BS EN ISO 15912:2016
$167.15
Dentistry. Refractory investment and die material
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 36 |
This International Standard 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 the manufacturer.
It also gives requirements for marking, labelling and manufacturer’s instructions.
It specifies requirements for the essential physical and mechanical properties of the products and the test methods to be used for determining them.
NOTE 1 Compliance with all of the requirements presented in Clause 5 may not be necessary for some products, and a requirement might not be applicable to a product with a particular binder chemistry or be intended for an application in which that requirement is irrelevant. When this is the case, a clear statement to this effect is given according to Clause 5.
NOTE 2 A specific quantitative requirement for setting expansion is not included in this International Standard. If the setting expansion of gypsum-bonded investment is measured, then the procedure given in ISO 6873[1] can be considered — a procedure not recommended, however, for investment materials with other binders.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | European foreword Endorsement notice |
| 7 | Foreword |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | 4 Classification 5 Requirements 5.1 General 5.2 Material consistency and freedom from contamination 5.3 Fluidity |
| 12 | 5.4 Initial setting time 5.5 Compressive strength 5.6 Linear thermal dimensional change 5.7 Adequacy of expansion of Type 1 and Type 2 materials 6 Sampling, test conditions and mixing 6.1 Sampling 6.2 Test conditions |
| 13 | 6.3 Mixing 6.3.1 Apparatus 6.3.2 Procedure 7 Test methods 7.1 Material consistency and freedom from contamination 7.1.1 Test procedure 7.1.2 Test report 7.2 Fluidity 7.2.1 Apparatus |
| 14 | 7.2.2 Number of test-pieces 7.2.3 Test procedure 7.2.4 Evaluation of results 7.2.5 Test report |
| 15 | 7.3 Initial setting time 7.3.1 Apparatus |
| 17 | 7.3.2 Procedure 7.3.3 Number of determinations |
| 18 | 7.3.4 Evaluation of results 7.3.5 Test report 7.4 Compressive strength 7.4.1 Apparatus 7.4.2 Number of test-pieces |
| 19 | 7.4.3 Preparation of test-pieces 7.4.4 Test procedure |
| 20 | 7.4.5 Evaluation of results 7.4.6 Test report 7.5 Linear thermal dimensional change 7.5.1 Apparatus |
| 21 | 7.5.2 Number of test-pieces 7.5.3 Preparation of the test-piece |
| 22 | 7.5.4 Test procedure for the measurement of linear thermal expansion of Types 1, 2 and 3 products |
| 23 | 7.5.5 Test procedure for the measurement of linear thermal dimensional changes of a Type 4 product 7.5.6 Evaluation of results |
| 24 | 7.5.7 Test report 7.6 Adequacy of expansion of Type 1 and Type 2 products 7.6.1 General |
| 25 | 7.6.2 Type 1 and Type 2 products intended for casting of dental metallic materials |
| 26 | 7.6.3 Type 1 products intended for dental pressable-ceramic products |
| 28 | 7.6.4 Evaluation of results 7.6.5 Test report 8 Manufacturer’s instructions 8.1 General 8.2 Information for use |
| 29 | 8.3 Physical properties |
| 30 | 8.4 Safety labelling and instructions for a product containing silica 9 Marking 9.1 General 9.2 Powder container 9.2.1 Outer container |
| 31 | 9.2.2 Individual packets 9.3 Liquid container 10 Packaging 10.1 Powder |
| 32 | 10.2 Liquid |
| 33 | Bibliography |
