NEN EN 1253-2 : 2015

Foreword
1 Scope
2 Normative references
3 Definitions
4 Loading test
    4.1 Test loads and permanent set
    4.2 Testing machine
    4.3 Test blocks
    4.4 Procedure
5 Water seal
    5.1 Depth of water seal
    5.2 Resistance of water seal to pressure
6 Dimensions of apertures in gratings
7 Blockage prevention - trapped gullies
    7.1 Access for cleaning
    7.2 Self-cleansing capacity
    7.3 Anti-blockage
8 Position of side inlets
9 Thermal behaviour
    9.1 Temperature cycling for floor gullies
          9.1.1 General
          9.1.2 Additional test for gullies for use with
                  sheet floor covering
    9.2 Roof outlets
    9.3 Behaviour when exposed to hot bitumen or asphalt
10 Tightness
    10.1 Odour-tightness
    10.2 Watertightness
    10.3 Gullies for use with sheet floor covering and/or
          membrane
          10.3.1 Gullies for use with sheet floor covering
                  or a membrane
          10.3.2 Gullies for use with both sheet floor
                  covering and membrane
    10.4 Mechanical strength
          10.4.1 Extensions for gullies for use with sheet
                  floor covering
          10.4.2 Membrane clamping ring
          10.4.3 Gullies with factory affixed skirt membrane
11 Flow rates
    11.1 Water through the grating
    11.2 Water through the grating and side inlets
    11.3 Roof outlets for siphonic drainage systems
          11.3.1 Test arrangement
          11.3.2 Fitness for purpose
          11.3.3 Coefficient of hydraulic loss
12 Test allocation and sequence
Annex A (informative) Test for floor gullies and roof outlets
Annex B (normative) Sequence of tests

Defines roof drains and floor gullies without trap for use inside buildings, also gives guidance for places of installation and specifies requirements for the construction, design, performance and marking as well as test methods of factory made roof drains and floor gullies without trap (further: floor gullies) for buildings, irrespective of the material for use in drainage systems.