prEN 1253-6

Gullies for buildings - Part 6: Trapped floor gullies with a depth of water seal less than 50 mm

This document classifies floor gullies for use inside buildings, gives guidance for places of installation and specifies requirements for the construction, design, performance and marking of factory made gullies for buildings, irrespective of the material, for use in drainage systems requiring a trap with a depth of water seal of less than 50 mm (referred to as floor gullies).
Note: Floor gullies with a depth water seal of less than 50 mm are not covered by Part 1, Part 7, Part 8.
These products are intended to be installed only where:
- space limitation will not accommodate a gully with a 50 mm water seal;
- the building does not exceed a ground-floor and three floors above;
- at least two sanitary appliances are installed in addition to the gully but with only one toilet on the same branch (connection pipe);
- or secondary or branch ventilation is installed according to clauses 4.3.2 or 4.3.4 of EN 12056-2.

Abläufe für Gebäude - Teil 6: Bodenabläufe mit Geruchverschluss mit einer Geruchverschlusshöhe von weniger als 50 mm

Dieses Dokument klassifiziert Bodenabläufe für den Einsatz innerhalb von Gebäuden, gibt eine Anleitung hinsichtlich der Einbaustellen und legt Anforderungen an die Konstruktion, Ausführung, Funktion und Kenn-zeichnung von werkmäßig hergestellten Abläufen für Gebäude, unabhängig vom Werkstoff, zur Verwendung in Entwässerungsanlagen, mit Geruchverschluss mit einer Geruchverschlusshöhe von weniger als 50 mm (im Folgenden als Bodenabläufe bezeichnet) fest.
ANMERKUNG Bodenabläufe mit einer Geruchverschlusshöhe von weniger als 50 mm werden in Teil 1, Teil 7 und Teil 8 nicht behandelt.
Diese Produkte sind ausschließlich für den Einbau in den folgenden Fällen bestimmt:
 aus Platzgründen kann kein Bodenablauf mit einer Geruchverschlusshöhe von 50 mm untergebracht werden;
 das Gebäude weist neben dem Erdgeschoss nicht mehr als drei Stockwerke auf;
 mindestens zwei Sanitärausstattungsgegenstände sind zusätzlich zum Bodenablauf installiert, wobei jedoch nur eine Toilette am gleichen Abzweig vorhanden ist (Verbindungsrohr);
 oder es ist eine sekundäre Belüftung bzw. Abzweigbelüftung in Übereinstimmung mit EN 12056-2, 4.3.2 oder 4.3.4 installiert.

Avaloirs et siphons pour bâtiments - Partie 6 : Siphons de sol avec garde d’eau inférieure à 50 mm

Le présent document classifie les siphons de sol utilisés à l’intérieur des bâtiments, fournit des recommandations pour les lieux d’installation et spécifie les exigences concernant la construction, la conception, les performances et le marquage des siphons de sol pour bâtiments fabriqués en usine, indépendamment des matériaux, destinés à être utilisés dans les réseaux d’évacuation nécessitant un siphon de sol ayant une profondeur de garde d’eau inférieure à 50 mm (appelés « siphons de sol » dans le reste du document).
NOTE Les siphons de sol ayant une profondeur de garde d’eau inférieure à 50 mm ne sont pas traités dans les Parties 1, 7 et 8.
Ces produits sont destinés à être installés uniquement lorsque :
⎯ l’installation d’un siphon de sol avec une garde d’eau de 50 mm est impossible pour des raisons d’encombrement ;
⎯ la hauteur du bâtiment ne dépasse pas un rez-de-chaussée surmonté de trois étages ;
⎯ au moins deux appareils sanitaires sont installés en plus du siphon de sol mais avec une seule toilette sur la même conduite de raccordement ; ou
⎯ une ventilation secondaire ou une conduite de raccordement est installée conformément à l’EN 12056-2, 4.3.2 ou 4.3.4.

