EN 1094-1:2008

SLOVENSKI STANDARD
01-oktober-2008
1DGRPHãþD
SIST EN 1094-1:1998
SIST EN 1094-3:2003
SIST ENV 1094-7:1998
Toplotnoizolacijski ognjevzdržni izdelki - 1. del: Terminologija, klasifikacija in
metode za topne visokotemperaturne vlaknene izdelke
Insulating refractory products - Terminology, classification and methods of test for high
temperature insulation wool products
Feuerfeste Erzeugnisse für Wärmedämmzwecke - Teil 1: Terminologie, Klassifizierung
und Prüfverfahren für Erzeugnisse aus Hochtemperaturwolle zur Wärmedämmung
Produits réfractaires isolants - Terminologie, classification et méthodes d'essai pour
produits à base de laine isolante à haute température
Ta slovenski standard je istoveten z: EN 1094-1:2008
ICS:
81.080 Ognjevzdržni materiali Refractories
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 1094-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2008
ICS 81.080 Supersedes EN 1094-1:1997, EN 1094-3:2003, ENV
1094-7:1993
English Version
Insulating refractory products - Part 1: Terminology,
classification and methods of test for high temperature insulation
wool products
Produits réfractaires isolants - Partie 1 : Terminologie, Feuerfeste Erzeugnisse für Wärmedämmzwecke - Teil 1:
classification et méthodes d'essai pour produits à base de Terminologie, Klassifizierung und Prüfverfahren für
laine isolante à haute température Erzeugnisse aus Hochtemperaturwolle zur
Wärmedämmung
This European Standard was approved by CEN on 25 May 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1094-1:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Classification temperature.7
5 Number of test pieces .9
6 Preparation of test pieces.9
7 Test methods.9
8 Test report .20
Bibliography .21

Foreword
This document (EN 1094-1:2008) has been prepared by Technical Committee CEN/TC 187 “Refractory
products and materials”, the secretariat of which is held by BSI.
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 January 2009, and conflicting national standards shall be withdrawn at
the latest by January 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1094-1:1997, EN 1094-3:2003 and ENV 1094-7:1993.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

