Chimneys - Accessories - Part 6: Access components - Requirements and test methods

This European Standard specifies the requirements and test methods for access components comprising a frame and a door or doors which provide access to the flue of a chimney for the purpose of inspection or cleaning.
Access components for higher nominal working temperature than 450 °C, positive pressure and wet applications are not covered by this standard.
The standard is limited to access components with a door opening area up to 0,27 m2.
Products not freely ventilated are excluded from this standard.
This standard also specifies the requirements for marking, manufacturers’ instruction, product information and evaluation of conformity.
Access components already tested together with system chimney products or other chimney components, e.g. flue liners, are not covered by this standard.

Abgasanlagen - Zubehörteile - Teil 6: Zugangsbauteile - Anforderungen und Prüfverfahren

Diese Europäische Norm legt die Anforderungen und Prüfverfahren für Reinigungsverschlüsse mit einem Rahmen und einer Klappe oder Klappen fest, um den Abgasweg zur Inspektion oder Reinigung zugänglich zu machen.
Reinigungsverschlüsse für Nennbetriebstemperaturen größer als 450 °C und für Überdruck- und feuchte Betriebsweise fallen nicht in den Anwendungsbereich dieser Norm.
Diese Norm ist auf Reinigungsverschlüsse mit einem Klappenquerschnitt von bis zu 0,27 m2 beschränkt.
Nicht frei belüftete Produkte sind von dieser Norm ausgeschlossen.
Sie legt außerdem die Anforderungen an die Kennzeichnung, Herstelleranweisungen, Produktinformationen und Bewertung und Überprüfung der Leistungsbeständigkeit fest.
Reinigungsverschlüsse, die bereits zusammen mit Produkten für System-Abgasanlagen oder mit anderen Bauteilen einer Abgasanlage geprüft worden sind, z. B. Innenrohre, fallen nicht in den Anwendungsbereich dieser Norm.

Conduits de cheminée - Accessoires - Partie 6 : Éléments d'accès - Exigences et méthodes d'essai

La présente Norme européenne spécifie les exigences et les méthodes d’essai pour les trappes d’accès comprenant un cadre et une ou plusieurs portes permettant d’accéder au  conduit de fumée en vue de son inspection ou de son nettoyage.
Les trappes d’accès pour une température nominale de fonctionnement supérieure à 450 °C, une pression positive et des installations en conditions humides ne sont pas traitées dans la présente norme.
Cette norme se limite aux trappes d’accès avec une surface d’ouverture de porte d’au maximum 0,27 m2.
Les produits qui ne sont pas ventilés librement sont exclus de la présente norme.
La présente norme spécifie également les exigences en matière de marquage, d'instructions du fabricant, d'informations produit et d'évaluation de la conformité.
Les trappes d’accès déjà soumises à essai en même temps que les composants de systèmes de conduits de fumée ou d’autres éléments de conduits de fumée, par exemple des conduits intérieurs, ne relèvent pas du domaine d’application de la présente norme.

Dimovodne naprave - Oprema - 6. del: Čistilne odprtine - Zahteve in preskusne metode

General Information

Status
Published
Public Enquiry End Date
29-Mar-2016
Publication Date
17-May-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
16-Apr-2020
Due Date
21-Jun-2020
Completion Date
18-May-2020

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SLOVENSKI STANDARD
SIST EN 16475-6:2020
01-junij-2020
Dimovodne naprave - Oprema - 6. del: Čistilne odprtine - Zahteve in preskusne
metode

Chimneys - Accessories - Part 6: Access components - Requirements and test methods

Abgasanlagen - Zubehörteile - Teil 6: Zugangsbauteile - Anforderungen und
Prüfverfahren
Conduits de cheminée - Accessoires - Partie 6 : Éléments d'accès - Exigences et
méthodes d'essai
Ta slovenski standard je istoveten z: EN 16475-6:2020
ICS:
91.060.40 Dimniki, jaški, kanali Chimneys, shafts, ducts
SIST EN 16475-6:2020 en,fr,de

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

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SIST EN 16475-6:2020
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SIST EN 16475-6:2020
EN 16475-6
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2020
EUROPÄISCHE NORM
ICS 91.060.40
English Version
Chimneys - Accessories - Part 6: Access components -
Requirements and test methods

Conduits de cheminée - Accessoires - Partie 6 : Abgasanlagen - Zubehörteile - Teil 6: Zugangsbauteile -

Éléments d'accès - Exigences et méthodes d'essai Anforderungen und Prüfverfahren
This European Standard was approved by CEN on 25 December 2019.

