PVC - a source of chlorides
by Morten Ryhl-Svendsen
On the pictures below a lamp for a museum showcase is shown, made out of a hard PVC gutter. At first the idea seems good: the material is cheap, it's available at every handyman store, and the shape is perfect for a long show case lamp.
The lamp is from a small Danish museum. Thanks to the staff at Viborg Amtskonservering for leading my attention to the story.
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IAQ in Museums and Archives, October 01st, 2001