NEN EN 14420-6 : 2013

1 Scope
2 Normative references
3 Survey
4 Dimensions, designations
  4.1 Hose fittings with TW couplings
      4.1.1 General
      4.1.2 Hose tail with female TW coupling
      4.1.3 Hose tail with male TW coupling
      4.1.4 Protecting ring
  4.2 Male coupling (type VK)
      4.2.1 General
      4.2.2 Components
  4.3 Female coupling (type MK)
      4.3.1 Female coupling (type MK) DN 50 and DN 80
      4.3.2 Female coupling (type MK) DN 100
      4.3.3 Designation
      4.3.4 Components
  4.4 Dust cap (type MB)
      4.4.1 General
      4.4.2 Components
  4.5 Dust plug (type VB)
      4.5.1 General
      4.5.2 Components
5 Materials
  5.1 General
  5.2 Hose tail types MKST and VKST
  5.3 Protecting rings of hose tail type MKST and VKST
  5.4 Thread sealing ring of male coupling type VK
  5.5 Fastening component of female coupling type MK
  5.6 Sealing ring of female coupling type MK
6 Design
7 Type approval testing and quality control
  7.1 General
  7.2 Testing for trueness to gauge size
8 Marking
9 Fitting of hose couplings
Annex A (normative) Gauges for TW tank truck couplings
  A.1 General
  A.2 Design; designation, dimensions and materials
      A.2.1 General
      A.2.2 Gauge for sealing ring
      A.2.3 Gauge for tension rings
      A.2.4 Gauge for curved pieces and plugs
      A.2.5 Calliper for caps
  A.3 Marking
Bibliography