Odtoki v stavbah - 6. del: Talni odtoki z zaporo vode na višini manj kot 50 mm

General Information

• Status: Not Published
• ICS: 91.140.80 - Drainage systems
• Technical Committee: CEN/TC 165 - Waste water engineering
• Drafting Committee: CEN/TC 165/WG 11 - Waste fittings
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Due Date: 26-Apr-2022
• Completion Date: 26-Apr-2022
• Ref Project: oSIST prEN 1253-6:2020 - Gullies for buildings - Part 6: Trapped floor gullies with a depth of water seal less than 50 mm

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 1253-6:2020
01-september-2020
Odtoki v stavbah - 6. del: Talni odtoki z zaporo vode na višini manj kot 50 mm

Gullies for buildings - Part 6: Trapped floor gullies with a depth of water seal less than 50

Abläufe für Gebäude - Teil 6: Bodenabläufe mit Geruchverschluss mit einer
Geruchverschlusshöhe von weniger als 50 mm

Avaloirs et siphons pour bâtiments - Partie 6 : Siphons de sol avec garde d’eau inférieure

à 50 mm
Ta slovenski standard je istoveten z: prEN 1253-6
ICS:
91.140.80 Drenažni sistemi Drainage systems
oSIST prEN 1253-6:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 1253-6:2020
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oSIST prEN 1253-6:2020
DRAFT
EUROPEAN STANDARD
prEN 1253-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2020
ICS 91.140.80
English Version
Gullies for buildings - Part 6: Trapped floor gullies with a
depth of water seal less than 50 mm

Avaloirs et siphons pour bâtiments - Partie 6: Siphons Abläufe für Gebäude - Teil 6: Bodenabläufe mit

de sol avec garde d'eau inférieure à 50 mm Geruchverschluss mit einer Geruchverschlusshöhe von

weniger als 50 mm

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 165.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1253-6:2020 E

worldwide for CEN national Members.
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Contents Page

4.1 General ................................................................................................................................................................ 8

4.2 Appearance ........................................................................................................................................................ 9

4.3 Apertures in gratings ..................................................................................................................................... 9

4.4 Resistance of water seal to pressure ........................................................................................................ 9

4.4.1 Requirements ................................................................................................................................................... 9

4.4.2 Test method ...................................................................................................................................................... 9

4.5 Blockage prevention ................................................................................................................................... 10

4.5.1 Access for cleaning ....................................................................................................................................... 10

4.5.2 Self-cleansing capacity ............................................................................................................................... 11

4.5.3 Anti-blockage ................................................................................................................................................. 11

4.6 Places of installation ................................................................................................................................... 11

4.6.1 General ............................................................................................................................................................. 11

4.6.2 Exceptions ....................................................................................................................................................... 11

4.7 Materials .......................................................................................................................................................... 12

4.8 Thermal behaviour of floor gullies ........................................................................................................ 12

4.8.1 General ............................................................................................................................................................. 12

4.8.2 Requirements ................................................................................................................................................ 12

4.8.3 Test method ................................................................................................................................................... 12

4.8.4 Additional test for floor gullies for use with sheet floor coverings and liquid applied

membranes ..................................................................................................................................................... 12

4.9 Tightness ......................................................................................................................................................... 14

4.9.1 Odour-tightness ............................................................................................................................................ 14

4.9.2 Watertightness of bodies ........................................................................................................................... 15

4.9.3 Watertightness of extensions .................................................................................................................. 15

4.10 Mechanical strength .................................................................................................................................... 15

4.10.1 Loading strength........................................................................................................................................... 15

4.10.2 Clamping ring strength .............................................................................................................................. 17

4.10.3 Additional mechanical strength according to the installation .................................................... 17

4.10.4 Floor gullies for use with liquid applied membranes ..................................................................... 21

4.11 Flow rates ........................................................................................................................................................ 21

4.11.1 Principle .......................................................................................................................................................... 21

4.11.2 Requirements ................................................................................................................................................ 21

4.11.3 Test method ................................................................................................................................................... 22

4.11.4 Test arrangement ......................................................................................................................................... 22

Annex A (normative) Sequence of the tests ....................................................................................................... 25

Annex B (normative) Examples of top view of the positioning of shape of test blocks applied

on the gratings ............................................................................................................................................... 26

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European Foreword

This document (prEN 1253-6:2020) has been prepared by Technical Committee CEN/TC 165 “Waste

water engineering”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.