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. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists 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.
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. EN 16475-6:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 16475-6:2020
EN 16475-6:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 6

4 Product characteristics ................................................................................................................................. 6

4.1 General ................................................................................................................................................................ 6

4.2 Mechanical resistance and stability ......................................................................................................... 6

4.2.1 Freedom of movement of the door ........................................................................................................... 6

4.2.2 Impact resistance of the door ..................................................................................................................... 6

4.2.3 Inner door security ......................................................................................................................................... 6

4.3 Thermal performance ................................................................................................................................... 6

4.3.1 Reaction to fire ................................................................................................................................................. 6

4.3.2 Resistance to fire (internal to external) ................................................................................................. 7

4.4 Hygiene, health and environment ............................................................................................................. 7

4.4.1 Gas tightness ..................................................................................................................................................... 7

4.4.2 Condensate resistance ................................................................................................................................... 7

4.4.3 Corrosion resistance ...................................................................................................................................... 7

4.4.4 Dangerous substances ................................................................................................................................... 8

4.5 Thermal resistance ......................................................................................................................................... 8

4.6 Materials ............................................................................................................................................................. 8

4.6.1 Access components in contact with combustion products .............................................................. 8

4.6.2 Additional information on other materials of construction ............................................................ 8

4.6.3 Freeze/thaw resistance ................................................................................................................................ 8

4.7 Operational requirements ........................................................................................................................... 9

4.7.1 Handling ............................................................................................................................................................. 9

4.7.2 Angle of opening .............................................................................................................................................. 9

4.7.3 Closing mechanism ......................................................................................................................................... 9

4.7.4 Space for additional information .............................................................................................................. 9

5 Testing, assessment and sampling methods ......................................................................................... 9

5.1 Manufacturer's declaration for type test ................................................................................................ 9

5.2 Mechanical resistance and stability ......................................................................................................... 9

5.2.1 Free movement test ........................................................................................................................................ 9

5.2.2 Swing ball test ................................................................................................................................................ 10

5.3 Thermal performance tests ...................................................................................................................... 12

5.3.1 General ............................................................................................................................................................. 12

5.3.2 Test Assembly ................................................................................................................................................ 12

5.3.3 Test procedure .............................................................................................................................................. 14

5.4 Gas tightness .................................................................................................................................................. 14

5.4.1 Test assembly ................................................................................................................................................ 14

5.4.2 Test Procedure .............................................................................................................................................. 15

5.4.3 Test results ..................................................................................................................................................... 15

5.5 Test sequence ................................................................................................................................................ 15

6 Assessment and verification of constancy of performance – AVCP............................................ 15

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SIST EN 16475-6:2020
EN 16475-6:2020 (E)

6.1 General ............................................................................................................................................................. 15

6.2 Type testing .................................................................................................................................................... 16

6.2.1 General ............................................................................................................................................................. 16

6.2.2 Test samples, testing and compliance criteria ................................................................................... 16

6.2.3 Test reports .................................................................................................................................................... 17

6.2.4 Shared other party results ........................................................................................................................ 17

6.2.5 Cascading determination of the product type results ..................................................................... 18

6.3 Factory production control (FPC) ........................................................................................................... 19

6.3.1 General ............................................................................................................................................................. 19

6.3.2 Requirements ................................................................................................................................................. 20

6.3.3 Product specific requirements ................................................................................................................ 22

6.3.4 Initial inspection of factory and of FPC ................................................................................................. 22

6.3.5 Continuous surveillance of FPC ............................................................................................................... 23

6.3.6 Procedure for modifications ..................................................................................................................... 23

6.3.7 One-off components, pre-production products (e.g. prototypes) and components

produced in very low quantity ................................................................................................................. 23

7 Classification and designation ................................................................................................................. 24

7.1 General ............................................................................................................................................................. 24

7.2 Temperature classes and test temperature ........................................................................................ 25

7.3 Gas tightness class ........................................................................................................................................ 25

7.4 Condensate resistance class ..................................................................................................................... 25

7.5 Corrosion resistance.................................................................................................................................... 25

7.6 Soot fire resistance and distance to combustible material ........................................................... 25

8 Marking, labelling and packaging ........................................................................................................... 25

8.1 Access component ........................................................................................................................................ 25

8.2 Packaging ......................................................................................................................................................... 26

8.3 Product information – Manufacturer’s instructions ........................................................................ 26

Annex A (normative) Choice of size for type test and sampling ............................................................... 27

Annex B (normative) Sampling for factory productions control .............................................................. 28

B.1 Sampling plans ............................................................................................................................................... 28

B.2 Inspection levels and procedures ........................................................................................................... 28

Annex C (normative) Factory production control .......................................................................................... 30

C.1 General ............................................................................................................................................................. 30

C.2 Materials, including coatings .................................................................................................................... 30

C.3 Seals and sealants ......................................................................................................................................... 30

C.4 Manufacturing checks ................................................................................................................................. 30

Annex D (informative) Recommended test sequence .................................................................................. 31

Annex E (informative) Calculation of thermal resistance ........................................................................... 32

Bibliography ................................................................................................................................................................. 33

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SIST EN 16475-6:2020
EN 16475-6:2020 (E)
European foreword

