Bsi bs en 29048 1991 (1999) iso 9048 1987

00249447 PDF BRITISH STANDARD BS EN 29048 1991 ISO 9048 1987 Building construction — Jointing products — Determination of extrudability of sealants using standardized apparatus This European Standard[.]

BRITISH STANDARD BS EN

29048:1991 ISO 9048:1987

Building

construction —

Jointing products —

Determination of

extrudability of

sealants using

standardized apparatus

This European Standard EN 29048:1990 has the status of a

British Standard

This British Standard was

published under the authority

of the Standards Board and

comes into effect on

30 August 1991

© BSI 12-1999

The following BSI references

relate to the work on this

standard:

Committee reference ECB/3

Draft for comment 86/13677 DC

ISBN 0 580 19930 4

Cooperating organizations

The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards

organizations of the following Western European countries

Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y

France Association française de normalisation Germany Deutsches Institut für Normung e.V

Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland

Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portuguès da Qualidade Spain Asociación Española de Normalización y Certificación Sweden Standardiseringskommissionen i Sverige

Switzerland Association suisse de normalisation United Kingdom British Standards Institution

Amendments issued since publication

Amd No Date Comments

BS EN 29048:1991

Contents

Page

National appendix NA (informative) Inside back cover National appendix NB (informative) Inside back cover

ii © BSI 12-1999

National foreword

This British Standard has been prepared under the direction of the Elements and Components (of Diverse Materials) for Buildings Standards Policy Committee It

is the English language version of EN 29048:1990 “Building construction —

Jointing products — Determination of extrudability of sealants using standardized apparatus” published by the European Committee for

Standardization (CEN) EN 29048:1990 is identical with ISO 9048:1987 published by the International Organization for Standardization (ISO)

The standard was developed by Sub-committee ISO/TC 59/SC 8, Jointing Products, of Technical Committee ISO/TC 59, Building Construction

National appendices are designated “informative”

A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover

This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover

EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN 29048

November 1990

UDC 691.587:620.179.5

Key words: Buildings, Joints, Sealing materials, Putty, Tests, Determination, Extrudability

English version

Building construction — Jointing products —

Determination of extrudability of sealants using

standardized apparatus

(ISO 9048:1987)

Construction immobilière — Produits pour

joints — Détermination de l’extrudabilité des

mastics au moyen d’un appareil normalisé

(ISO 9048:1987)

Hochbau — Fugendichtstoffe — Bestimmung der Verarbeitbarkeit von Dichtstoffen

(ISO 9048:1987)

This European Standard was accepted by CEN on 21 May 1990 and is identical

to the ISO standard as referred to

CEN members are bound to comply with the requirements of the

CEN/CENELEC Common Rules 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 Central Secretariat 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 CEN

Central Secretariat has the same status as the official versions

CEN members are the national standards organizations of Austria, Belgium,

Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,

Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and

United Kingdom

CEN

European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung

Central Secretariat: rue de Stassart 36, B-1050 Brussels

© CEN 1990 Copyright reserved to all CEN members

Ref No EN 29048:1990 E

© BSI 12-1999

2

Brief history

According the proposal of CEN/CS, the Technical

Board decided in accordance with the Common

CEN/CENELEC Rules, clause 4.2.6, to submit the

International Standard

ISO 9048:1987 “Building construction — Jointing

products — Determination of extrudability of

sealants using standardized apparatus”

to the Formal Vote

In accordance with the Common CEN/CENELEC

Rules, the following countries are bound to

implement this standard:

Austria, Belgium, Denmark, Finland, France,

Germany, Greece, Iceland, Ireland, Italy,

Luxembourg, Netherlands, Norway, Portugal,

Spain, Sweden, Switzerland and United Kingdom

Statement

The text of the International Standard ISO 9048,

edition 1987 was approved by CEN as a European

Standard without any modification

Contents

Page

1 Scope and field of application 3

Figure 2 — Parts of extrusion device 5

EN 29048:1990

1 Scope and field of application

This International Standard specifies a method for

the determination of extrudability of one-component

or multi-component sealants regardless of the kind

of packages in which they are supplied or from

which they are applied to the joint in buildings

NOTE A method for the determination of the extrudability of

one-component sealants from the packages in which they are

supplied is given in ISO 8394.

2 References

ISO 228-1, Pipe threads where pressure-tight joints

are not made on the threads — Part 1: Designation,

dimensions and tolerances

ISO 2009, Slotted countersunk head screws

(common head style) — Product grade A

ISO 2338, Parallel pins, unhardened

ISO 6927, Building construction — Jointing

products — Sealants — Vocabulary

3 Definitions

For the purposes of this International Standard, the

definitions given in ISO 6927 apply

4 Principle

Extrusion of a defined volume of sealant from a

standardized device under defined conditions by

means of compressed air Reporting of the

extrudability as extruded volume per time unit, in

the case of multi-component sealants by plotting a

diagram

5 Apparatus

5.1 Extrusion device, for pneumatic operation

according to Figure 1 and Figure 2 for a test volume

of approximately 250 or 400 ml and with an orifice

diameter of 2, 4, 6 or 10 mm as stipulated in

relevant requirement standards or as agreed

5.2 Air compressor, with valve and pressure gauge

to maintain the supply of compressed air

at 200 ± 2,5 kPa and with an appropriate

connection to the extrusion device

5.3 Graduated glass cylinder, of 1 000 ml capacity.

5.4 Stop watch, calibrated in seconds.

6 Conditioning

The sealant to be tested and the apparatus shall be

conditioned at 5 ± 2 °C and/or 23 ± 2 °C and

at (50 ± 5) % relative humidity for at least 8 h

7 Procedure

7.1 General

The test procedure shall be carried out at 23 ± 2 °C and at (50 ± 5) % relative humidity