Within its program of work, Technical Committee CEN/TC 165 requested CEN/TC 165/WG 11

“Gratings, covers and other ancillary components for use inside buildings” to prepare the following

standard:
EN 1253-6, Trapped floor gullies with a depth water seal of less than 50 mm.

The EN 1253 series under the main title Gullies for buildings will actually consist of the following parts:

— Part 1: Trapped floor gullies with a depth water seal of at least 50 mm;
— Part 2: Roof drains and floor gullies without trap;
— Part 3: Evaluation of conformity;
— Part 4: Access covers;
— Part 5: Gullies with light liquids closure;
— Part 6: Trapped floor gullies with a depth of water seal less than 50 mm;
— Part 7: Trapped floor gullies with mechanical closure;
— Part 8: Trapped floor gullies with combined mechanical closure and water seal.

Since the versions of EN 1253-1 and EN 1253-2, the most significant technical changes are the

following:
a) grouping of “Requirements” and “Test method” articles for a test;

b) adding Annex B with examples of top view of the positioning of shape of test blocks applied on the

gratings;
c) adding tolerance.
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1 Scope

This document classifies floor gullies for use inside buildings, gives guidance for places of installation

and specifies requirements for the construction, design, performance and marking of factory made

gullies for buildings, irrespective of the material, for use in drainage systems requiring a trap with a

depth of water seal less than 50 mm (referred to as floor gullies).

NOTE Floor gullies with a depth of water seal less than 50 mm are not covered by Part 1, Part 7, Part 8.

These products are intended to be installed only where:
— space limitation will not accommodate a gully with a 50 mm water sea;
— the building does not exceed a ground-floor and three floors above;

— at least two sanitary appliances are installed in addition to the gully but with only one toilet on the

same branch (connection pipe);

— or secondary or branch ventilation is installed according to EN 12056-2, 4.3.2 or 4.3.4.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 124 (all parts), Gully tops and manhole tops for vehicular and pedestrian areas

EN 476, General requirements for components used in drains and sewers
EN 1253-3, Gullies for buildings — Part 3: Evaluation of conformity

EN 12056-2, Gravity drainage systems inside buildings — Part 2: Sanitary pipework, layout and

calculation
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
trapped floor gully

discharge fitting the top of which is a grating or cover capable of installation at ground or floor level,

intended to receive wastewater either through apertures in the grating and/or channels joined to the

body of the gully and to drain that wastewater through the outlet
Note 1 to entry: See Figure 1.

Note 2 to entry: In this European Standard, the term trapped “floor gully” includes linear products, such as

channel drains.
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a) Floor gully with side inlets and flange for b) Floor gully with flange for clamping

bonding membranes (example) membranes (fixed and loose flange) (example)

c) Floor gully with side inlets and flange for d) Channel drain with flange for bonding

clamping flexible flooring (e.g. PVC flooring) liquid applied membranes (example)

(example)
Key
1 finished floor 9 weep hole
2 grating/cover 10 flange for bonding membranes
3 extension 11 sediment bucket
4 trap 12 connecting flange with counter flange
5 depth of water seal (H ≥ 50 mm) a fixed flange
6 outlet b loose flange
7 body 13 flange for clamping flexible flooring with a clamping ring
14 seal
8 access for cleaning 15 flange for bonding liquid applied membrane
Figure 1 — Types of floor gullies
3.2
grating
removable component with apertures which permits the discharge of water
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3.3
frame

support for a grating or cover which is connected to a body either directly or by means of a membrane

clamping ring or an extension
3.4
cover
removable part of an access cover which covers the opening
3.5
body

part of a floor gully below or in the floor on which the grating/frame/extension is mounted, and to

which the pipework is connected
3.6
extension
component used to adjust the height of a grating or cover above a body
3.7
joint

connection between the adjacent ends of two components including the means of sealing

3.8
membrane clamping ring

component used to clamp a membrane or a sheet floor covering to a body or extension

