1. first series, CAC/FAL 2‐1973,1974
2. Official Methods of Analysis of the AOAC 1965 24.011–24.014 24.016–24.017 24.006–24.008).
3. Official Methods of Analysis of the AOAC 1965 24.053 (und 24.008 24.043 j 24.046 24.047 u. 24.048).
4. Joint FAO/WHO Expert Committee on Food Additives; evaluation of certain food additives 16th report 1972 (siehe auch Lit. 1).
5. Min. of Agric. Fisheries and Food Working Party on the Monitoring of Foodstuffs for Mercury and other Heavy Metals 1st report London1971.