This document (EN 16475-6:2020) has been prepared by Technical Committee CEN/TC 166

“Chimneys”, the secretariat of which is held by ASI.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by October 2020, and conflicting national standards shall

be withdrawn at the latest by January 2022.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document is a part of the EN 16475 standards series, Chimneys – Accessories:

— Part 1: Chimney silencers - Requirements and test methods [FprEN 16475-1];
— Part 2: Chimney fans - Requirements and test methods;

— Part 3: Draught regulators, standstill opening devices and combined secondary air devices -

Requirements and test methods;
— Part 4: Flue dampers - Requirements and test methods [prEN 16475-4];
— Part 6: Access components - Requirements and test methods (this document);
— Part 7: Rain caps - Requirements and test methods.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: 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 the

United Kingdom.
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SIST EN 16475-6:2020
EN 16475-6:2020 (E)
Introduction

The main purpose of access components is to provide access to the flue of dry, negative pressure

chimneys, e.g. to be inspected or cleaned.
1 Scope

This document specifies the requirements and test methods for access components comprising a frame

and a door or doors which provide access to the flue of a chimney for the purpose of inspection or

cleaning.

Access components for higher nominal working temperature than 450 °C, positive pressure and wet

applications are not covered by this standard.

The document is limited to access components with door opening dimensions with a maximum width of

450 mm and a maximum height of 600 mm.
Products not freely ventilated are excluded from this document.

This document also specifies the requirements for marking, manufacturers’ instruction, product

information and information on the AVCP (Assessment and Verification of Constancy of Performance).

Access components already tested together with system chimney products or other chimney

components, e.g. flue liners, are not covered by this document.
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 1443, Chimneys - General requirements
EN 1561, Founding - Grey cast irons
EN 1563, Founding - Spheroidal graphite cast irons

EN 1856-1, Chimneys - Requirements for metal chimneys - Part 1: System chimney products

EN 1857, Chimneys - Components - Concrete flue liners
EN 10088-1, Stainless steels - Part 1: List of stainless steels

EN 10131, Cold rolled uncoated and zinc or zinc-nickel electrolytically coated low carbon and high yield

strength steel flat products for cold forming - Tolerances on dimensions and shape

EN 13063-1, Chimneys - System chimneys with clay/ceramic flue liners – Part 1: Requirements and test

methods for sootfire resistance

EN 13216-1, Chimneys - Test methods for system chimneys - Part 1: General test methods

EN 13501-1, Fire classification of construction products and building elements – Part 1: Classification

using data from reaction to fire tests
EN 14297, Chimneys - Freeze-thaw resistance test method for chimney products
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SIST EN 16475-6:2020
EN 16475-6:2020 (E)

ISO 2859-1, Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by

acceptance quality limit (AQL) for lot-by-lot inspection
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 1443, EN 1856-1 and EN 1857,

and the following apply.

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

• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
access component

component comprising a frame and a door or doors installed in the chimney to provide access to the

flue for the purpose of inspection or cleaning
3.2
nominal dimension
dimension of the opening of the access component
4 Product characteristics
4.1 General
The access component shall fulfil the following requirements.
4.2 Mechanical resistance and stability
4.2.1 Freedom of movement of the door

When tested according to 5.2.1 the access component shall be able to move freely when opened and

closed 100 times before and 10 times after the thermal performance tests, and meet the requirement of

4.4.1.
4.2.2 Impact resistance of the door

When tested according to 5.2.2 the access component shall also be able to be opened and closed freely

before and after the thermal tests.
4.2.3 Inner door security

An access component with a separate inner door shall have means for preventing the inner door from

falling into the chimney. This criteria is fulfilled if the inner door is secured, e.g. to the access component

frame by a steel rope, or a bar.
4.3 Thermal performance
4.3.1 Reaction to fire

The reaction to fire for the access component shall be determined in accordance with EN 13501-1.

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SIST EN 16475-6:2020
EN 16475-6:2020 (E)
4.3.2 Resistance to fire (internal to external)
4.3.2.1 General

The minimum distance to combustible shall be declared from the front face of the access component

(distance xx in Figure 2) and to the side of an access component (distance yy in Figure 2) either

measured according to 5.3 or for freely ventilated access components as:
— xx ≥ 400 mm and yy ≥ 200 mm for chimneys designated “G”; or
— xx ≥ 200 mm and yy ≥ 100 mm for chimneys designated “O”; or
— xx ≥ 50 mm and yy ≥ 50 mm for chimneys designated ‘O’ and maximum T160.

The minimum distance to combustible material may be reduced to 50 % of the above values if a

radiation shield creating an air gap, made from non-combustible material, is installed between the

access component and the adjacent combustible materials.

NOTE The minimum distance to combustible materials only takes into account the fire protection and not

e.g. operational requirements.

