- for the same substance with 3% or less free acid, to be classified as UN 2291 LEAD COMPOUND, SOLUBLE, N.O.S., 6.1, PG III or as UN 3288 TOXIC SOLID, INORGANIC, N.O.S., 6.1, PG III, special provision VV9b applies.
), classe 6.1, groupe d'emballage III, ou 3288 (SOLIDE INORGANIQUE TOXIQUE, N.S.A.