§ 186.5800 - S,S,S-Tributyl phosphorotrithioate.  


Latest version.
  • A tolerance of 6 parts per million is established for residues of the defoliant S,S,S-tributyl phosphorotrithioate in or on cottonseed hulls. Such residue may be present only as a result of application of the defoliant to the growing cotton crop.