Freely ventilated means that ventilation of the space around the access component is not enclosed by,

e.g. fitting it in a cupboard.

If tested according to 5.3 the temperature on the combustible material shall not exceed 85 °C during the

heat stress test and shall not exceed 100 °C during the sootfire test.

A multiple layer access component may only be designated G if the outer surface temperature does not

change by more than 10 % when the heat stress test is repeated after the sootfire test.

4.3.2.2 Heat stress

The access component shall be tested to the designated nominal working temperature in accordance

with 5.3.3.2 and the requirements of 4.2 and 4.4 shall be met.
4.3.2.3 Sootfire

The access component designated sootfire resistant shall be tested in accordance with 5.3.3.3 and the

requirements of 4.2 and 4.4 shall be met.
4.4 Hygiene, health and environment
4.4.1 Gas tightness

When an access component is tested according to the test method described in 5.4 both before and after

-1. −1

the thermal performance tests, the leakage rate shall not be greater than 1,5 l·s m of joint length at a

test pressure of 40 Pa and shall be measured on the largest door size in a manufacturer’s range suitable

for a chimney of 200 mm diameter or equivalent area.

NOTE The parameter N1 or N of the chimney is not changed by the installation of such an access component.

4.4.2 Condensate resistance
Access components to this standard shall be designated ‘Dry’.
4.4.3 Corrosion resistance

Access components having materials to this standard (see 4.6.1) shall be designated with the corrosion

class 3 in accordance with EN 1443.
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SIST EN 16475-6:2020
EN 16475-6:2020 (E)
4.4.4 Dangerous substances

National regulations on dangerous substances may require verification and declaration on release, and

sometimes content, when construction products covered by this standard are placed on those markets.

In the absence of European harmonized test methods, verification and declaration on release/content

should be done taking into account national provisions in the place of use.

NOTE An informative database covering European and national provisions on dangerous substances is

available at the Construction website on EUROPA accessed through:
http://ec.europa.eu/enterprise/construction/cpd-ds/.
4.5 Thermal resistance

The outer door of the access component shall have a minimum thermal resistance of 0,05 m · K/W.

This is deemed to be fulfilled for concrete with a wall thickness of 60 mm and for metal with insulation

(of maximum thermal conductivity of 0,1 W/(mK) of at least 10 mm thickness.

The thermal resistance of an access component may be calculated using the method in Annex E.

4.6 Materials
4.6.1 Access components in contact with combustion products

The part of the access component, multi-layer or not, in contact with the products of combustion shall

have a minimum material specification of one of the following:
a) cast iron to EN 1561 or EN 1563: minimum thickness 4 mm;
b) zinc coated mild steels to EN 10131: minimum thickness 1,25 mm;

c) stainless steel: minimum material number according to EN 10088-1 of 1.4301 or higher number ,

minimum thickness 0,6 mm;

d) concrete: minimum density 1 700 kg/m , thickness shall be selected to correspond to a maximum

overall weight of 6,5 kg;
e) clay as specified in EN 13063-1.
4.6.2 Additional information on other materials of construction

Other materials used in access components shall not show any deformation, permanent or temporary,

when the relevant material of the access component is tested in accordance with 5.3 that will affect the

performance of the access component.
4.6.3 Freeze/thaw resistance
Access components of metal construction are deemed to be freeze/thaw resistant.

Access components of concrete material are deemed to be freeze/thaw resistant when they satisfied the

requirements in accordance with EN 14297.

A stainless material type of a higher number means any steel according to the material list of EN 1856-2.

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SIST EN 16475-6:2020
EN 16475-6:2020 (E)
4.7 Operational requirements
4.7.1 Handling
An access component shall have a facility to handle the openable part.

The access component shall have no sharp edges that can cause injury when handled, or damage

cleaning or inspection tools.
4.7.2 Angle of opening
A hinged door shall open at least to an angle of 140°, or be removable.
4.7.3 Closing mechanism

A door shall have the operating part of the closing mechanism consisting of either:

— a square spigot of (7 ± 0,1) mm x (7 ± 0,1) mm cross-section, with a length of at least 6,5 mm

operating a latch mechanism;
— in a 18 mm diameter circular recess, at least 6,5 mm deep;
— a lever operating a latch mechanism;

— close under its own weight e.g. for concrete access doors, by fitting into a recess.

4.7.4 Space for additional information

If it is required, the door of the access component shall have a space of 80 mm x 170 mm for additional

information to be added in particular where an access component needs additional information, e.g. in

terms of which chimney it serves in a property in a multiple apartment block.
5 Testing, assessment and sampling methods
5.1 Manufacturer's declaration for type test

The manufacturer shall provide the relevant information in Clause 8 and, in addition, shall declare, for

the access component:
a) drawings including declared nominal dimensions,
b) Material types for the component parts, and their minimum thicknesses,
c) weight of product,
d) method of fixing.
5.2 Mechanical resistance and stability
5.2.1 Free movement test
5.2.1.1 Test assembly

Mount the access component on the test assembly of 5.2.2.1 according to the manufacturer’s

instructions.
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SIST EN 16475-6:2020
EN 16475-6:2020 (E)
5.2.1.2 Test procedure
Check if a hinged door opens to a minimum angle of 140°.
Subject the access component to the gas tightness test of 5.4.
Open and close the access component door 100 times.

