• 1.0
• HQ H071657
• Jul 28, 2010

• Type: as BMS described it, was a narrow description for industry purposes. For example, the term HDI could include HDI Trimers, HDI Biurets, pure HDI, and crude HDI. In response to a request for more information, Bayer stated that it sought a ruling for the commercial interchangeability of only monomeric 1,6-Hexamethylene diisocyanate with monomeric 1,6-Hexamethylene diisocyanate. The letter to the lab requested information as to whether the terms Desmodur H, monomeric 1,6-Hexamethylene diisocyanate, or any other names attached to CAS-No. 822-06-0, could refer to a different grade, pure, or crude monomeric 1,6-Hexamethylene diisocyanate. • HTSUS:
   Related:   230898; 227473; 950415; 229070; H037294; H074002   

Substitution, unused merchandise drawback: commercial interchangeability; 19 U.S.C. § 1313(j)(2); 19 C.F.R § 191.32(c); monomer 1,6-Hexamethylene diisocyanate ("HDI"), Desmodur H, CAS-No. 822-06-0