YY 0271.1-2016Dentistry—Water-based cements - Part 1: Powder/liquid acid-base cements (English PDF)

Foreword

The technical content of this standard is mandatory.

YY 0271 "Dental Water-based Water Pavilion" consists of two parts.

- Part 1. powder/liquid acid and alkali;

- Part 2. Resin modified. This part is part 1 of YY 0271.

This part is drafted in accordance with the rules given in GB/T 1.1-2009.

This section replaces YY 0271.1-2009 "Dental Water-based Cementing Part 1. Powder/Acid-Base Alkaline".

The main technical changes in this section and YY 0271.1-2009 are as follows.

--- increase the X-ray resistance of the test and requirements;

- the requirements of the manual reconcile the requirements of the requirements of the cement and the cements of the cement factory, --- increase the opacity of the test and requirements;

--- increase the color of the test and requirements;

- arsenic content test method based on the "by the People's Republic of China Pharmacopoeia (2005 edition) in the method" to "in accordance with the ISO 2590 method (Arbitration Act) or by the People's Republic of China Pharmacopoeia (2010 edition) method of testing arsenic content ";

- laboratory analysis of water, from "deionized water or distilled water" to ISO 9917-1.:2007 ISO 3696. 1987, Level 3 water;

--- Added reference.

This part of the modified use of ISO 9917-1.:2007 "dental water-based cement Pavilion Part 1. powder/liquid acid alkali cement." The main differences between this section and ISO 9917-1.:2007.

- delete 8.5a in ISO 9917-1.:2007) and its contents;

- Appendix F is split into Appendix F and Appendix G, Appendix F becomes informative, and the serial numbers of the appendix are extended in sequence;

The test method of arsenic content has increased the content of the method according to the method of the Pharmacopoeia of the People's Republic of China (2010 edition).

In this part of the normative reference to the international documents have a consistent correspondence between the following documents.

Analysis of laboratory water specifications and test methods (ISO 3696. 1987, MOD); GB/T 6682-2008;

Determination of color stability of dental materials (ISO 7491.:2000, IDT) YY/T 0631-2008.

Introduction

This section does not contain qualitative and quantitative requirements for the assessment of biological hazards. When evaluating possible biological or toxicological hazards, Use ISO 7405 and ISO 10993-1.

1 Scope

This part of YY 0271 specifies the technical requirements for permanent cementing, bottoms/lining and repair of dental powder/liquid acid base And test methods. This part of YY 0271 is also suitable for hand-blended water-based cements or mechanically tuned capsules.

This section sets limits for each performance as it is intended for use as a cement, bottom or lining or repair material. Headquarters Points do not apply to resin-modified water-based cement.

2 Normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this document. For undated references, the latest edition (including all modifications) applies to this document.

ISO 2590 General method for the determination of arsenic content Diethyldithiocarbamate photometric method (Generalmethodforthe determinationofarsenic-silverdiethyldithiocarbamatephotometricmrthod) A period of time from the time of reconciliation (if required), during which time the engine can be operated and has no adverse effect on its performance.

ISO 3665.:1996 Photography-Intra-oraldentalra-diographicfilm-Specification

ISO 3696 Analytical laboratory water specifications and test methods (Waterforanalyticallaboratoryuse-Specification andtestmethods)

ISO 7491 Determination of color stability of dental materials (Dentalmaterials-Determination ofcolourstability)

3 Terms and definitions

The following terms and definitions apply to this document.

4 Classification