Record whether the door opens and closes freely and record whether the hinged door opens to a

minimum angle of 140°.Subject the access component to the thermal test of 5.3 appropriate to the

access component designation.
Open and close the access component door 10 times.

Record whether the door opens and closes freely and record whether the hinged door opens to a

minimum angle of 140°.
Subject the access component to the gas tightness test of 5.4.
5.2.1.3 Test Results

Record whether the access component door opens and closes freely, and the leakage from the gas

tightness test.
5.2.2 Swing
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dimovodne naprave - Oprema - 6. del: Sestavni deli za dostop - Zahteve in preskusne metodeAbgasanlagen - Zubehörteile - Teil 6: Reinigungsverschlüsse - Anforderungen und PrüfmethodenCheminées - Accessoires - Partie 6 : Éléments d'accès - Exigences et méthodes d'essaiChimneys - Accessories - Part 6: Access components - Requirements and test methods91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:Ta slovenski standard je istoveten z:prEN 16475-6oSIST prEN 16475-6:2016en,fr,de01-marec-2016oSIST prEN 16475-6:2016SLOVENSKI

STANDARD
oSIST prEN 16475-6:2016
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
DRAFT prEN 16475-6
January
t r s x ICS
{ sä r x rä v r English Version
Chimneys æ Accessories æ Part

xã Access components æ Requirements and test methods Cheminées æ Accessoires æ Partie

x ã Éléments d 5accès æ Exigences et méthodes d 5essai
Abgasanlagen æ Zubehörteile æ Teil

xã Reinigungsverschlüsse æ Anforderungen und Prüfmethoden This draft European Standard is submitted to CEN members for enquiryä It has been drawn up by the Technical Committee

If this draft becomes a European Standardá CEN members are bounwhich stipulate the conditions for giving this European Standard the status of a national standard without any alterationä

This draft European Standard was established by CEN in three ofer language made by translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä

Recipients of this draft are invited to submitá with their commentsá notification of any relevant patent rights of which they are aware and to provide supporting documentationä

Warning ã This document is not a European Standardä It is distributed for review and commentsä It is subject to change without notice and shall not be referred to as a European Standardä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels

t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä prEN

s x v y wæ xã t r s x EoSIST prEN 16475-6:2016
prEN 16475-6:2016 (E) 2 Contents Page

