Ceramic tiles — Definitions, classification, characteristics and marking

ISO 13006:2012 defines terms and establishes classifications, characteristics and marking requirements for ceramic tiles of the best commercial quality (first quality). ISO 13006:2012 is not applicable to tiles made by other than normal processes of extrusion or dry pressing. It is not applicable to decorative accessories or trim, such as edges, corners, skirting, capping, coves, beads, steps, curved tiles and other accessory pieces or mosaics (i.e. any piece that can fit into an area of 49 cm2).

Carreaux et dalles céramiques — Définitions, classification, caractéristiques et marquage

General Information

Status
Withdrawn
Publication Date
04-Mar-2012
Withdrawal Date
04-Mar-2012
Technical Committee
Drafting Committee
Current Stage
9599 - Withdrawal of International Standard
Start Date
05-Sep-2018
Completion Date
05-Sep-2018
Ref Project

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INTERNATIONAL ISO
STANDARD 13006
Second edition
2012-03-01
Ceramic tiles — Definitions, classification,
characteristics and marking
Carreaux et dalles céramiques — Définitions, classification,
caractéristiques et marquage
Reference number
ISO 13006:2012(E)
ISO 2012
---------------------- Page: 1 ----------------------
ISO 13006:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s

member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 13006:2012(E)
Contents Page

Foreword ............................................................................................................................................................................iv

1 Scope ...................................................................................................................................................................... 1

2 Normative references ......................................................................................................................................... 1

3 Terms and definitions ......................................................................................................................................... 2

4 Classification ........................................................................................................................................................ 4

4.1 Basis of classification ........................................................................................................................................ 4

4.2 Methods of manufacture ................................................................................................................................... 4

4.3 Water absorption according to group ............................................................................................................ 4

5 Characteristics ..................................................................................................................................................... 5

6 Sampling and basis for acceptance ............................................................................................................... 5

7 Requirements ....................................................................................................................................................... 5

8 Marking and specifications ............................................................................................................................... 5

8.1 Marking ................................................................................................................................................................... 5

8.2 Product literature ................................................................................................................................................. 5

8.3 Specifications ....................................................................................................................................................... 5

9 Ordering ................................................................................................................................................................. 6

Annex A (normative) Extruded ceramic tiles with low water absorption 0,5 < E ≤ 3 % Group AI ............10

b b

Annex B (normative) Extruded ceramic tiles 3 % < E ≤ 6 % Group AIIa — Subgroup (Part) 1 ...................13

Annex C (normative) Extruded ceramic tiles 3 % < E ≤ 6 % Group AIIa — Subgroup (Part) 2 ...................16

Annex D (normative) Extruded ceramic tiles 6 % < E ≤ 10 % Group AIIb — Subgroup (Part) 1 ................19

Annex E (normative) Extruded ceramic tiles 6 % < E ≤ 10 % Group AII — Subgroup (Part) 2 .................22

b b

Annex F (normative) Extruded ceramic tiles E > 10 % Group AIII .....................................................................25

Annex G (normative) Dry-pressed ceramic tiles with low water absorption E ≤ 0,5 % Group BI ............28

b a

Annex H (normative) Dry-pressed ceramic tiles with low water absorption 0,5 % < E ≤ 3 %

Group BI .............................................................................................................................................................31

Annex I (informative) ........................................................................................................................................................34

Annex J (normative) Dry-pressed ceramic tiles 3 % < E ≤ 6 % Group BII ......................................................35

b a

Annex K (normative) Dry-pressed ceramic tiles 6 % < E ≤ 10 % Group BII ...................................................38

b b

Annex L (normative) Dry-pressed ceramic tiles E > 10 % Group BIII ...............................................................41

Annex M (normative) Extruded ceramic tiles with low water absorption E ≤ 0,5 % Group AI ..................44

b a

Annex N (informative) Classification of glazed tiles for floors according to their abrasion resistance ...47

Annex O (informative) ......................................................................................................................................................48

Annex P (informative) Test methods ...........................................................................................................................49

Annex Q (informative) ......................................................................................................................................................50

Annex R (informative) Symbols recommended for use .........................................................................................51

Bibliography .....................................................................................................................................................................52

© ISO 2012 – All rights reserved iii
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ISO 13006:2012(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International

Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

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

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

ISO 13006 was prepared by Technical Committee ISO/TC 189, Ceramic tile.