3.9
connecting flange

separate or an integral part of a body or of an extension which receives a membrane or sheet floor

covering
3.10
external diameter
mean external diameter of the pipe barrel at any cross section
3.11
internal diameter
mean internal diameter of the pipe barrel at any cross section
3.12
trap

removable or integral part of the body which prevents, by means of water seal, the passage of foul air

from the outlet to the inlet
3.13
depth of water seal
effective height of water in the trap (H) which prevents the passage of foul air
Note 1 to entry: See Figure 1.
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3.14
domestic wastewater

water polluted by the human life, including water discharged from kitchens, laundry rooms, lavatories,

bathrooms, toilets and similar facilities
[SOURCE: EN 16323:2014, 2.1.2.3]
3.15
sheet floor covering

flexible watertight finished layer for floors affixed to the flange by bonding, welding and/or by means of

a clamping ring
3.16
membrane

watertight and damp proof layer attached to the floor gully either in the floor or on the floor

3.17
head of water
depth h of a water line over the frame of the floor gully
Note 1 to entry: See Figure 2.

Note 2 to entry: For floor gullies without frame, the depth of water line is the lowest level over the finished

floor.
Key
h head of water
Figure 2 — Head of water for floor gullies
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3.18
outlet
male or female connection to the discharge pipe
3.19
nominal size

numerical indication of size which is a convenient integer approximately equal to the internal diameter

(DN/ID) or the external diameter (DN/OD) in millimetres
3.20
clear opening

diameter of the largest circle that can be inscribed within the unsupported area of the grating

3.21
test load
specified load which a component is required to withstand
3.22
liquid applied waterproofing kit

particular combination of a defined set of components to be installed in liquid form for waterproofing

by application and/or incorporation and/or joining of the components in accordance with particular

design methods

Note 1 to entry: The liquid applied watertight kit is usually a paste-like composite material or a combination of

separate materials that can be poured, spread or sprayed on the subsurface by brush, roller or similar suitable

applicator.
4 Design and construction
4.1 General

Floor gullies shall be capable of being connected to the pipework system covered by relevant European

Standards, and, when installed in accordance with the manufacturer's instructions, shall form an

integral part of the building. There shall be no movement possible between the body and the floor,

which would impair the functioning of the installed gully.

In areas where pressure testing of the pipe system is necessary floor gullies for use in the ground floor

shall enable such test to be performed.

The upper surfaces of frame and grating shall be flush. When in position, it shall not be possible for

gratings and covers to be dislodged from the frame, but they shall be easy to be released for e.g.

maintenance and cleaning.

Traps shall be prevented, by design features such as fixings or weights, from uncontrolled floating or

becoming displaced.

Floor gullies and their components shall be resistant to normal actions of mechanical and thermal

character.
Floor gullies may be designed without side inlet.
Floor gullies shall be delivered with installation instructions.

All pipe joints to and from the floor gully shall be designed to be watertight in accordance with EN 476.

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4.2 Appearance

Internal and external surfaces shall be free from sharp edges and imperfections which could impair

functioning of the floor gully or give risk of injury.
4.3 Apertures in gratings

Apertures can be holes or slots of any shape and may also be formed between grating and frame.

By means of suitable measuring instruments or balls of suitable sizes, the dimensions of apertures in

grating shall be as specified in Table 1.
Table 1 — Apertures in gratings
Dimensions of apertures in gratings
Class Minimum width Maximum width
H 1,5 b 15 (max. 8 mm in barefoot areas)
K 3 4 0 (max. 8 mm in barefoot areas)
a 4 15 (max. 8 mm in barefoot areas)
L 15

In commercially used premises, gratings may also be used with a maximum width of apertures up to 31 mm.

Apertures of less than 4 mm width are permitted but shall not form part of the hydraulic tests.

4.4 Resistance of water seal to pressure
4.4.1 Requirements
The applied pressure which just causes passage of air shall be > 200 Pa.
4.4.2 Test method

Mount the floor gully in a test arrangement as illustrated in Figure 3, and run water through the gully

until the trap is filled.

Close the flap and set a pressure of −200 Pa by means of the bypass valves. Open the flap and fill the

trap with water.

Close the flap and slowly open after about 5 s. Repeat this procedure until the trap no longer loses

water, but no more than 5 times.

Remove 4 mm of water height; this corresponds to the reduction in the depth of water seal due to

evaporation over a period of disuse.

Apply to the outlet side a positive pressure such that flow of air just occurs. Record the pressure.

