EN 13162:2012

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Toplotnoizolacijski proizvodi za stavbe - Proizvodi iz mineralne volne (MW) - SpecifikacijaWärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Mineralwolle (MW) - SpezifikationProduits isolants thermiques pour le bâtiment - Produits manufacturés en laine minérale (MW) - SpécificationThermal insulation products for buildings - Factory made mineral wool (MW) products - Specification91.100.60Thermal and sound insulating materialsICS:Ta slovenski standard je istoveten z:EN 13162:2012SIST EN 13162:2013en,fr,de01-marec-2013SIST EN 13162:2013SLOVENSKI
STANDARDSIST EN 13162:20091DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13162
November 2012 ICS 91.100.60 Supersedes EN 13162:2008English Version
Thermal insulation products for buildings - Factory made mineral wool (MW) products - Specification
Produits isolants thermiques pour le bâtiment - Produits manufacturés en laine minérale (MW) - Spécification
Wärmedämmstoffe für Gebäude - Werkmäßig hergestellte Produkte aus Mineralwolle (MW) - Spezifikation This European Standard was approved by CEN on 6 October 2012.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13162:2012: ESIST EN 13162:2013

Determination of the declared values of thermal resistance and
thermal conductivity . 23Annex B (normative)
Initial type testing (ITT) and factory production control (FPC) . 25Annex C (normative)
MW multi-layered insulation products . 29Annex D (informative)
Examples for the determination of the declared values of thermal resistance and thermal conductivity for a product or a product group . 31Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EU Construction Products Directive. 34Bibliography . 42 Tables Table 1 — Level and classes for thickness tolerances . 11Table 2 — Dimensional stability under specified temperature and humidity conditions . 13Table 3 — Classes for thickness tolerances . 15Table 4 — Levels for compressibility . 15Table 5 — Test methods, test specimens and conditions . 18Table A.1 — Values for k for one sided 90 % tolerance interval with a confidence level of 90 % . 24Table B.1 — Minimum number of tests for ITT and minimum product testing frequencies . 25Table B.2 — Minimum product testing frequencies for the reaction to fire characteristics . 27Table D.1 — λ test results . 31Table D.2 — R test results . 32Table ZA.1 — Relevant clauses for Mineral wool and intended use . 35Table ZA.2 — Systems of attestation of conformity . 36Table ZA.3.1 — Assignment of evaluation of conformity tasks for products under system 1 . 37Table ZA.3.2 — Assignment of evaluation of conformity tasks for products under system 3 or system 3 combined with system 4 for reaction to fire . 38 Figures Figure ZA.1 — Example CE marking information . 41 SIST EN 13162:2013

Compared with EN 13162:2008, the main changes are: a) better harmonisation between the individual standards of the package (EN 13162 to EN 13171) on definitions, requirements, classes and levels; b) new normative annex on multi-layered products; c) changes of some editorial and technical content and addition of information on some specific items such as for MW: lamella, compressibility…; d) addition to links to EN 15715, Thermal insulation products — Instructions for mounting and fixing for reaction to fire testing — Factory made products; e) changes to Annex ZA. This standard is one of a series of standards for thermal insulation products used in buildings but this standard may be used in other areas where appropriate. In pursuance of Resolution BT 20/1993 revised, CEN/TC 88 have proposed defining the standards listed below as a package of documents. The package of standards comprises the following group of interrelated standards for the specifications of factory made thermal insulation products, all of which come within the scope of CEN/TC 88: EN 13162, Thermal insulation products for buildings — Factory made mineral wool (MW) products —Specification EN 13163, Thermal insulation products for buildings — Factory made expanded polystyrene (EPS) products — Specification EN 13164, Thermal insulation products for buildings — Factory made extruded polystyrene foam (XPS) products — Specification EN 13165, Thermal insulation products for buildings — Factory made rigid polyurethane foam (PU) products — Specification SIST EN 13162:2013