This second edition cancels and replaces the first edition (ISO 13006:1998), which has been technically revised.

iv © ISO 2012 – All rights reserved
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INTERNATIONAL STANDARD ISO 13006:2012(E)
Ceramic tiles — Definitions, classification, characteristics and
marking
1 Scope

This International Standard defines terms and establishes classifications, characteristics and marking

requirements for ceramic tiles of the best commercial quality (first quality). This International Standard is not

applicable to tiles made by other than normal processes of extrusion or dry pressing. It is not applicable to

decorative accessories or trim such as edges, corners, skirting, capping, coves, beads, steps, curved tiles and

other accessory pieces or mosaics (i.e. any piece that can fit into an area of 49 cm ).

NOTE ISO 10545 (all parts) describes the test procedures required to determine the product characteristics listed in

this International Standard. ISO 10545 is divided into 16 parts, each describing a specific test procedure or related matter.

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.
ISO 1006, Building construction — Modular coordination — Basic module
ISO 10545-1, Ceramic tiles — Part 1: Sampling and basis for acceptance

ISO 10545-2, Ceramic tiles — Part 2: Determination of dimensions and surface quality

ISO 10545-3, Ceramic tiles — Part 3: Determination of water absorption, apparent porosity, apparent relative

density and bulk density

ISO 10545-4, Ceramic tiles — Part 4: Determination of modulus of rupture and breaking strength

ISO 10545-5, Ceramic tiles — Part 5: Determination of impact resistance by measurement of coefficient of restitution

ISO 10545-6, Ceramic tiles — Part 6: Determination of resistance to deep abrasion for unglazed tiles

ISO 10545-7, Ceramic tiles — Part 7: Determination of resistance to surface abrasion for glazed tiles

ISO 10545-8, Ceramic tiles — Part 8: Determination of linear thermal expansion

ISO 10545-9, Ceramic tiles — Part 9: Determination of resistance to thermal shock

ISO 10545-10, Ceramic tiles — Part 10: Determination of moisture expansion

ISO 10545-11, Ceramic tiles — Part 11: Determination of crazing resistance for glazed tiles

ISO 10545-12, Ceramic tiles — Part 12: Determination of frost resistance
ISO 10545-13, Ceramic tiles — Part 13: Determination of chemical resistance
ISO 10545-14, Ceramic tiles — Part 14: Determination of resistance to stains

ISO 10545-15, Ceramic tiles — Part 15: Determination of lead and cadmium given off by glazed tiles

ISO 10545-16, Ceramic tiles — Part 16: Determination of small colour differences
© ISO 2012 – All rights reserved 1
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ISO 13006:2012(E)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 1006 and the following apply.

3.1
ceramic tile

thin slab made from clays and/or other inorganic raw materials, generally used as covering for floors and walls,

usually shaped by extruding (A) or pressing (B) at room temperature, but may be formed by other processes

(C), then dried and subsequently fired at temperatures sufficient to develop the required properties

NOTE Tiles may be glazed (GL) or unglazed (UGL); they are incombustible and are not affected by light.

3.2
porcelain tile

fully vitrified tile with water absorption coefficient less than or equal to a mass fraction of 0,5 %, belonging to

groups AI and BI
a a
3.3
glaze
vitrified covering that is impermeable
3.4
engobed surface
clay-based covering with a matt finish which may be permeable or impermeable
NOTE A tile with an engobed surface is regarded as an unglazed tile.
3.5
polished surface

surface of glazed and unglazed tile which has been given a glossy finish by mechanical polishing as the last

stage of manufacture
3.6
extruded tile

tile, whose body is shaped in the plastic state in an extruder, the column obtained being cut into tiles of pre-

determined dimension, and which is designated as Group A

NOTE 1 This International Standard classifies extruded tiles as “precision” or “natural”. The classification is dependent

upon the different technical characteristics as listed in the individual product standards.