European foreword ....................................................................................................................................................... 4 Introduction .................................................................................................................................................................... 5 1 Scope .................................................................................................................................................................... 6 2 Normative references .................................................................................................................................... 6 3 Terms and definitions ................................................................................................................................... 6 4 Product characteristics ................................................................................................................................. 7 4.1 General ................................................................................................................................................................ 7 4.2 Mechanical resistance and stability ......................................................................................................... 7 4.2.1 Freedom of movement of the door ........................................................................................................... 7 4.2.2 Impact resistance of the door ..................................................................................................................... 7 4.2.3 Inner door security ......................................................................................................................................... 7 4.3 Thermal performance ................................................................................................................................... 7 4.3.1 Reaction to fire ................................................................................................................................................. 7 4.3.2 Resistance to fire (internal to external) ................................................................................................. 7 4.4 Hygiene, health and environment ............................................................................................................. 8 4.4.1 Gas tightness ..................................................................................................................................................... 8 4.4.2 Condensate resistance ................................................................................................................................... 8 4.4.3 Corrosion resistance ...................................................................................................................................... 8 4.4.4 Dangerous substances ................................................................................................................................... 8 4.5 Thermal resistance ......................................................................................................................................... 8 4.6 Materials ............................................................................................................................................................. 9 4.6.1 Access components in contact with combustion products .............................................................. 9 4.6.2 Additional information on other materials of construction ............................................................ 9 4.6.3 Freeze/thaw resistance ................................................................................................................................ 9 4.7 Operational requirements ........................................................................................................................... 9 4.7.1 Handling ............................................................................................................................................................. 9 4.7.2 Angle of opening .............................................................................................................................................. 9 4.7.3 Closing mechanism ......................................................................................................................................... 9 4.7.4 Space for additional information ........................................................................................................... 10 5 Testing, assessment and sampling methods ...................................................................................... 10 5.1 Manufacturer's declaration for type test ............................................................................................. 10 5.2 Mechanical resistance and stability ...................................................................................................... 10 5.2.1 Free movement test ..................................................................................................................................... 10 5.2.2 Swing ball test ................................................................................................................................................ 10 5.3 Thermal performance tests ...................................................................................................................... 12 5.3.1 General ............................................................................................................................................................. 12 5.3.2 Test Assembly ................................................................................................................................................ 12 5.3.3 Test procedure .............................................................................................................................................. 13 5.4 Gas tightness .................................................................................................................................................. 14 5.4.1 Test assembly ................................................................................................................................................ 14 5.4.2 Test Procedure .............................................................................................................................................. 15 5.4.3 Test results ..................................................................................................................................................... 15 6 Assessment and verification of constancy of performance – AVCP............................................ 15 6.1 General ............................................................................................................................................................. 15 oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 3 6.2 Type testing .................................................................................................................................................... 15 6.2.1 General ............................................................................................................................................................. 15 6.2.2 Test samples, testing and compliance criteria ................................................................................... 16 6.2.3 Test reports .................................................................................................................................................... 17 6.2.4 Shared other party results ........................................................................................................................ 17 6.2.5 Cascading determination of the product type results ..................................................................... 17 6.3 Factory production control (FPC) ........................................................................................................... 18 6.3.1 General ............................................................................................................................................................. 18 6.3.2 Requirements ................................................................................................................................................. 19 6.3.3 Product specific requirements ................................................................................................................ 21 6.3.4 Initial inspection of factory and of FPC ................................................................................................. 22 6.3.5 Continuous surveillance of FPC ............................................................................................................... 22 6.3.6 Procedure for modifications ..................................................................................................................... 22 6.3.7 One-off components, pre-production products (e.g. prototypes) and components produced in very low quantity ................................................................................................................. 23 7 Classification and designation ................................................................................................................. 23 7.1 General ............................................................................................................................................................. 23 7.2 Temperature classes and test temperature ........................................................................................ 24 7.3 Gas tightness class ........................................................................................................................................ 24 7.4 Condensate resistance class ..................................................................................................................... 25 7.5 Corrosion resistance.................................................................................................................................... 25 7.6 Soot fire resistance and distance to combustible material ........................................................... 25 8 Marking, labelling and packaging ........................................................................................................... 25 8.1 Access component ........................................................................................................................................ 25 8.2 Packaging ......................................................................................................................................................... 25 8.3 Product information – Manufacturer’s intructions .......................................................................... 25 Annex A (normative)

Choice of size for type test and sampling ................................................................. 27 Annex B (informative)

Sampling for factory productions control ............................................................. 28 B.1 Sampling plans ............................................................................................................................................... 28 B.2 Inspection levels and procedures ........................................................................................................... 28 Annex C (normative)

Factory production control............................................................................................ 30 C.1 General ............................................................................................................................................................. 30 C.2 Materials, including coatings .................................................................................................................... 30 C.3 Seals and sealants ......................................................................................................................................... 30 C.4 Manufacturing checks ................................................................................................................................. 30 Annex D (informative)

Recommended test sequence .................................................................................... 31 Annex E (informative)

Calculation of thermal resistance ............................................................................. 32 Annex ZA (informative)

Relationship of this European Standard with Regulation (EU) No. 305/2011 ................................................................................................................................................. 33

oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 4 European foreword This document (prEN 16475-6:2016) has been prepared by Technical Committee CEN/TC 166 “Chimneys”, the secretariat of which is held by ASI. This document is currently submitted to the CEN Enquiry. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA which is an integral part of this document. This European Standard forms a part of the series of standards for chimney accessories: — Part 1: Silencers — Part 2: Chimney fans — Part 3: Draught regulators, standstill opening devices and combined secondary air devices — Part 4: Flue dampers — Part 5: Explosion/implosion relief devices — Part 6: Access components (this part) — Part 7: Rain caps oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 5 Introduction The main purpose of access components is to allow the chimney to be inspected and cleaned. It may be possible to utilize the access component for measurement purposes. oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 6 1 Scope This European Standard specifies the requirements and test methods for access components comprising a frame and a door or doors which provide access to the flue of a chimney for the purpose of inspection or cleaning. Access components for higher nominal working temperature than 450 °C, positive pressure and wet applications are not covered by this standard. The standard is limited to access components with a door opening area up to 0,27 m2. Products not freely ventilated are excluded from this standard. This standard also specifies the requirements for marking, manufacturers’ instruction, product information and evaluation of conformity. Access components already tested together with system chimney products or other chimney components, e.g. flue liners, are not covered by this standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1443, Chimneys - General requirements. EN 1561, Founding - Grey cast irons EN 1563, Founding - Spheroidal graphite cast irons EN 1856-1, Chimneys - Requirements for metal chimneys - Part 1: System chimney products EN 1857, Chimneys - Components - Concrete flue liners EN 10088-1, Stainless steels - Part 1: List of stainless steels EN 10131, Cold rolled uncoated and zinc or zinc-nickel electrolytically coated low carbon and high yield strength steel flat products for cold forming - Tolerances on dimensions and shape EN 13063-1, Chimneys - System chimneys with clay/ceramic flue liners - Part 1: Requirements and test methods for sootfire resistance EN 13216-1, Chimneys - Test methods for system chimneys - Part 1: General test methods EN 14297, Chimneys - Freeze-thaw resistance test method for chimney products 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1443, EN 1856-1 and EN 1857, and the following apply. 3.1 access component component comprising a frame and a door or doors installed in the chimney to provide access to the flue for the purpose of inspection or cleaning oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 7 3.2 nominal dimensions dimensions of the opening of the access component 4 Product characteristics 4.1 General The access component shall fulfill the following requirements. 4.2 Mechanical resistance and stability 4.2.1 Freedom of movement of the door When tested according to 5.2.1 the access component shall be able to move freely when opened and closed 100 times before and 10 times after the thermal tests, and meet the requirement of 4.4.1. 4.2.2 Impact resistance of the door When tested according to 5.2.2 the access component shall also be able to be opened and closed freely before and after the thermal tests. 4.2.3 Inner door security An access component with a separate inner door shall have means for preventing the inner door from falling into the chimney. This criteria is fulfilled if the inner door is secured, e.g. to the access component frame by a steel rope, or a bar. 4.3 Thermal performance 4.3.1 Reaction to fire As the fire reaction is not relevant for access components, no declaration is necessary. 4.3.2 Resistance to fire (internal to external) 4.3.2.1 General The manufacturer shall declare that freely ventilated access component for chimneys designated "G" the minimum distance to combustible material without thermal testing shall be 400 mm from the front face of the access component (distance xx in Figure 2). The minimum distance to combustible material to the side of an access component (distance yy in Figure 2) shall be 200 mm. For chimneys designated "O" the distance from the access component from the front face of the access component can be reduced to minimum 200 mm. The minimum distance to combustible material to the side of an access component shall be 100 mm. The minimum distance to combustible material can be reduced to 50 % of the above values if a radiation shield creating an air gap, made from non-combustible material, is installed between the access component and the adjacent combustible materials. Access components for chimneys designated ‘O’ and maximum T160 the distance from the front or the side may be minimum 50 mm. Freely ventilated means that ventilation of the space around the access component is not enclosed by, e.g. fitting it in a cupboard. The declared distance to combustible material of the access component (see distances xx, and yy in Figure 2) shall be not less than the above distances or otherwise confirmed by testing in accordance with 5.3. oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 8 If tested according to 5.3 the temperature on the combustible material shall not exceed 85 °C during the heat stress test and shall not exceed 100 °C during the sootfire test. A multiple layer access component may only be designated G if the outer surface temperature does not change by more than 10 % when the heat stress test is repeated after the sootfire test. 4.3.2.2 Heat stress The access component shall be tested to the designated nominal working temperature in accordance with 5.3.3.2 and the requirements of 4.2 and 4.4 shall be met. 4.3.2.3 Sootfire The access component designated sootfire resistant shall be tested in accordance with 5.3.3.3 and the requirements of 4.2 and 4.4 shall be met. 4.4 Hygiene, health and environment 4.4.1 Gas tightness When an access component is tested according to the test method described in 5.4 both before and after the thermal performance tests, the leakage rate shall not be greater than 1,0 l.s-1.m-1 of joint length at a test pressure of 20 Pa and shall be measured on the largest door size in a manufacturer’s range suitable for a chimney of 200 mm diameter or equivalent area. NOTE The parameter N1 or N2 of the chimney is not changed by the installation of such an access component. 4.4.2 Condensate resistance Access components to this standard shall be designated ‘Dry’. 4.4.3 Corrosion resistance Access components having materials to this standard (see 4.6.1) shall be designated with the corrosion class 3. 4.4.4 Dangerous substances National regulations on dangerous substances may require verification and declaration on release, and sometimes content, when construction products covered by this standard are placed on those markets. In the absence of European harmonized test methods, verification and declaration on release/content should be done taking into account national provisions in the place of use. NOTE An informative database covering European and national provisions on dangerous substances is available at the Construction web site on EUROPA accessed through: http://ec.europa.eu/enterprise/construction/cpd-ds/. 4.5 Thermal resistance The outer door of the access component shall have a minimum thermal resistance of 0,05 m2 ·K/W. This is deemed to be fulfilled for concrete with a wall thickness of X mm and for metal with insulation of at least 1 cm thickness. The thermal resistance of an access component may be calculated using the method in Annex E. oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 9 4.6 Materials 4.6.1 Access components in contact with combustion products The part of the access component, multi-layer or not, in contact with the products of combustion shall have a minimum material specification of one of the following: — cast iron to EN 1561 or EN 1563: minimum thickness 4 mm; — zinc coated mild steels to EN 10131: minimum thickness 1,25 mm; — stainless steel: minimum material number according to EN 10088-1 of 1.4301 or higher number1), minimum thickness 0,6 mm; — concrete: minimum density 1 700 kg/m3, thickness to give maximum overall weight of 6,5 kg; — clay as specified in EN 13063-1. 4.6.2 Additional information on other materials of construction Other materials used in access components shall not show any deformation, permanent or temporary, when the relevant material of the access component is tested in accordance with 5.3 that will affect the performance of the access component. 4.6.3 Freeze/thaw resistance Access components of metal construction are deemed to be freeze/thaw resistant. Access components of concrete material are deemed to be freeze/thaw resistant when tested in accordance with EN 14297. 4.7 Operational requirements 4.7.1 Handling An access component shall have a facility to handle the openable part. The access component shall have no sharp edges that can cause injury when handled, or damage cleaning or inspection tools. 4.7.2 Angle of opening A hinged door shall open at least to an angle of 140°, or be removable. 4.7.3 Closing mechanism A hinged door shall have the operating part of the closing mechanism consisting of either: — A square spigot of (7 ± 0,1) mm x (7 ± 0,1) mm cross-section, with a length of at least 6,5 mm operating a latch mechanism. — In an 18 mm diameter circular recess, at least 6,5 mm deep. — A lever operating a latch mechanism. NOTE A concrete access door may close under its own weight, e.g. by fitting into a recess.