1 Scope This European Standard specifies the requirements for factory made mineral wool products, with or without facings or coatings, which are used for the thermal insulation of buildings. The products are manufactured in the mat blankets, boards or slabs. Products covered by this standard are also used in prefabricated thermal insulation systems and composite panels; the performance of systems incorporating these products is not covered. This standard describes product characteristics and includes procedures for testing, evaluation of conformity, marking and labelling. This standard does not specify the required level of a given property to be achieved by a product to demonstrate fitness for purpose in a particular application. The levels required for a given application are to be found in regulations or non-conflicting standards. Products with a declared thermal resistance lower than 0,25 m2⋅K/W or a declared thermal conductivity greater than 0,060 W/(m⋅K) at 10 °C are not covered by this standard.
This standard does not cover in situ insulation products (covered by EN 14064 parts 1 and 2) and products intended to be used for the insulation of building equipment and industrial installations (covered by EN 14303). 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 822, Thermal insulating products for building applications — Determination of length and width EN 823, Thermal insulating products for building applications — Determination of thickness EN 824, Thermal insulating products for building applications — Determination of squareness EN 825, Thermal insulating products for building applications — Determination of flatness EN 826, Thermal insulating products for building applications — Determination of compression behaviour EN 1604, Thermal insulating products for building applications — Determination of dimensional stability under specified temperature and humidity conditions EN 1606, Thermal insulating products for building applications — Determination of compressive creep EN 1607, Thermal insulating products for building applications — Determination of tensile strength perpendicular to faces EN 1609, Thermal insulating products for building applications — Determination of short term water absorption by partial immersion EN 12086:1997, Thermal insulating products for building applications — Determination of water vapour transmission properties EN 12087, Thermal insulating products for building applications — Determination of long-term water absorption by immersion SIST EN 13162:2013

(ISO 9053) EN ISO 354, Acoustics — Measurement of sound absorption in a reverberation room (ISO 354) EN ISO 1182, Reaction to fire tests for products — Non-combustibility test (ISO 1182) EN ISO 1716, Reaction to fire tests for products — Determination of the gross heat of combustion (calorific value) (ISO 1716) EN ISO 9229:2007, Thermal insulation — Vocabulary (ISO 9229:2007) EN ISO 11654, Acoustics — Sound absorbers for use in buildings — Rating of sound absorption (ISO 11654)
EN ISO 11925-2, Reaction to fire tests — Ignitability of products subjected to direct impingement of flame — Part 2: Single-flame source test (ISO 11925-2) ISO 16269-6:2005, Statistical interpretation of data — Part 6: Determination of statistical tolerance intervals SIST EN 13162:2013

mineral wool insulation wool manufactured from molten rock, slag or glass 3.1.2
level value which is the upper or lower limit of a requirement and given by the declared value of the characteristic concerned 3.1.3
class combination of two levels of the same property between which the performance shall fall 3.1.4
mat, blanket flexible fibrous insulation product supplied rolled or flat, which may be faced or enclosed 3.1.5
board; slab rigid or semi-rigid (insulation) product of rectangular shape and cross section in which the thickness is uniform and substantially smaller than the other dimensions Note 1 to entry: Board is usually thinner than slab. They may also be supplied in tapered form. 3.1.6
facing functional or decorative surface layer with a thickness of less than 3 mm, e.g. paper, plastic film, fabric or metal foil, which is not considered as separate thermal insulation layer to be added to the thermal resistance of the product
3.1.7
coating functional or decorative surface layer with a thickness of less than 3 mm usually applied by painting, spraying, pouring or trowelling, which is not considered as separate thermal insulation layer to be added to the thermal resistance of the product 3.1.8
composite insulation product
product which can be faced or coated made from two or more layers bonded together by chemical or physical adhesion consisting of at least one factory made thermal insulation material layer 3.1.9
multi-layered insulation product product which can be faced or coated made from two or more layers of a thermal insulation material from the same European Standard, which are bonded together horizontally by chemical or physical adhesion
3.2 Symbols, units and abbreviated terms For the purposes of this document, the following symbols and units apply. SIST EN 13162:2013