NOTE 2 Traditional terms used for extruded products are “split tiles” and “quarry tiles”. They commonly indicate double-

extruded and single-extruded tiles, respectively. The term “quarry tiles” only refers to extruded tiles with a water absorption

coefficient of a mass fraction not exceeding 6 %.
3.7
dry-pressed tile

tile, formed from a finely milled body mixture and shaped in moulds at high pressure, and which is

designated as Group B
3.8
water absorption
percentage of water impregnating a tile, measured in accordance with ISO 10545-3
NOTE Water absorption is expressed as a mass fraction of dry mass.
3.9 Sizes

NOTE The sizes are only defined for rectangular tiles. If the sizes of non-rectangular tiles are required, they are

defined by the smallest rectangle into which they fit.
2 © ISO 2012 – All rights reserved
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ISO 13006:2012(E)
3.9.1
nominal size
size used to describe the product
See Figures 1 and 2.
3.9.2
work size

size of a tile specified for manufacturing to which the actual size shall conform within specified permissible deviations

See Figures 1 and 2.
3.9.3
actual size
size obtained by measuring the face of a tile in accordance with ISO 10545-2
See Figures 1 and 2.
3.9.4
coordinating size
work size plus the joint width
See Figures 1 and 2.
3.9.5
modular size

tile and size based on module M, 2 M, 3 M and 5 M and also their multiples or subdivisions, except for tiles with

a surface area of less than 9 000 mm
NOTE See ISO 1006, where 1 M = 100 mm.
See Figures 1 and 2.
3.9.6
non-modular size
size not based on module M
NOTE 1 See ISO 1006, where 1 M = 100 mm.
NOTE 2 Tiles of these sizes are those commonly used in most countries.
See Figures 1 and 2.
3.9.7
tolerance
difference between the permissible limits of size
See Figures 1 and 2.
3.10
spacer lug

projection that is located along certain edges of tiles so that where two tiles are placed together, in line, the lugs

on adjacent edges separate the tiles by a distance of not less than the specified width of the joint

See Figure 2.
3.11
rectified tile

ceramic tile that, after firing, is subjected to a precise mechanical grinding of the edges

NOTE Rectified tiles have tighter dimensional criteria for length and width, straightness of sides, and rectangularity

than given in Annexes A to M.
© ISO 2012 – All rights reserved 3
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ISO 13006:2012(E)
3.12
back feet

parallel ridges running across the back surface of some exterior wall tiles which possess a geometry intended

to facilitate an interlocking connection between tile and cement mortar
See Figure 3.

NOTE Back feet dimensions shall be measured with vernier calipers, and each specimen in a 10-tile sample is

required to satisfy the requirements in Annexes A to M.
4 Classification
4.1 Basis of classification

Ceramic tiles are divided into groups according to their method of manufacture and their water absorption (see

3.8 and Table 1). The groups do not presuppose the usage of the products.
4.2 Methods of manufacture
The following are the two methods of manufacture:
— method A, extruded tiles (see 3.6);
— method B, dry-pressed tiles (see 3.7).
4.3 Water absorption according to group
4.3.1 General
The following are the three groups according to water absorption, E .
4.3.2 Subdivision of the three groups

The three groups are divided into tiles of low, medium and high water absorption, namely Groups I, II and II,

respectively.

a) Tiles of low water absorption, i.e. absorption coefficient less than or equal to a mass fraction of 3 %,

E ≤ 3 %, belong to Group I. Group I consists of the following:
1) for extruded tiles
i) E ≤ 0,5 % (Group AI ), and
b a
ii) 0,5 % < E ≤ 3 % (Group AI );
b b
2) for dry-pressed tiles:
i) E ≤ 0,5 % (Group BI );
b a
ii) 0,5 % < E ≤ 3 % (Group BI ).
b b

b) Tiles of medium water absorption, i.e. 3 % < E ≤ 10 %, belong to Group II. Group II consists of the following:

1) for extruded tiles

i) 3 % < E ≤ 6 % [Group AII , Subgroups (Parts) 1 and 2; see Annex B for Subgroup (Part) 1 or

b a
Annex C for Subgroup (Part) 2], and
4 © ISO 2012 – All rights reserved
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ISO 13006:2012(E)

ii) 6 % < E ≤ 10 % [Group AII , Subgroups (Parts) 1 and 2; see Annex D for Subgroup (Part) 1 or

b b
Annex E for Subgroup (Part) 2];
2) for dry-pressed tiles
i) 3 % < E ≤ 6 % (Group BII ), and
b a
ii) 6 % < E ≤ 10 % (Group BII ).
b b
c) Tiles of high water absorption, i.e. E > 10 %, belong to Group III.
5 Characteristics

The characteristics for different applications of ceramic tiles are given in Table 2.

6 Sampling and basis for acceptance

The sampling and basis for acceptance shall be in accordance with that presented in ISO 10545-1.

