1. To accelerate the drying process, the desiccators can be used under vacuum.

2. Leave it to cool in a desiccator and weigh.

3. Weigh it after it has been cooled in a desiccator.

4. Desiccator, containing freshly activated silica gel or an equivalent desiccant with a water content indicator

5. Between 133 °C and 135 °C, after vacuum drying for four hours in a sulphuric acid desiccator

6. Allow the crucible to cool in a desiccator to ambient temperature and weigh rapidly.

7. After cooling, complete the weighing of the weighing bottle within two minutes of its removal from the desiccator.