W/(m⋅K) λU is the design thermal conductivity
W/(m⋅K) µ is the water vapour diffusion resistance factor – N is the number of test results – R90/90 is a 90 % fractile with a confidence level of 90 % for the thermal resistance m2⋅K/W RD is the declared thermal resistance m2⋅K/W Ri is one test result of thermal resistance m2⋅K/W Rmean is the mean thermal resistance
m2⋅K/W RU is the design thermal resistance
m2⋅K/W Sb is the deviation from squareness of the edge on length and width mm/m Smax is the deviation from flatness mm sR is the estimate of the standard deviation of the thermal resistance m2⋅K/W Sλ is the estimate of the standard deviation of the thermal conductivity W/(m⋅K) s′ is the dynamic stiffness MN/m3 σ10 is the compressive stress at 10 % deformation kPa SIST EN 13162:2013

CS(10\Y) is the symbol of the declared level for compressive stress or compressive strength DS(70,-) is the symbol of the declared value for dimensional stability at specified temperature DS(23,90)
or
DS (70,90) is the symbol of the declared value for dimensional stability under specified temperatureand relative humidity conditions MU is the symbol of the declared value for water vapour diffusion resistance factor PL(5) is the symbol of the declared level of point load for 5 mm deformation SD is the symbol of the declared level of dynamic stiffness SS is the symbol of the declared value of shear strength T is the symbol of the declared class or level for thickness tolerances TR is the symbol of the declared level for tensile strength perpendicular to faces WL(P) is the symbol of the declared level for long term water absorption by partial immersion WS is the symbol of the declared level for short term water absorption Z is the symbol of the declared value for water vapour resistance Abbreviated terms used in this standard: MW is Mineral Wool ITT is Initial Type Test SIST EN 13162:2013

Examples of determination of the declared values of thermal resistance, RD, and thermal conductivity, λD, are given in Annex D. NOTE U and RU (design values) may be determined with reference to EN ISO 10456. 4.2.2 Length and width Length, l, and width, b, shall be determined in accordance with EN 822. No test result shall deviate from the nominal values by more than the following:  ± 2 % for length,  ± 1,5 % for width. 4.2.3 Thickness Thickness, d, shall be determined in accordance with EN 823. The load shall be 50 Pa except for products with a level of compressive stress or compressive strength of 10 kPa or greater (see 4.3.3), where the load shall be 250 Pa. No test result shall deviate from the nominal thickness, dN, by more than the tolerances given in Table 1 for the declared level or class. Table 1 — Level and classes for thickness tolerances Level or class Tolerances T1 –5 % or –5 mma Excess permitted T2 –5 % or –5 mma +15 % or +15 mmb T3 –3 % or –3 mma +10 % or +10 mmb T4 –3 % or –3 mma +5 % or +5 mmb T5 –1 % or –1 mma +3 mm a Whichever gives the greatest numerical tolerance. b Whichever gives the smallest numerical tolerance.
This test shall not be performed when the tests described in 4.3.10 are used. 4.2.4 Squareness Squareness shall be determined in accordance with EN 824. The deviation from squareness on length and width, Sb, of boards and slabs shall not exceed 5 mm/m. 4.2.5 Flatness Flatness shall be determined in accordance with EN 825. The deviation from flatness, Smax, of boards and slabs, shall not exceed 6 mm. SIST EN 13162:2013