With the flap closed, set the desired negative pressure with the bypass valves, and read the manometer.

The sensors in the trap are connected to the recording device. When the flap is closed rapidly, the

desired vacuum pressure is established immediately.

By reversing the fan and securing the flap in the closed position, the arrangement can be used also for

the measurement of the resistance to positive pressure.
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Key
1 fan
2 bypass valves
3 flap
4 water seal
4a connection to pressure recorder
4b connection to water level recorder
5 drain cock
6 pressure measuring device (manometer)

Figure 3 — Typical test arrangement for determining the resistance of water seals to pressure

4.5 Blockage prevention
4.5.1 Access for cleaning
4.5.1.1 General

Floor gullies should have provision for mechanical cleaning of the outlet pipe systems leading to and

from the gully.

Any opening provided for mechanical cleaning shall be tested in accordance with 4.5.1.3.

4.5.1.2 Requirements

When an opening with an airtight and watertight cover or plug is provided, the clear diameter of such

opening shall be as specified in Table 2.
Table 2 — Access for cleaning
DN Dimensions of access for cleaning (mm)
DN ≤ 110 Ø > 32
125 ≤ DN ≤ 200 Ø > 50
4.5.1.3 Test method

Demount and remount those parts of the floor gully which are designed for cleaning access to the floor

gully itself and/or to the pipework to which it is connected.
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4.5.2 Self-cleansing capacity
4.5.2.1 Requirements

The self-cleansing capacity of floor gullies which cannot be cleaned by removing the trap, or by an

access for cleaning in accordance with 4.5.2.1, shall be tested in accordance with 4.5.2.2.

The expelled volume of glass beads for each of the flow rates in the interval between 0,3 l/s and 0,6 l/s

shall be greater than that indicated by the straight line between the two end points 0 % at 0,3 l/s and

50 % at 0,6 l/s. Expulsion of glass beads shall commence at a flow rate less than 0,3 l/s, and at least

50 % of the glass beads shall have been expelled at a flow rate of 0,6 l/s.
4.5.2.2 Test method

Supply cold water at (15 ± 10) °C at a rate of 0,2 l/s, 0,3 l/s, 0,4 l/s and 0,6 l/s to the test box.

At each of the water flow rates, supply the floor gully, with grating/cover removed, with 200 cm of

3 3

glass beads of (5 ± 0,5) mm diameter and a density of 2,5 g/cm to 3,0 g/cm . Supply the beads at a

steady and uniform rate for 30 s. Continue the flow of water for a further 30 s. Measure, in cm , the

volume of glass beads that has passed through the floor gully. Conduct the test three times at each

discharge rate. The average of the three results shall be taken.
4.5.3 Anti-blockage
4.5.3.1 Requirements
Floor gullies and their components shall not be liable to clogging.

Floor gullies with gratings or covers removed shall be capable of accommodating the passage of a 8 mm

diameter ball.
4.5.3.2 Test method

Pass a ball of 8 (−0,5/0) mm diameter through the floor gully, with the grating/cover removed, from the

inlet to the outlet merely by tilting the floor gully in the appropriate directions, no other force being

applied to the ball.
4.6 Places of installation
4.6.1 General

A guide for selecting the class of a floor gully appropriate to the place of installation is given below. The

selection of the appropriate class is the responsibility of the specifier.
a) Class H 1,5: Areas where no load is expected.

b) Class K 3: Areas without vehicular traffic, such as dwellings, commercial and some public buildings.

c) Class L 15: Areas with light vehicular traffic, such as in commercially used premises and public

areas.
4.6.2 Exceptions

Non-load bearing gratings for places of installation which are not accessible to vehicles and pedestrians

(protected by suitable masonry surroundings) and which are not covered by the places of installation

listed above nor by EN 124 shall at least conform to the test requirements given in 4.10.1.2 for class

H 1,5.
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4.7 Materials

Materials shall withstand a maximum intermittent wastewater temperature of 95 °C.

Materials shall withstand the stresses likely to occur during installation and operation.

