lexiara

preamble_1721

However, where only LC50 data relating to 4-hour exposure to the vapours are available, such figures can be multiplied by two and the product substituted in the above criteria, i.e. LC50 (4 hour) × 2 is considered the equivalent of LC50 (1 hour).

· All articles ·

Source: EUR-Lex (Cellar) · retrieved 2026-10-31 · Text as adopted (Official Journal); later amendments are not incorporated in this text.