there were some other threats (e.g. pollutants...
Technical Report
Full-text available
Wood used to make supports or containers for artifacts is often sealed with commercially available aluminum barrier foils. This Note describes a low-cost method for making a similar product from readily available plastic and aluminum foil. A low-cost alternative to commercial products such as Marvelseal can be created using aluminum foil and polye...
Technical Report
Full-text available
Pour rendre étanche le bois qui sert à fabriquer des supports ou des contenants pour artéfacts, on utilise souvent des pellicule d'aluminium plastifiée que l'on trouve sur le marché. Dans cette Note, on décrit une façon peu coûteuse de fabriquer un produit comparable, à partir de plastique et de papier d'aluminium.
Chapter
Full-text available
Original web document can be found at: http://canada.pch.gc.ca/eng/1444924955238
Article
Full-text available
The formation of corrosion products and the corrosion sensitivity of copper and lead were studied under experimental conditions in which formaldehyde (methanal), formic (methanoic) and acetic (ethanoic) acid concentration, relative humidity (RH) and duration of exposure were varied. Levels offormic acid above 0.4 parts per million based on volume (...
Chapter
Full-text available
Article
Full-text available
Gas chromatography-mass spectrometry was used to analyse off-gassing from three archival boxes that had an acidic smell. A number of volatile organic compounds were found, including acetic (ethanoic) acid, likely to be generated by Jade 403, a poly(vinyl acetate/ethylene) adhesive that had been used in the boxes. The aim of this study was to assess...
Article
Full-text available
Gas chromatography-mass spectrometry was used to analyse off-gassing from three archival boxes that had an acidic smell. A number of volatile organic compounds were found, including acetic (ethanoic) acid, likely to be generated by Jade 403, a poly(vinyl acetate/ethylene) adhesive that had been used in the boxes. The aim of this study was to assess...
Book
Full-text available
Coatings are used in museums, archives, and galleries for new construction, storage facilities, or exhibitions; but coatings have the potential to cause damage (such as corrosion and discoloration) to objects either by direct contact or the emission of volatile compounds. Most problems caused by contact can be solved by using interleaves, and probl...
Technical Report
Full-text available
Oak is a symbol of strength and durability, and its use for exhibiting valuables has always been popular. Unfortunately, it is very acidic (the main volatile compound released by oak is acetic acid), and many artifacts are at risk when in contact with or in the vicinity of oak. This Note discusses the potential problems of using oak display cases,...
Article
Full-text available
Many lead artifacts are danzaged after being kept for a short period in enclosures that contain materials which emit carboxylic acids. The formation of corrosion products and the corrosion sensitivity of lead were studied under experimental conditions in which the duration of exposure, the acetic acid (ethanoic acid) concentration and the relative...
Article
Full-text available
Twenty-two commercial coatings were chosen, based on their film-forming mechanisms, to study the equilibrium concentrations of volatile organic compounds (VOCs) and their emission rates at steady state. Concentrations of acetic acid (ethanoic acid) and total VOCs were measured using a thermal desorption unit coupled with a gas chromatograph. Almost...
Article
Full-text available
In 1983 the Canadian Conservation Institute (CCI) initiated a project to evaluate 27 poly(vinyl acetate) (PVAC) and 25 acrylic adhesives on the basis of pH, emission of harmful volatiles, flexibility/strength and yellowing upon dark aging at room temperature and fluorescent light aging. Measurement of the pH of extracts showed that the PVAC adhesiv...
Conference Paper
Full-text available
The aim of this paper is to establish an approach for the use of display materials by minimizing the risk of damaging artefacts. This preventive approach is based on the understanding of the nature of artefacts and materials and their possible interactions in the same environment. Appropriate selection of materials and adequate control of their nox...
Working Paper
Full-text available
With Scott Williams as co-author.
Article
Full-text available
Certain materials which are used for the fabrication of supports, display cases, storage cabinets, or other uses associated with museum artifacts emit volatile acidic compounds. The detection of these compounds is important due to the adverse effect they can have on artifacts. A pH indicator strip saturated in a glycerin-water solution gives one lo...
Article
Full-text available
The afterglow resulting from the nitrogen atom recombination in a flowing Ar-N2 microwave discharge (915 MHz and 100 W) is characterized by the first positive emission from N2 (B,V'). This emission occurs with a vibrational enhancement which is shifted from V'=11 in pure nitrogen to V'=8 in an Ar-2%N2 mixture. The N-N recombination rates producing...

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Projects

Projects (6)
Project
varia but excluding pollutants
Project
Preventive conservation aspect of display cases
Project
Understanding impact of pollutant to heritage objects and control methods