Division 3.3.6.2 Critical flow venturi (CFV) Original text. Later amendments are not shown. 3.3.6.2.1Division 3.3.6.2.1 3.3.6.2.2Division 3.3.6.2.2 3.3.6.2.3Division 3.3.6.2.3 ← Division 3.3.6.1.1 Division 3.3.6.2 Division 3.3.6.2.1 →