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For a decision between a MH or a MNH entry, the relevant hazardous properties are HP 4 ‘Irritant — skin irritation and eye damage’ and HP 5 ‘Specific Target Organ Toxicity (STOT)/Aspiration Toxicity’. Corresponding concentration limits are laid down in Annex III to the WFD (cf. Annex 3.4 and 3.5) and are also displayed in Table 6. Please note that Table 6 is based on hazard statement codes assigned to calcium oxide and calcium hydroxide have been taken from self-classifications. In case the applicability of these hazard statement codes can be validated by using additional information (e.g. information from the waste generating process), the consequence is:
Source: EUR-Lex (Cellar) · retrieved 2026-09-25 · Text as adopted (Official Journal); later amendments are not incorporated in this text.