Prepared at the 17th JECFA (1973), published in FNP 4 (1978) and in FNP
52 (1992). Metals and arsenic specifications revised at the 61st JECFA
(2003). A group ADI ‘not specified’ was established for ascorbic acid and its
Ca, K and Na salts at the 25th JECFA (1981).