01. Scope
02. Normative references
03. Dimensions
3.1 Connection dimensions at the differential pressure
instrument
3.2 Connection dimensions at the shut-off device
3.3 Seal rings
3.4 Flange connection
04. Installation
05. Material for the bolts
06. Marking
Annex ZA (normative) Normative references to international
publications with their corresponding European publications