7 Requirements

Dimensional and surface quality requirements and physical and chemical properties shall be as given in the

relevant/specific annex, of Annexes A to M, for each tile class.
8 Marking and specifications
8.1 Marking
Tiles and/or their packaging are required to bear the following marking:

a) manufacturer’s mark and/or trademark and the country where the tile was manufactured (i.e. country of

origin, as determined by the relevant international regulation);
b) indication of first quality;
c) type of tile and reference to the appropriate annex of Annexes A to M;
d) nominal and work sizes, modular (M) or non-modular;
e) nature of the surface, i.e. glazed (GL) or unglazed (UGL);
f) any surface treatment applied after firing;
g) total dry weight which the tiles and their packaging shall not exceed.

Each tile conforming to this International Standard is required to bear on its reverse side or edge, the country

where it was manufactured.
8.2 Product literature

Product literature for tiles intended for use on floors shall state the abrasion class or the place of use of glazed tiles.

NOTE See also Annex R for informative symbols.
8.3 Specifications
Tiles shall be designated by the following:
a) the method of shaping;
© ISO 2012 – All rights reserved 5
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ISO 13006:2012(E)
b) the relevant annex of Annexes A to M, covering the specific class of tile;
c) nominal and work sizes, modular (M) and non-modular;
d) the nature of the surface, i.e. glazed (GL) or unglazed (UGL);
e) the addition of back feet, if required.

EXAMPLE 1 Precision extruded tile, ISO 13006:2012, Annex M, AI M 25 cm × 12,5 cm (S 240 mm × 115 mm × 10 mm) GL.

a w

EXAMPLE 2 Natural extruded tile, ISO 13006:2012, Annex A, AI 15 cm × 15 cm (S 150 mm × 150 mm × 12,5 mm) UGL.

b w

EXAMPLE 3 Dry-pressed tile, ISO 13006:2012, Annex G, BI M 25 cm × 12,5 cm (S 240 mm × 115 mm × 10 mm) GL.

a w

EXAMPLE 4 Dry-pressed tile, ISO 13006:2012, Annex L, BIII 15 cm × 15 cm (S 150 mm × 150 mm × 12,5 mm) UGL.

9 Ordering

Each time that an order is placed, items, such as size, thickness, type of surface, colour, profile, abrasion class

for glazed tiles and other properties, shall be agreed upon by the parties concerned.

Table 1 — Classification of ceramic tiles with respect to water absorption and shaping

Group I Group II Group II Group III
a b
Shaping
E ≤ 3 % 3 % < E ≤ 6 % 6 % < E ≤ 10 % E > 10 %
b b b b
Group AI
a a
Group AII Group AII
a-1 b-1
E ≤ 0,5 %
(see Annex B) (see Annex D)
A (see Annex M) Group AIII
Extruded Group AI (see Annex F)
a a
Group AII Group AII
a-2 b-2
0,5 % < E ≤ 3 %
(see Annex C) (see Annex E)
(see Annex A)
Group BI
E ≤ 0,5 %
B (see Annex G) Group BII Group BII Group BIII
a b
Dry pressed Group BI (see Annex J) (see Annex K) (see Annex L)
0,5 % < E ≤ 3 %
(see Annex H)

Groups AII and AII are divided into two subgroups (Parts 1 and 2) with different product specifications.

a b

Group BIII covers glazed tiles only. There is a low quantity of dry-pressed unglazed tiles produced with water absorption greater

than 10 % mass fraction, which is not covered by this product group.
6 © ISO 2012 – All rights reserved
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ISO 13006:2012(E)
Table 2 — Characteristics required for different applications
Characteristics Floor Wall Test
Dimensions and surface quality Interior Exterior Interior Exterior Reference
Length and width X X X X ISO 10545-2
Thickness X X X X ISO 10545-2
Straightness of sides X X X X ISO 10545-2
Rectangularity X X X X ISO 10545-2
Surface flatness (curvature and warpage) X X X X ISO 10545-2
Surface quality X X X X ISO 10545-2
Back feet (if specified) X Figure 3
Physical property Interior Exterior Interior Exterior Reference
Water absorption X X X X ISO 10545-3
Breaking strength X X X X ISO 10545-4
Modulus of rupture X X X X ISO 10545-4
Resistance to deep abrasion — unglazed tiles X X ISO 10545-6
Resistance to surface abrasion — glazed tiles X X ISO 10545-7
Linear thermal expansion X X X X ISO 10545-8
Resistance to thermal shock X X X X ISO 10545-9
Resistance to crazing — glazed tiles X X X X ISO 10545-11
Frost resistance X X ISO 10545-12
Moisture expansion X X X X ISO 10545-10
Small colour differences X X X X ISO 10545-16
Impact resistance X X ISO 10545-5
Chemical property Interior Exterior Interior Exterior Reference
Resistance to staining ISO 10545-14
— glazed tiles X X X X ISO 10545-14
— unglazed tiles X X X X ISO 10545-14
Resistance to low concentrations of acids and alkalis X X X X ISO 10545-13
Resistance to high concentrations of acids and alkalis X X X X ISO 10545-13
Resistance to household cleaners and swimming pool X X X X ISO 10545-13
salts
Lead and cadmium release — glazed tiles X X X X ISO 10545-15

