NEN EN 12972 : 2015

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Types of tank inspection
  4.1 Inspection for type approval
  4.2 Initial inspection
  4.3 Periodic inspection
  4.4 Intermediate inspection
  4.5 Exceptional checks
5 Units used for tank inspection
  5.1 General
  5.2 Inspection of the necessary documents
  5.3 Verification of the tank against the design
  5.4 Inspection of the tank interior
  5.5 Inspection of the tank exterior
  5.6 Hydraulic pressure test
  5.7 Vacuum testing
  5.8 Leakproofness test
  5.9 Determination of water capacity
  5.10 Inspection of service equipment
  5.11 Inspection of frame or other structural equipment
       of portable tanks
  5.12 Testing report,certificate and marking
Annex A (informative) Example for a data sheet
        according to 4.1.3
Annex B (informative) Certificate of initial periodic,
        intermediate inspection and exceptional
        check
Annex C (informative) Pressure testing with gases -
        hazards and precautions
Annex D (normative) Tank plates for tanks of road tankers
        for the transport of dangerous goods
Annex E (normative) Tank plates for portable tanks and
        tank containers for the transport of dangerous
        goods
Annex F (informative) Survey Table

Defines testing, inspection and marking for the type approval, initial inspection, periodic inspection, intermediate inspection and exceptional check of metallic tanks (shell and equipment) of fixed tanks (tank vehicles), demountable tanks, rail tank wagons, portable tanks and tank containers for the transport of dangerous goods.