Each GCMS-PT single test panel comprises two independently verified samples engineered for detection across both field-portable and laboratory-based GC-MS systems. Samples are individually coded and provided in standardized quantities—approximately 0.5 g of solid or 1 mL of liquid material. Specific targets vary by sample, but cover compound classes such as explosives precursors, white powders, illicit drug-related chemicals, pesticides and related chemicals, TICs & TIMs, chemical warfare-related compounds, poisons, and pharmaceuticals. **Special Offer:** Purchase two consecutive rounds and unlock a $300 discount code toward your third round. This exclusive promotion rewards your commitment to continuous proficiency verification, making it economical to maintain consistent testing schedules throughout the year. 2026 PT dates: Title Registration Deadline Sample Ship Date Q1 Panel 1-26-2026 2-9-2026 Q3 Panel 4-27-2026 5-11-2026 Q3 Panel 7-27-2026 8-10-2026 Q4 Panel 10-26-2026 11-9-2026 Included in each panel: Analysis Instructions including sample preparation directions Safety Information Submission Schedule Reporting Spreadsheet Report of Evaluation
