T/CRIAC 0088-2023 Chemical reagents - Control products for gas chromatography - Anhydrous ethanol
T/CRIAC 0088-2023
Basic Information
Scope
Scope: This document specifies the characteristics, specifications, testing, inspection rules, packaging, and marking of anhydrous ethanol used as a control substance for gas chromatography of chemical reagents. This document is applicable to the inspection of anhydrous ethanol used as a control substance for gas chromatography of chemical reagents. Main technical contents: 1. Content (C2H5OH), w/% ≥ 99.92 2. Density (20℃), ρ/(g/mL) 0.789~0.791 3. Mixed with water test - Passed 4. Evaporation residue, ω/% ≤ 0.00055 5. Acidity (calculated as H+), b/(mmol/g) ≤ 0.00026 6. Alkalinity (calculated as OH-), b/(mmol/g) ≤ 0.000057 7. Water content (H2O), w/% ≤ 0.28 8. Methanol (CH3OH), w/% ≤ 0.029 9. Isopropanol [(CH3)2CHOH], w/% ≤ 0.003 10. Carbonyl compounds (calculated as CO), w/% ≤ 0.003 11. Carbonizable substances - Passed 12. Iron (Fe), w/% ≤ 0.000011 13. Zinc (Zn), w/% ≤ 0.000011 14. Reducing potassium permanganate substances (calculated as O), w/% ≤ 0.00025