1. Activated Sludge Respiration Inhibition Test, 1984. OECD Guideline for Testing of Chemicals 209. Organisation for Economic Co-operation and Development, Paris
2. Aerobic Aquatic Biodegradation, 1992. US Environmental Protection Agency Guideline Section 796.3100
3. Assessment of the Biodegradation of Chemicals in the Marine Environment, 1993. ECETOC Technical Report No. 54. European Centre for Ecotoxicology and Toxicology of Chemicals, Brussels
4. Bartz, W.J., 1997. Lubricants and the environment. New Directions in Tribology. Plenary Invited Paper. In: 1st World Tribology Congress, pp. 103–119
5. The ISO Headspace CO2 biodegradation test;Battersby;Chemosphere,1997