1. AWPA A7-93 (1993) Standard for wet ashing procedures for preparing wood for chemical analysis
2. AWPA E11-97 (1997) Standard method of determining the leachability of wood preservatives. American Wood Protection Association
3. DIN 38406-7 (1991) German standard methods for the examination of water, waste water and sludge; cations (group E); determination of copper by atomic absorption spectrometry (AAS) (E 7)
4. EN 84 (1997) Wood preservatives—accelerated ageing of treated wood prior to biological testing—leaching procedure. European Standard
5. Göttsche R, Marx H-N (1989) Kupfer-HDO – ein vielseitiger Wirkstoff im Holzschutz. Holz Roh- Werkst 47:509–513