Division 3 REAGENTS United Kingdom Original text. Later amendments are not shown. All reagents should be of analytical purity. 3.1Division 3.1 3.2Division 3.2 3.3Division 3.3 3.4Division 3.4 3.5Visualizing agent I: 3.6Visualizing agent II: 3.7Reference solution: ← Division 2 Division 3 Division 3.1 →