Arsenic in historic books: identifying the bindings at risk
Scheele's green, Paris green: how portable X-ray fluorescence makes it possible to sort the arsenical bindings of a historic collection, without sampling and without damage.
Swiss Waste Ordinance 2026: what changed on 1 January, and what still applies
The limit values stay the same. Metal recovery from fly ash is postponed to 2028. And the 55 % energy recovery threshold now applies. Here is what really matters in the recent revisions of the Waste Ordinance.