Floor gullies made of materials which are not inherently corrosion-resistant shall be protected by

corrosion prevention treatment.
4.8 Thermal behaviour of floor gullies
4.8.1 General

This test simulates use under conditions of extreme water temperatures and establishes the integrity of

the complete product.
Floor gullies shall be classified as follows:
— Class A: Application in any place of installation;

— Class B: Application restricted to bathrooms in private dwellings only for DN 40 to DN 75.

4.8.2 Requirements

The floor gullies and their components shall show no visible deformation or change in the components'

surface structure which could affect their fitness for use.

The floor gullies shall satisfy the requirements for tightness (4.9.1 and 4.9.2).

4.8.3 Test method

Mount the floor gully in accordance with Figure 5. Connect a suitable pipe to the outlet of the floor gully

(the outlet shall be open all the time). When different versions of the same components exist, the test

shall be done for the least favourable of their combinations.
Admit water through the grating as follows:
1) (0,5 ± 0,05) l/s of hot water at (93 ± 2) °C for (60 ± 2) s;
2) pause for (60 ± 2) s;
3) (0,5 ± 0,05) l/s of cold water at (15 ± 10) °C for (60 ± 2) s;
4) pause for (60 ± 2) s.

Repeat this cycle 1 500 times (100 h) for class A products and 360 times (24 h) for class B products.

Check to ensure that there is no deformation or change in surface texture of any component which

would impair the fitness for use.

This test does not apply to floor gullies made exclusively of metallic materials.

4.8.4 Additional test for floor gullies for use with sheet floor coverings and liquid applied

membranes

This additional test shall be applied to floor gullies intended for installation in floor constructions

where the floor covering is a watertight material. The floor covering may be connected to the floor gully

by bonding, bonding and a clamping ring combination, or by a clamping ring alone.

Mount the floor gully in the test box in accordance with the manufacturer's instructions.

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Cover the entire internal surface of the box with sheet floor covering of the thickness which the floor

gully manufacturer states is the thickness for which the floor gully is designed. If the floor gully is

designed for a number of different thicknesses of sheet floor covering, it may be necessary to carry out

several tests. When applying the covering the instructions of the sheet floor covering manufacturer are

to be followed.

A moisture indicator is fitted to the bottom of the box at the opening where the floor gully is placed.

Admit water to the floor gully via the floor covering and grating as shown in Figure 4.

Supply water as follows:
1) (0,5 ± 0,05) l/s of hot water at (60 ± 2) °C for (60 ± 2) s;
2) pause for (60 ± 2) s;
3) (0,5 ± 0,05) l/s of cold water at (15 ± 10) °C for (60 ± 2) s;
4) pause for (60 ± 2) s.
Repeat this cycle 1 500 times (100 h).

During the test the outlet of the floor gully shall be closed when water is being supplied, and open

during pauses. Water will back up by approximately 80 mm in the box.

The outlet of the floor gully shall be connected to a pipe of 1 m length of the same DN as the outlet, laid

at a gradient of (1,5 ± 0,1) % to the horizontal.
Dimensions in millimetres
Key
1 hot and cold water supply for testing the floor gully
2 hot and cold water supply for testing sheet floor covering connection
3 outlet

Figure 4 — Test box for temperature cycling and for testing floor gullies for use with sheet floor

coverings
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4.9 Tightness
4.9.1 Odour-tightness
4.9.1.1 Requirements
The pressure shall not drop below 180 Pa over a period of at least 15 min.
4.9.1.2 Test method

Before conducting the test, dismantle and then reassemble the floor gully. Check that all parts are

correctly fitted.
Use the same or a similar test arrangement as shown in Figure 5.

Ensure that the temperatures of the floor gully, the water in the water seal and the room shall not vary

by more than ± 2 °C during the test.

Connect the floor gully to an airtight pipe arrangement with a volume of approximately 2,0 l.

Fill the trap with water. Apply a positive pressure of 200 Pa through the outlet. When the pressure is

stable, close the valve.

Interrupt the test if the pressure has not stabilized within 2 min (test failed).

Verify leakage as the decrease in static pressure after at least 15 min.

Air pressure is applied by means of a handpump or similar device. The connection between the outlet

end, the pump and the tube, shall be as short as possible and the internal volume reduced as shown in

Figure 5. For pressure measurement an incline tube manometer, U-tube manometer or similar is used.

Dimensions in millimetres
Key
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