For application to exterior tiles installed by cement mortar, including tunnels, where back feet are specified.

Test method is available.
For tiles intended to be used in situations where frost conditions apply.
© ISO 2012 – All rights reserved 7
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ISO 13006:2012(E)
Key
a, b dimensions of the visible face
d thickness
j joint
S coordinating size
S work size
S = S + j
c w
S = a + b + d
Figure 1 — Tile
Key
1 spacer lugs
j joint
S coordinating size
S work size
S = S + j
c w
S = a + b + d
Figure 2 — Tile with spacer lug
8 © ISO 2012 – All rights reserved
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ISO 13006:2012(E)
a) Example 1 b) Example 2 c) Example 3
Key
h height
L length
Figure 3 — Back feet — Examples
© ISO 2012 – All rights reserved 9
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ISO 13006:2012(E)
Annex A
(normative)
Extruded ceramic tiles with low water absorption
0,5 < E ≤ 3 %
Group AI
A.1 Requirements

Dimensional and surface quality requirements and physical and chemical properties are required to be in

accordance with Table A.1.
Table A.1 — Requirements for extruded ceramic tiles — Group AI , 0,5 < E ≤ 3 %
b b
Dimensions and surface quality Precision Natural Test
Length and width
The manufacturer shall choose the work size
as follows:
a) for modular tiles in order to allow a
nominal joint width of between 3 mm and
11 mm ;
b) for non-modular tiles so that the
difference between the work size and the
nominal size is not more than ± 3 mm.
The deviation, in per cent, of the average
± 1,0 % to a ± 2,0 % to a
size for each tile (two or four sides) from the ISO 10545-2
maximum of ± 2 mm maximum of ± 4 mm
work size, S
The deviation, in per cent, of the average
size for each tile (two or four sides) from the
± 1,0 % ± 1,5 % ISO 10545-2
average size of the 10 test specimens
(20 or 40 sides)
Thickness
a) The thickness shall be specified by the
manufacturer
b) The deviation, in per cent, of the average
thickness of each tile from the work size ± 10 % ± 10 % ISO 10545-2
thickness
Straightness of sides (facial sides)
The maximum deviation from straightness,
in per cent, related to the corresponding ± 0,5 % ± 0,6 % ISO 10545-2
work sizes
Rectangularity
The maximum deviation from rectangularity,
in per cent, related to the corresponding ± 1,0 % ± 1,0 % ISO 10545-2
work sizes
10 © ISO 2012 – All rights reserved
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ISO 13006:2012(E)
Table A.1 (continued)
Dimensions and surface quality Precision Natural Test
Surface flatness
The maximum deviation from flatness, in per
cent:
a) centre curvature, related to diagonal
± 0,5 % ± 1,5 % ISO 10545-2
calculated from the work sizes;
b) edge curvature, related to the
± 0,5 % ± 1,5 % ISO 10545-2
corresponding work sizes;
c) warpage, related to the diagonal
± 0,8 % ± 1,5 % ISO 10545-2
calculated from the work sizes.
Back feet (if specified)
a) Height, h, for tiles of surface area, A
2 2
49 cm ≤ A < 60 cm Minimum h = 0,7 mm; Maximum h = 3,5 mm Figure 3
A ≥ 60 cm Minimum h = 1,5 mm; Maximum h = 3,5 mm Figure 3
Back feet as specified by the manufacturer and
b) Shape Figure 3
as shown in one of the examples in Figure 3
Example 1 (see Figure 3) L - L > 0 Figure 3
0 1
Example 2 (see Figure 3) L - L > 0 Figure 3
0 2
Example 3 (see Figure 3) L - L > 0 Figure 3
0 3
A minimum of 95 % of the tiles are to be free
Surface quality from visible defects which can impair the ISO 10545-2
appearance of a major area of tiles
Physical property Precision Natural Test
0,5 < E ≤ 3,0 % 0,5 < E ≤ 3,0 %
b b
Water absorption
Individual maximum Individual maximum ISO 10545-3
Per cent mass fraction
3,3 % 3,3 %
Breaking strength, in Newtons
a) Thickness ≥ 7,5 mm Not less than 1 100 Not less than 1 100 ISO 10545-4
b) Thickness < 7,5 mm Not less than 600 Not less than 600 ISO 10545-4
Modulus of rupture, in Newtons per
square millimetre Minimum 23 Minimum 23
ISO 10545-4

