ICH Stability Zones

Zone Type of Climate
Zone I Temperate zone
Zone II Mediterranean/subtropical zone
Zone III Hot dry zone
Zone IV Hot humid/tropical zone
Zone IVb ASEAN testing conditions hot/higher humidity

Long Term Testing Conditions

Climatic Zone Temperature Humidity Minimum Duration
Zone I 21ºC ± 2ºC 45% rH ± 5% rH 12 Months
Zone II 25ºC ± 2ºC 60% rH ± 5% rH 12 Months
Zone III 30ºC ± 2ºC 35% rH ± 5% rH 12 Months
Zone IV 30ºC ± 2ºC 65% rH ± 5% rH 12 Months
Zone IVb 30ºC ± 2ºC 75% rH ± 5% rH 12 Months
Refrigerated 5ºC ± 3ºC No Humidity 12 Months
Frozen -15ºC ± 5ºC No Humidity 12 Months

 

Accelerated and Intermediate Testing Conditions

Climatic Zone Temperature Humidity Minimum Duration
Accelerated Ambient 40ºC ± 2ºC 75% rH ± 5% rH 6 Months
Accelerated Refrigerated 25ºC ± 2ºC 60% rH ± 5% rH 6 Months
Accelerated Frozen 5ºC ± 3ºC No Humidity 6 Months
Intermediate 30ºC ± 2ºC 65% rH ± 5% rH 6 Months

 

[sg_popup id=1]

ICH Stability Zones
Subscribe to Receive E-Mail Updates: