1、August 2016 English price group 16No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 11.060.10!%XtD“2538133www.din.deD
2、IN EN ISO 15912Dentistry Refractory investment and die material (ISO 15912:2016);English version EN ISO 15912:2016,English translation of DIN EN ISO 15912:2016-08Zahnheilkunde Hochtemperaturbestndige Einbettmassen und Stumpfmaterialien (ISO 15912:2016);Englische Fassung EN ISO 15912:2016,Englische b
3、ersetzung von DIN EN ISO 15912:2016-08Mdecine bucco-dentaire Revtements et matriaux pour modles rfractaires (ISO 15912:2016);Version anglaise EN ISO 15912:2016,Traduction anglaise de DIN EN ISO 15912:2016-08SupersedesDIN EN ISO 15912:2011-10www.beuth.deDocument comprises 35 pagesDTranslation by DIN-
4、Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.07.16 DIN EN ISO 15912:2016-08 2 A comma is used as the decimal marker. National foreword This document (EN ISO 15912:2016) has been prepared by Technical Committee ISO/TC 106 “Dentistry” in collaboration
5、 with Technical Committee CEN/TC 55 “Dentistry” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Dental (DIN Standards Committee Dentistry), Working Committee NA 014-00-09 AA Gipse, Wachse, Einbettmassen. The DIN Standards corresponding to
6、the International Standards referred to in this document are as follows: ISO 286-2 DIN EN ISO 286-2 ISO 1942 DIN EN ISO 1942 ISO 3696 DIN ISO 3696 ISO 6344-1 DIN ISO 6344-1 ISO 6872 DIN EN ISO 6872 ISO 8601 DIN ISO 8601 ISO 15854 DIN EN ISO 15854 ISO 22674 DIN EN ISO 22674 Amendments This standard d
7、iffers from DIN EN ISO 15912:2011-10 as follows: a) the scope of the standard has been extended to include dental pressable-ceramic investment materials; b) dental casting investment products are now classified according to their intended use and indication-related, irrespective of their composition
8、; c) where appropriate, aspects of the test procedures have been changed to follow the manufacturers instructions for use. The requirement for thermal dimensional change now takes into account the cooling of some products (after burn-out) to a lower casting temperature. The specification for the dil
9、atometer has been changed to be compatible with the heating and where relevant, the cooling after burn-out of the product to the casting temperature; d) the procedure for determining the initial setting time has been revised to bring it into line with ISO 6873:2013; e) the information for use now re
10、quires a statement of the type of refractory phase(s) that is (are) present; f) the labelling requirements for products that contain silica have been revised to comply with the current United Nations Globally Harmonized System for Classification and Labelling of Chemicals (UN GHS) 2 and the recommen
11、dations for silica as a hazardous material; g) for liquid containers, marking has been specified (e.g. intended use, “USE BEFORE” date). DIN EN ISO 15912:2016-08 3 Previous editions DIN EN ISO 7490: 2001-09 DIN EN 27490: 1991-11 DIN 13919: 1984-10 DIN EN ISO 9694: 1999-03 DIN 13919-2: 1989-06, 1990-
12、09 DIN EN ISO 11244: 1999-12 DIN EN ISO 11245: 2000-10 DIN EN ISO 11246: 1999-03 DIN EN ISO 15912: 2007-01, 2011-10 National Annex NA (informative) Bibliography DIN EN ISO 286-2, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolera
13、nce grades and limit deviations for holes and shafts DIN EN ISO 1942, Dentistry Vocabulary DIN EN ISO 6872, Dentistry Ceramic materials DIN EN ISO 15854, Dentistry Casting and baseplate waxes DIN EN ISO 22674, Dentistry Metallic materials for fixed and removable restorations and appliances DIN ISO 3
14、696, Water for analytical laboratory use Specification and test methods DIN ISO 6344-1, Coated abrasives Grain size analysis Part 1: Grain size distribution test DIN ISO 8601, Data elements and interchange formats Information interchange Representation of dates and times DIN EN ISO 15912:2016-08 4 T
15、his page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15912 February 2016 ICS 11.060.10 Supersedes EN ISO 15912:2006English Version Dentistry - Refractory investment and die material(ISO15912:2016) Mdecine bucco-dentaire - Revtements et matriaux pour modles rfracta
16、ires (ISO 15912:2016) Zahnheilkunde - Hochtemperaturbestndige Einbettmassen und Stumpfmaterialien(ISO15912:2016) This European Standard was approved by CEN on 24 October 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Eur
17、opean 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 versio
18、ns (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, B
19、elgium, 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, Swi
20、tzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN nation
21、al Members. Ref. No. EN ISO 15912:2016 EEuropean foreword .41 Scope . 72 Normative references 73 Terms and definitions . 74 Classification 95 Requirements 95.1 General . 95.2 Material consistency and freedom from contamination . 95.3 Fluidity . 95.4 Initial setting time .105.5 Compressive strength 1
22、05.6 Linear thermal dimensional change 105.7 Adequacy of expansion of Type 1 and Type 2 materials 106 Sampling, test conditions and mixing .106.1 Sampling 106.2 Test conditions .106.3 Mixing 116.3.1 Apparatus 116.3.2 Procedure 117 Test methods 117.1 Material consistency and freedom from contaminatio
23、n 117.1.1 Test procedure 117.1.2 Test report 117.2 Fluidity 117.2.1 Apparatus 117.2.2 Number of test-pieces 127.2.3 Test procedure 127.2.4 Evaluation of results 127.2.5 Test report 127.3 Initial setting time .137.3.1 Apparatus 137.3.2 Procedure 157.3.3 Number of determinations.157.3.4 Evaluation of
