Volume 20, Number 7
Paper Aging Research at TNO
John Havermans, who works as a chemist at the TNO Centre for Paper
and Board Research in Delft, sent in the following news on September
Some of the research topics he and/or his co-workers are working
on or planning to investigate are:
- Effects of light on deacidified papers. By measuring oxygen
consumption, they can follow the light-induced deterioration of
deacidified papers. This project is ready to begin in 1997.
- Effects of accelerated aging (by autoxidation) on different
grades of deacidified and untreated papers. Papers will be exposed
to an oxidative agent, ozone. This project is ready to begin
- A literature survey on the effects of (high) alkalinity on
old and oven-aged papers after deacidification. This project
will be ready to start within a few months.
- Development of a universal procedure for archive assessment
(i.e., a condition survey procedure). The amount of damage to
objects in archives can be quantified by recording the consultability
and type and amount of damage, using a new sampling procedure.
This can help policy makers in archives create a good budget
for conservation work. This project is being carried out on commission
for the Dutch State Archives, and will be ready within a year.
- Following the effects of ambient levels of air pollutants
on natural aging of different papers stored in two rooms at the
Dutch National Archives. One storage room has air purification,
and the other has none.