NOTE 1 This classification is compulsory and always included in the CE Marking label.
Detailed information about the test conditions and the field of application of the classification as stated in the reaction to fire classification report shall be given in the manufacturer's literature.
Manufacturers declaring Euroclass A1 without further test shall demonstrate by testing in accordance with EN 13820 that the products do not contain more than 1,0 % by weight of organic matter.
NOTE 2 The Commission Decision 96/603/EC of 4 October 1996, amended by the Commission Decisions 2000/605/EC of 26 September 2000 and 2003/424/EG of 6 June 2003, gives the list of products to be considered as reaction to fire class Euroclass A1 without the need for testing. 4.2.7 Durability characteristics 4.2.7.1 General The appropriate durability characteristics have been considered and are covered in 4.2.7.2, 4.2.7.3. and where appropriate in 4.3.6 on compressive creep. 4.2.7.2 Durability of reaction to fire of the product as placed on the market against ageing/ degradation The reaction to fire performance of MW products as declared by 4.2.6 does not change with time. 4.2.7.3 Durability of thermal resistance and thermal condictivity against ageing/ degradation The thermal conductivity of MW products does not change with time. This is covered and considered for declaration by 4.2.1 thermal conductivity and any change in thickness is covered by at least one of the 4.3.2 dimensional stability tests, as relevant. 4.3 For specific applications 4.3.1 General If there is no requirement for a property described in 4.3 for a product in use, then the property does not need to be determined and declared by the manufacturer. 4.3.2 Dimensional stability Dimensional stability under specified temperature or under specified temperature and humidity conditions shall be determined in accordance with EN 1604. The test shall be carried out for the conditions given in Table 2. The relative changes in length, û 0l, and width, û0b and the relative reduction in thickness, ∆εd, shall not exceed the values given in Table 2 for the declared level. SIST EN 13162:2013

Table 2 — Dimensional stability under specified temperature and humidity conditions Designation ConditionTest method Requirementlength, û 0l, and width, û0b % thickness, ∆εd % DS(70,-)
48 h, 70 ºC EN 1604 1 1 DS(23,90)
48 h, 23 ºC, 90 % R.H. EN 1604 1 1 DS(70,90)
48 h, 70 ºC, 90 % R.H. EN 1604 1 1 The test DS(70,-) and DS(23,90) need not be performed when the test DS(70,90) is used. 4.3.3 Compressive stress or compressive strength Compressive stress at 10 % deformation, σ10, or the compressive strength, σm, shall be determined in accordance with EN 826. No test result for either the compressive stress at 10 % deformation or the compressive strength, whichever is the smaller, shall be less than the declared level, CS(10\Y), chosen from the following values: 0,5 kPa; 5 kPa; 10 kPa; 15 kPa; 20 kPa; 25 kPa; 30 kPa; 40 kPa; 50 kPa; 60 kPa; 70 kPa; 80 kPa; 90 kPa; 100 kPa; 110 kPa; 120 kPa; 130 kPa; 140 kPa; 150 kPa; 175 kPa; 200 kPa; 225 kPa; 250 kPa; 300 kPa; 350 kPa; 400 kPa; 450 kPa; 500 kPa. The labelled level shall indicate the level for compressive stress at 10 % deformation, CS(10), or the level for compressive strength, CS(Y), whichever is the smaller or both, CS(10\Y), if the smaller one cannot be identified (e.g. CS(10)90 or CS(Y)90 or CS(10\Y)90). 4.3.4 Tensile strength perpendicular to faces Tensile strength perpendicular to faces, σmt, shall be determined in accordance with EN 1607. No test result shall be less than the declared level, TR, chosen from the following values: 1 kPa; 2,5 kPa; 5 kPa; 7,5 kPa; 10 kPa; 15 kPa; 20 kPa; 25 kPa; 30 kPa; 40 kPa; 50 kPa; 60 kPa; 70 kPa; 80 kPa; 90 kPa; 100 kPa; 125 kPa; 150 kPa; 175 kPa; 200 kPa; 250 kPa; 300 kPa; 400 kPa; 500 kPa; 600 kPa; 700 kPa (e.g. TR200). 4.3.5 Point load Point load, Fp, at 5 mm deformation shall be determined in accordance with EN 12430 and declared in levels with steps of 50 N. No test result shall be less than the declared level. 4.3.6 Compressive creep Compressive creep, Xct, and total thickness reduction, Xt, shall be determined after at least one hundred and twenty two days of testing at a declared compressive stress, σc, given in steps of at least 1 kPa, and the results shall be extrapolated thirty times, corresponding to ten years, to obtain the declared level in accordance with EN 1606. Compressive creep shall be declared in levels, i2, and total thickness reduction shall be declared in levels, i1, with steps of 0,1 mm at the declared stress. No test result shall exceed the declared level at the declared stress. SIST EN 13162:2013