Not applicable to tiles with breaking strength Individual minimum 18 Individual minimum 18

≥ 3 000 N
Abrasion resistance
a) Resistance to deep abrasion of unglazed
Maximum 275 Maximum 275 ISO 10545-6
tiles: removed volume, in cubic millimetres

b) Resistance to surface abrasion of glazed Report abrasion class Report abrasion class

ISO 10545-7
tiles intended for use on floors and cycles passed and cycles passed
Coefficient of linear thermal expansion

From ambient temperature to 100 °C Test method available Test method available ISO 10545-8

© ISO 2012 – All rights reserved 11
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ISO 13006:2012(E)
Table A.1 (continued)
Physical property Precision Natural Test
Thermal shock resistance Test method available Test method available ISO 10545-9
Crazing resistance: glazed tiles Required Required ISO 10545-11
Frost resistance Required Required ISO 10545-12
Moisture expansion, in millimetres per
Test method available Test method available ISO 10545-10
metre
Plain coloured tiles Plain coloured tiles
only where required only where required
Small colour differences ISO 10545-16
GL: ΔE < 0,75 GL: ΔE < 0,75
UGL: ΔE < 1,0 UGL: ΔE < 1,0
Impact resistance Test method available Test method available ISO 10545-5
Chemical property Precision Natural Test
Resistance to staining
a) Glazed tiles Minimum class 3 Minimum class 3 ISO 10545-14
b) Unglazed tiles Test method available Test method available ISO 10545-14
Resistance to chemicals
Resistance to low concentrations of acids
and alkalis:
a) glazed tiles;
Manufacturer is to Manufacturer is to
ISO 10545-13
state classification state classification
b) unglazed tiles.
Resistance to high concentrations of acids
Test method available Test method available ISO 10545-13
and alkalis
Resistance to household chemicals and
swimming pool salts:
a) glazed tiles; Minimum GB Minimum GB
ISO 10545-13
b) unglazed tiles. Minimum UB Minimum UB

Lead and cadmium release Test method available Test method available ISO 10545-15

Similar joint widths shall be used to apply to traditional systems based on non-metric sizes.

Not applicable to tiles having curved shapes.

As a result of firing, slight variations from this standard colour are unavoidable. This does not apply to intentional irregularities

of colour variation of the face of tiles (which can be unglazed, glazed or partly glazed) or to the colour variation over a tile area

which is characteristic for this type of tile and desirable. Spots or coloured dots which are introduced for decorative purposes are not

considered a defect.

Use Annex N for the abrasion resistance classification for all glazed tiles intended for use on floors.

Annex P gives information regarding requirements which are non-compulsory but which are listed as “test method available”.

Certain decorative effects can have a tendency to craze. These are to be identified by the manufacturer, in which case, the

crazing test given in ISO 10545-11 is not applicable.

Where applicable, tile thickness shall include the addition of back feet heights, as measured in accordance with Figure 3.

12 © ISO 2012 – All rights reserved
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ISO 13006:2012(E)
Annex B
(normative)
Extruded ceramic tiles
3 % < E ≤ 6 %
Group AIIa — Subgroup (Part) 1
B.1 Requirements

Dimensional and surface quality requirements and physical and chemical properties are required to be in

accordance with Table B.1.
Table B.1 — Requirements for extruded ceramic tiles — Group AII , 3 % < E ≤ 6 %
a-1 b
Dimensions and surface quality Precision Natural Test
Length and width
The manufacturer shall choose the work size
as follows:
a) for modular tiles in order to allow a
nominal joint width of between 3 mm and
11 mm ;
...

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