1. BASF Handbook—the “Trilon” range of sequestrants (1972) p. 10.
2. Block, S.S. (1977). Disinfection, Sterilisation and Preservation. Lea & Febigel.
3. BS 5283: Glossary of terms relating to disinfection, p. 4. (1976) British Standards Institute, London.
4. Elmore, D.G. (1980) Proceedings of the Brewing Technology Conference, Harrogate, 8.
5. Hobbs, G. and Wilson, G.S. (1942) Journal of Hygiene, 42, 436.