4.3.7 Water absorption 4.3.7.1 Short term water absorption Short term water absorption by partial immersion, Wp, shall be determined in accordance with EN 1609. No test result shall exceed 1,0 kg/m2. 4.3.7.2 Long term water absorption Long term water absorption by partial immersion, Wlp, shall be determined in accordance with EN 12087. No test result shall exceed 3,0 kg/m2. 4.3.8 Water vapour transmission Water vapour transmission properties shall be determined in accordance with EN 12086, and declared as the water vapour diffusion resistance factor, µ, for homogeneous products and as the water vapour resistance, Z, for faced or non-homogeneous products. No test result of µ shall be greater than the declared value and no test result of Z shall be less than the declared value. In the absence of measurements, the water vapour diffusion resistance factor, µ, of mineral wool products, either unfaced or faced with a fabric with an open structure, may be assumed to be equal to 1. Alternatively for the declaration of the water vapour diffusion resistance factor, µ, of MW products, the values quoted in EN ISO 10456 may be used; e.g. MW products either unfaced or faced with a fabric with an open structure, may be assumed to be equal to 1. 4.3.9 Dynamic stiffness Dynamic stiffness, s′, shall be determined in accordance with EN 29052-1, without preloading. The value of dynamic stiffness shall be declared in levels with steps of 1 MN/m3. No test result shall exceed the declared level. 4.3.10 Compressibility 4.3.10.1 General The main application of products using compressibility is floating floors. SIST EN 13162:2013

+15 % or +3 mma T7 0 +10 % or +2 mma a Whichever gives the greatest numerical tolerance.
4.3.10.3 Thickness, dB Thickness, dB, shall be determined according to EN 12431 with a pause of 120 s before measuring dB. 4.3.10.4 Compressibility, c Compressibility, c, shall be determined as the difference between dL and dB for products in classes T6 and T7 (see 4.3.10.2). No test result shall exceed the values given in Table 4 for the declared level. A test result is the mean of the readings for the number of test specimens tested. Table 4 — Levels for compressibility Level Imposed load on the screedCompressibility, c kPa Nominal compressibility mm Tolerance test results mm CP5 ≤ 2,0 ≤ 5 +2 CP4 ≤ 3,0 ≤ 4 CP3 ≤ 4,0 ≤ 3 CP2 ≤ 5,0 ≤ 2 +1
NOTE 1 The levels of the imposed load on the screed are taken from EN 1991-1-1 [1]. NOTE 2 A test result is the mean of the readings for the number of test specimen tested. The levels CP3, CP4 and CP5 relate to the thickness tolerance class T6 and the level CP2 relates to the thickness tolerance class T7 (see 4.3.10.2). 4.3.10.5 Long term thickness reduction If the imposed load on the screed exceeds 5 kPa only products having a declared level of compressibility of CP2 may be used and their long term thickness reduction shall be determined. The total thickness reduction, Xt = X0 + Xct, shall be determined after one hundred and twenty two days of testing at the imposed load plus the self-weight of the screed, in accordance with EN 1606 and extrapolated thirty times, corresponding to ten years. The ten years value shall not exceed the declared level of compressibility (see 4.3.10.4). SIST EN 13162:2013

