5.1.3.1 5.5 - 24 h, 25°C, about 70% loss of activity 2230 5.1.3.1 6.5 9.5 22 h, 0°C, stable 738147 5.1.3.1 7 8 24 h, 25°C, stable 2230 5.1.3.1 9 - 24 h, 25°C, about 20% loss of activity 2230