sodium acetate-acetic acid-formalin fixative

so·di·um ac·e·tate-a·ce·tic ac·id-form·a·lin fix·a·tive

(SAF) (sō'dē-ŭm as'ĕ-tāt ă-sē'tik as'id fōrm'ă-lin fiks'ă-tiv)

Mixture used to fix fecal specimens for subsequent concentration and staining of smears.