NOTE 1 European test methods are under development. NOTE 2 See Annex ZA. 4.3.14 Reaction to fire of the product in standardized assemblies simulating end-use applications
Reaction to fire classification of products in standardized assemblies simulating end-use applications excluding pipe insulation, shall be determined in accordance with EN 13501-1 and the Mounting and Fixing rules given in EN 15715.
This classification offers the opportunity to give a complementary and optional declaration on reaction to fire for standard test configurations of assemblies which include the insulation product.
The number of the selected test configuration of assembly (Table 5 of EN 15715:2009) which is used in the test shall be quoted with the Euroclass.
Detailed information about the test conditions and the field of application of the classification as stated in the reaction to fire classification report shall be given in the manufacturer's literature.
4.3.15 Continuous glowing combustion NOTE A test method is under development and the standard will be amended when this is available.
4.3.16 Shear strength Shear strength, τ, shall be determined in accordance with EN 12090. If the shear stress is declared, no test result shall be less than the declared value, SSi. 4.3.17 Bending strength Bending strength, σb, shall be determined in accordance with EN 12089. If the bending strength is declared, no test result shall be less than the declared level, BSi, chosen from the following values: 25 kPa, 50 kPa, 75 kPa, 100 kPa, 125 kPa, 150 kPa, 175 kPa, 200 kPa, 250 kPa, 300 kPa, 350 kPa, 400 kPa, 450 kPa, 500 kPa, 600 kPa, 700 kPa (e.g. BS100). SIST EN 13162:2013

Minimum number of measurements to get one test result Specific conditions No Title 4.2.1 Thermal resistance and thermal conductivity EN 12667 EN 12939 See EN 12667 or EN 12939 1 – 4.2.2 Length and width EN 822 Full-size 1 – 4.2.3 Thickness EN 823 Full-size Roll: 1 Board and Batt: 3 Method B.1, 50 Pa or 250 Pa see 4.2.3 4.2.4 Squareness EN 824 Full-size 1 – 4.2.5 Flatness EN 825 Full-size 1 – 4.2.6 Reaction to fire of the product as placed on the market See EN 13501-1 and EN 15715 See Clause 5 of EN 15715:2009 4.3.2 Dimensional stability under specified conditions EN 1604 200 × 200 3 – 4.3.3 Compressive stress or strength EN 826 200 × 200 5 Surface grindingb
300 × 300 3 4.3.4 Tensile strength perpendicular to faces EN 1607 200 × 200 5 – – 300 × 300 3 4.3.5 Point load EN 12430 300 × 300 3 – 4.3.6 Compressive creep EN 1606 200 × 200 300 × 300 5 3 Surface grindingb 4.3.7 Short term water absorption EN 1609 200 × 200 4 Method A Long term water absorption EN 12087 200 × 200 4 Method 1A 4.3.8 Water vapour transmission EN 12086 See 6.1 in EN 12086:1997 3 c
4.3.9 Dynamic stiffness EN 29052-1200 × 200 3 – 4.3.10 Thickness, dL EN 12431 200 × 200 3 Classes T6 and T7 Thickness, dB EN 12431 Long term thickness reduction EN 1606 Level CP2 4.3.11 Sound absorption EN ISO 354Minimum 10 m2 1 To be reported SIST EN 13162:2013

– – – 4.3.14 Reaction to fire of the product in standardized assemblies simulating end-use applications see EN 13501-1 and EN 15715
See Clause 6 of EN 15715:2009
4.3.15 Continuous glowing combustion d
– – – 4.3.16 Shear strength EN 12090 250 × 50 3 Single test specimen 200 x 100 3 Double test specimen 4.3.17 Bending strength EN 12089 Full size 1 Method A 150 × 5 × thickness + 50 mm.
3 Method B a Full-size product thickness except for 4.2.6 when the limits of the test methods are exceeded. If for 4.3.3 and 4.3.6 the thickness
of the test thickness of the test specimen is greater than the width, the length and the width shall be at least equal to the thickness
of the test specimen. b Unfaced products shall be ground. Faced products shall have a suitable surface treatment. c When testing products with water vapour barrier, in accordance with EN 12086, the specimen thickness to measure is the water
vapour barrier thickness plus 2 to 3 mm. d Not yet available.
6 Designation code A designation code for the product shall be given by the manufacturer. The following shall be included except when there is no requirement for a property described in 4.3.  The mineral wool abbreviated term MW  This document number EN 13162  Thickness tolerances Ti  Dimensional stability at specified temperature DS(70,-)  Dimensional stability under specified temperature and humidity conditions DS(23,90) or DS(70,90) SIST EN 13162:2013
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