Limit Flocculation Unit

**Semantic type:** Quantitative Concept

**Definition:** A unit of measure equivalent to 1 unit of reference antitoxin (K 1/67, Statens Serum Institut), which is calibrated against an international reference toxoid.

**Synonyms:** - LIMIT OF FLOCCULATION - LIMIT OF FLOCCULATION - Lf - LfU - LfU - Limit of flocculation - [Lf] - [Lf] - [Lf] - [Lf] - [Lf] - limit flocculation unit(s)