Fit the piston and ring of the extrusion device (5.1)

together and insert in the cylinder with the ring towards the orifice Fill the cylinder with the sealant without producing any bubbles In the case

of multi-component sealant the filling shall be done immediately after the components have been mixed according to the requirements of the manufacturer Flush the surface of the sealant before the orifice cap, slide bar and orifice plate are put on the cylinder

Choose the cylinder volume and orifice diameter according to the stipulations of the relevant requirement standards or as agreed upon between the parties involved

Where a sealant which has been conditioned at more

than one of the temperatures stated in clause 6 is

tested, the same cylinder volume and orifice diameter shall be used

Set the filled extrusion device (5.1) under an air pressure of 200 ± 2,5 kPa (5.2) with the slide bar

closed and keep it constantly under this pressure during the whole test

Before starting measurement extrusion, extrude 2

or 3 cm of sealant to fill the orifice of the extrusion device

7.2 Testing of one-component sealants

Extrude all of the sealant in the extrusion

device (5.1) in one movement and measure the time

required Calculate the extrusion rate from the chosen test volume and the extrusion time in millilitres per minute

7.3 Testing of multi-component sealants

Place 500 ml of deionized or distilled water in the

graduated glass cylinder (5.3) and read the level of

water Then extrude approximately 50 ml of the

sealant from the extrusion device (5.1) into the

water and record the time required Read and record the level of water for its exact volume The first extrusion shall be performed 15 min after beginning

of the mixing of the components

Repeat the procedure at least three times, that is, extruding approximately 50 ml each time and recording the time required and the exact volume Using the time required for each volume of sealant

at suitable intervals of time, develop a volume/time graph so that a curve can be plotted which shows the extruded volume per minute at any time within the application life of the sealant as specified by the manufacturer

4 © BSI 12-1999

8 Test report

The test report shall include the following

information:

a) reference to this International Standard;

b) name and type of sealant;

c) batch of sealant and age, if possible;

d) conditions of mixing and mixing device in the

case of multi-component sealants;

e) volume of sealant tested (cylinder volume) and

orifice diameter used;

f) extrusion rate in millilitres per minute, in the case of one-component sealants for each

conditioning temperature applied;

g) diagram of volume/time curve and average extrusion rate in millilitres per minute, in the case of multi-component sealants for each conditioning temperature applied;

h) any deviation from the specified test conditions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1 1 1 1 1 1 1 1 1 2 3 1 1 1

cylinder piston ring orifice cap slide bar

orifice plate, d = 2 mm orifice plate, d = 4 mm orifice plate, d = 6 mm orifice plate, d = 10 mm

countersunk head screw: ISO 2009 – M3 × 6 – 4,8 parallel pin: ISO 2338 – 6 × 8

coupling with pipe thread: ISO 228-1 – G 3/8 neoprene gasket, outer diameter 60 mm, material 25 mm × 2 mm

bottom cap

copper-zinc alloy copper-zinc alloy copper-zinc alloy copper-zinc alloy stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel copper-zinc alloy neoprene

copper-zinc alloy

a See Figure 2.

Figure 1 — Extrusion device

EN 29048:1990

Orifice plate, 6, 7, 8, 9 Specified tolerances

NOTE 1 all over except where otherwise stated.

NOTE 2 Parts 10 to 13 are not illustrated.

3

H7

10

H7

20

H8

20

e8

50

H7 +0,009

0

+0,015 0

+0,033 0

–0,04 –0,073

+0,025 0

Figure 2 — Parts of extrusion device

BS EN 29048:1991

© BSI 12-1999

National appendix NA (informative)

The United Kingdom participation in the preparation of this European Standard was entrusted by the Elements and Components (of Diverse Materials) for Buildings Standards Policy Committee (ECB/-) to Technical Committee ECB/3 upon which the following bodies were represented:

Aluminium Window Association

Association of Sealant Applicators

British Adhesives and Sealants Association

Building Employers Confederation

Department of the Environment (Building Research Establishment)

Department of the Environment (Property Services Agency)

Flat Glass Manufacturers’ Association

Glass and Glazing Federation

Institution of Civil Engineers

Refined Bitumen Association Ltd

Society of Architectural and Associated Technicians

Society of Chemical Industry

Water Services Association of England and Wales

National appendix NB (informative)

The British Standards corresponding to some of the International Standards referred to in the text are as follows:

International Standard British Standard

ISO 228-1:1982 BS 2779:1986 Specification for pipe threads for tubes and fittings where

pressure-tight joints are not made on the threads (metric dimensions)

(Technically equivalent) ISO 2009:1983 BS 4183:1967 Specification for machine screws and machine screw nuts Metric

series

(Technically equivalent) ISO 6927:1981 BS EN 26927:1991 Building construction — Jointing products — Sealants —

Vocabulary

(Identical)

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