1 Scope
This European Standard defines terms for those refractory products and materials which are classed as high
temperature insulation wools (HTIW). It also establishes the classification of insulating refractory products
made from HTIW and specifies methods for determining the thickness, bulk density, resilience, permanent
linear change, tensile strength and moisture and organic matter content of HTIW products.
It applies to HTIW bulk wool, blankets, felts, mats, boards, pre-formed shapes and papers, with the exception
of products delivered in a wet state.
Further test procedures are in development and will be included once they have been ratified. These include a
3 point bend test for boards, a length weighted fibre diameter measurement technique by Scanning Electron
Microscope, shot content measurement (dry and wet methods) and thermal conductivity measurement. There
is a shot content method described in ISO 10635 and there is a thermal conductivity technique described in
ASTM C201.
2 Normative references
The following referenced documents are indispensable for the application 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 1094 (all parts), Insulating refractory products
EN ISO 7500-1, Metallic materials – Verification of static uniaxial testing machines – Part 1:
Tension/compression testing machines – Verification and calibration of the force-measuring system (ISO
7500-1:2004)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 General terms and definitions
3.1.1
high temperature insulation wool
HTIW
man-made mineral wool suitable for use as heat-insulating materials above a temperature of 600°C and
divided into amorphous alkaline earth silicate wools (AES), aluminosilicate wools (ASW) and the
polycrystalline wools (PCW) with a classification temperature greater than 1 000 °C
3.1.2
wool
non-directional agglomeration of fibres with varying diameter and length distributions
3.1.3
fibre
particles with a length to diameter proportion of L/D > 3:1
3.1.4
AES-wool
amorphous wools with a typical composition range as given in Table 1
Table 1 — Typical Composition range of AES-wool
Component Percentage by mass
CaO + MgO 18 to 43
SiO 50 to 82
Al O + TiO + ZrO < 6
2 3 2 2
Other oxides < 1
3.1.5
aluminosilicate wool
ASW
amorphous wools, subdivided into:
a) aluminosilicate wool (Al O + SiO ) with a composition range as given in Table 2; and
2 3 2
b) alumino zirconium silicate wool (Al O + ZrO + SiO ) with a composition range as given in Table 3
2 3 2 2
Table 2 — Typical Composition range of aluminosilicate wool
Component Percentage by mass
Al O 46 to 56
2 3
SiO 44 to 54
Other oxides < 1
Table 3 — Typical Composition range of alumino zirconium silicate wool
Component Percentage by mass
Al O < 37
2 3
SiO > 48
ZrO < 20
Other oxides < 1
3.1.6
polycrystalline wool
PCW
wool with a typical composition range as given in Table 4
Table 4 — Typical Composition range of polycrystalline wool
Component Percentage by mass
Al O 72 to 97
2 3
SiO 3 to 28
Other oxides < 0,1
3.1.7
resilience
ability of HTIW products to spring back after being compressed to 50 % of their initial thickness
3.1.8
tensile strength
apparent maximum tensile stress that the material can withstand
NOTE It is expressed in Pascals (Pa). It is given together with the bulk density determined by subclause 7.2
3.2 Materials and products made from high temperature insulation wool (HTIW)
3.2.1
bulk wool
wool in the state as produced before conversion into other products
NOTE 1 Bulk wool is available as:
a) wool with long fibres with or without finish (lubricant);
b) wool with chopped fibres with variable length due to their application.
NOTE 2 Lubricant is added to the fibres to keep them flexible for further processing the wool products. Typically, the
wool products are thermally treated after production to remove the lubricant.
3.2.2
mat
flexible, non-needled wool without further bonding agent
3.2.3
blanket
flexible, needled mat, free of binders, with nominally determined dimensions
NOTE The mat is processed with barbed felt needles. In consequence, the product becomes denser and stronger.
3.2.4
felt
flexible, non-needled product with further bonding agents
3.2.5
module
blanket formed into thick sections by needling, stacking or folding sheets, compressed to a higher density and
typically supplied with integral anchoring systems
3 3
NOTE Typically, the bulk density of modules is between 160 kg/m and 300 kg/m . Modules can be of a complex
shape.
3.2.6
paper
flexible insulating material formed on a paper-making machine
NOTE Typically, thin shaped HTIW products are kept together by an organic binder (e.g. latex).
3.2.7
board
rigid flat sheet, usually containing inorganic and/or organic binders, produced by a wet process fired or unfired
3.2.8
pre-formed product and shapes
rigid shape with the addition of inorganic and/or organic binders, fired or unfired
NOTE Depending on their production process pre-formed products are subdivided into:
a) vacuum shaped products;
b) mixed products wherein different types of HTIW but also refractory fillers are put together;
c) plastic shaped products;
d) laminated pre-formed products wherein boards, paper or felts are stuck together (on top of each other or
rolled);
e) die-cut products made of blankets, boards or paper.
3.2.9
yarn
bulk HTIW twisted into a continuous thread, with or without the addition of reinforcing filaments
3.2.10
rope
yarn twisted to a rope, with or without reinforcing
NOTE Ropes can be reinforced by glass or metal fibres.
3.2.11
cloth
yarn woven to cloth
3.2.12
mouldable/castable/mastic product
product used for moulding, casting or repairs.
NOTE Mouldable products of HTIW are, for example, added in different proportions to unshaped refractory products
as defined in EN 1402-1.
4 Classification temperature
The product is classified according to the temperature at which the shrinkage obtained by the permanent
linear change in dimensions test, as described in subclause 7.4, does not exceed a given value.
According to the nature of the product, the shrinkage value shall not exceed:
 2 % for boards and preformed shapes;
 4 % for blankets, felts, mats and papers.
The temperature shall be reported to the nearest 50°C, starting at 850°C and going up to 1 800°C in 50°C
increments.
NOTE Classification temperature does not imply that the product can be used continuously at this temperature. In
practice maximum continuous use temperature for amorphous HTIWs will typically be approximately 100°C to 150°C lower
than the classification temperature. Polycrystalline wool can usually be used up to its classification temperature. The
atmosphere, application (e.g. single use vs. extended) and contact with other substances should all be considered
carefully when selecting the type of high temperature insulation wool for a particular application.
Typical application temperatures are shown in Figure 1.
y
1800ºC
1500ºC
1200ºC
900ºC
600ºC
300ºC
x
Key
X Type of wool
Y Temperature °C
1 Polycrystalline wool
2 Alumino-Silicate and Alumino-Zirconium-Silicate Wool
3 Alkaline-Earth-Silicate Wool (AES)
4 Mineral wools (Glass and Rock wool)
NOTE The width of the polygon shows the proportion of a wool type used in the corresponding temperature range.
Figure 1 —Typical application temperatures of HTIW
5 Number of test pieces
The number of items to be tested shall be determined by agreement between the parties. The number of test
pieces per item shall be determined in accordance with Table 5.
6 Preparation of test pieces
When the material to be tested is in a roll form, any compressed material at the extreme ends shall be
excluded. A strip shall be cut perpendicular to the length across the full material width, of sufficient size for the
different tests planned.
From the strip, cut the required number of test pieces of required dimensions, using a template, a sharp knife,
a saw, or other method which will not damage the sample. Avoid excess pressure as this may crush the
produ
...