1) A stainless material type of a higher number means any steel according to the material list of EN 1856-2:2009. oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 10 4.7.4 Space for additional information If it is required, the door of the access component shall have a space of 80 mm x 170 mm for additional information to be added in particular where an access component needs additional information, e.g. in terms of which chimney it serves in a property in a multiple apartment block. 5 Testing, assessment and sampling methods 5.1 Manufacturer's declaration for type test The manufacturer shall provide the relevant information in Clause 8 and, in addition, shall declare, for the access component: a) drawings including declared nominal dimensions, b) Material types for the component parts, and their minimum thicknesses, c) weight of product, d) method of fixing. 5.2 Mechanical resistance and stability 5.2.1 Free movement test 5.2.1.1 Test assembly Mount the access component on the test assembly of 5.2.2.1 according to the manufacturer’s instructions. 5.2.1.2 Test procedure Open and close the access component door 100 times. Record whether the door opens and closes freely. Subject the access component to the thermal test of 5.3 appropriate to the access component designation. Open and close the access component door 10 times. Subject the access component to the gas tightness test of 5.4. 5.2.1.3 Test Results Record whether the access component door opens and closes freely, and the leakage from the gas tightness test. 5.2.2 Swing ball test 5.2.2.1 Test assembly Construct a test assembly according to Figure 1 with the access component installed according to the manufacturer’s instructions, using gypsum for easy dismantling. Construct a pendulum with a steel ball of (14,85 ± 0,05) kg attached to a 1,7 m long rope and the pivot point 200 mm from the access door, all with a tolerance of 05−+ %. oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 11 Dimensions in millimeters

Key 1 access component 2 pivot point 3 opening section 4 insulation layer 5 outer wall 6 pendulum 7 weight (14,85 ± 0,05) kg 8 support frame Figure 1 — Example of free movement and swing ball test arrangement oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 12 5.2.2.2 Test procedure Move the ball away from the test assembly by 312 mm. Release the ball to strike the access component firstly at the top, then in the middle and again at the bottom. Check that the access component still opens and closes freely. 5.2.2.3 Test results Record any deterioration of the free movement of the access door. 5.3 Thermal performance tests 5.3.1

General For thermal testing assemble the access component according to Figure 2. 5.3.2 Test Assembly 5.3.2.1 General Construct a test assembly according to Figure 2 with the access component installed on a ‘section of chimney according to the manufacturer’s instructions. Attach a hot gas connecting pipe (see 5.3.2.2), and a hot gas generator (see 5.3.2.3) to the box. Dimensions in millimeters

Key 1 access door 5 hot gas exhaust hood 2 hot gas generator xx front distance to combustible material 3 hot gas connecting pipe yy side distance to combustible material 4 hot gas measurement position D diameter of the hot gas connecting pipe Figure 2 — Example of test arrangement for thermal performance tests oSIST prEN 16475-6:2016

prEN 16475-6:2016 (E) 13 5.3.2.2 Hot gas connecting pipe The hot gas connecting pipe shall be in accordance with EN 13216-1. 5.3.2.3

Hot gas generator The hot gas generator shall be in accordance with EN 13216-1. 5.3.2.4 Measuring parameters The measurement parameters for the hot gas shall be in accordance with EN 13216-1. Measure the temperature of the test assembly at the point(s) to be defined, using thermocouples with accuracy according to EN 13216-1 for surface temperature measurements. 5.3.3 Test procedure 5.3.3.1 General The mechanical resistance and stability tests of 5.2.1 and 5

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