NIST SRM 3186 Glycerin (99.5% + Purity) from Mexico
Ultra-high purity glycerin certified by NIST for quantitative NMR and Karl Fischer water content analysis. Classified HTS 3822.90.00.00 as certified reference for pharmaceutical and food grade glycerol purity verification. Certified purity and impurity profile.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• USP/EP compliance documentation if for pharma use; NIST CoA mandatory
• Non-hazardous but verify glycerin import quotas
• Glass ampoule packaging protection