If temperature is high only during the day and fall overnight, this is unlikely to present a significant issue. Chemical stores with effective ventilation normally manage hot weather better than may be imagined.
However, if the temperature in your store room stays above 28’c for 24hrs a day, and for a week or longer then consider these additional controls.
• Keep the store as cool as possible. Increase ventilation when possible and ensure the ventilation system is operating correctly. A minimum ventilation rate of 2 air changes per hour, maintained 24 hours a day, with make-up air at low level and extraction at high level, is generally sufficient to remove hazardous fumes and maintain a consistent temperature. If the store frequently becomes hot, the ventilation system may be inadequate.
• If the store has windows, install blinds and keep chemicals out of direct sunlight. Grey reflective blinds are recommended, as they help reduce heat gain. Black blinds are not suitable because they absorb heat and can increase room temperatures.
• Use ice cube bags or reusable freezer blocks as temporary cooling packs. Where necessary, position them at the bottom of the storage cabinet, ensuring that the chemical container either rests on the cooling packs or is surrounded by them within the secondary containment.
• Take care when entering the store after it has been unattended for a period of time, particularly following hot weather.
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For further information.
