Division 6 PROCEDURE

Precautions:

1. 1..

   Avoid direct exposure to sunlight.

2. 2..

   All the glassware, stoppers and removal material should be perfectly clean. It is recommended that they be rinsed and boiled with water or that they be treated with steam.

3. 3..

   Avoid using plastic materials (stoppers for example) as they may contain phenols.

4. 4..

   Saliva contains phosphatase; contamination by traces of saliva must therefore be carefully avoided.