24、results 167.3.5 Test report 167.4 Compressive strength 167.4.1 Apparatus 167.4.2 Number of test-pieces 167.4.3 Preparation of test-pieces . 177.4.4 Test procedure 177.4.5 Evaluation of results 187.4.6 Test report 187.5 Linear thermal dimensional change 187.5.1 Apparatus 187.5.2 Number of test-pieces
25、 197.5.3 Preparation of the test-piece 197.5.4 Test procedure for the measurement of linear thermal expansion of Types 1, 2 and 3 products 20Contents PageEN ISO 15912:2016 (E) DIN EN ISO 15912:2016-08 2Foreword . 57.6 Adequacy of expansion of Type 1 and Type 2 products .227.6.1 General. 227.6.2 Type
26、 1 and Type 2 products intended for casting of dental metallic materials .237.6.3 Type 1 products intended for dental pressable-ceramic products 247.6.4 Evaluation of results 267.6.5 Test report 268 Manufacturers instructions 268.1 General 268.2 Information for use 268.3 Physical properties . 278.4
27、Safety labelling and instructions for a product containing silica .289 Marking .289.1 General 289.2 Powder container 289.2.1 Outer container 289.2.2 Individual packets 299.3 Liquid container 2910 Packaging 2910.1 Powder 2910.2 Liquid . 30Bibliography .31EN ISO 15912:2016 (E) DIN EN ISO 15912:2016-08
28、 37.5.5 Test procedure for the measurement of linear thermal dimensional changes of a Type 4 product . 217.5.6 Evaluation of results 217.5.7 Test report 22European foreword This document (EN ISO 15912:2016) has been prepared by Technical Committee ISO/TC 106 “Dentistry” in collaboration with Technic
29、al Committee CEN/TC 55 “Dentistry” the secretariat of which is held by DIN. 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 August 2016, and conflicting national standards shall be withdrawn at th
30、e latest by August 2016. 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 ISO 15912:2006. According to the
31、CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hun
32、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 15912:2016 has been approved by CEN as EN ISO 15912:2016 without any
33、modification. EN ISO 15912:2016 (E) DIN EN ISO 15912:2016-08 4 ForewordISO (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 comm
34、ittees. 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
35、International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
36、 different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO
37、 shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this docume
38、nt is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (
39、TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 106 Dentistry, Subcommittee SC2, Prosthodontic Materials.This second edition cancels and replaces the first edition (ISO 15912:2006), which has been technically revised. It also inco
40、rporates the Amendment ISO 15912-1:2006/Amd 1:2011.In this edition, dental pressable-ceramic investment materials are included in the Scope for the first time. These products are intended for the production of ceramic crowns and inlays and, as such, the same requirements as those for an investment p
41、roduct intended for the production of metallic crowns and inlays by casting are relevant (Type 1, according to the classification in this standard).The previous edition contained requirements and test methods that had been developed for discontinued composition specific standards. In recent years pr
42、oducts have been introduced that have other chemistries (for the binder and the refractory phase), specifically to minimize chemical reaction between the mould and the molten casting metallic material. A number of technical changes have been made to enable all dental casting investment products, reg
43、ardless of their composition, to seek compliance with this International Standard and maintains the agreed philosophy that this International Standard should be inclusive, application-driven and not be limited by composition considerations.Where appropriate, aspects of the test procedures have been
44、changed to follow the manufacturers instructions for use. The requirement for thermal dimensional change now takes into account the cooling of some products (after burn-out) to a lower casting temperature. The specification for the dilatometer has been changed for it to be compatible with the heatin
45、g and where relevant, the cooling after burn-out of the product to the casting temperature.The procedure for determining the initial setting time has been revised to harmonize with that present in the latest edition of the standard for dental gypsum products, ISO 6873:2013.1Although substantially ed
46、itorial, there are technical changes.Information for use now requires a statement of the type of refractory phase(s) that is (are) present.EN ISO 15912:2016 (E) DIN EN ISO 15912:2016-08 5 Labelling requirements for products that contain silica have been revised to comply with the current United Nati
47、ons Globally Harmonized System for Classification and Labelling of Chemicals (UN GHS)2and recommendations for silica as a hazardous material.Containers of liquid must be marked to indicate the use to which the liquid is put.EN ISO 15912:2016 (E) DIN EN ISO 15912:2016-08 6 1 ScopeThis International S
48、tandard gives requirements and test methods for determining the compliance of dental casting investment, dental brazing investment, dental pressable-ceramic investment and dental refractory die materials used in the dental laboratory, regardless of the composition of the refractory powder, the composition of the binder, or the particular application.This International Standard classifies such products into types and classes, according to their intended use and the burn-out procedure recommended by
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