Take 1 tsp oil bags + water, volume 180 cc soaked du cool temperature-8c for a period of 24 hours monitoring. the form of the bag? If the image failed.
Remove the bags of one teaspoon of oil + 180 cc of water to soak Toe cold temperatures - 8c is a 24-hour check cracking or deformation of the bag or not, if not broken or deformed.
The bag 1 teaspoon oil filling water to the 180 CC soak Tu's evening at the temperature - 8C for 24 hours check, broken or deformed. Of the bag or not. If broken or deformed to pass.