R402B Quality Standard: Purity, %≥99.9 Moisture, ppm≤10 Acidity, ppm≤1 Vapor Residue, ppm≤100 Appearance, Colorless Package: Disposable steel cylinder 26LB/11.8KG, refillable steel cylinder 12L, 14.3L, steel cylinder 400L, 800L, 926L, ISO tank