BS EN ISO 7494-2:2022

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Dentistry. Stationary dental units and dental patient chairs – Air, water, suction and wastewater systems

Published By	Publication Date	Number of Pages
BSI	2022	40

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Categories: 11.060.20 - Dental equipment, BSI

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Description

This document specifies requirements and test methods for stationary dental units concerning a) the properties of stationary dental unit connections to the compressed air supply, water supply, suction supply, and wastewater drain plumbing, b) the materials, design, and construction of the compressed air and water system within the stationary dental unit, c) the quality for incoming water and air, d) the performance of stationary dental unit suction system, and e) the air, water, suction and wastewater properties of stationary dental unit connections to the interfaces to dental handpieces. This document also specifies requirements for instructions for use and technical description. This document does not specify requirements or test methods for the effectiveness of stationary dental unit waterline biofilm control. NOTE Test methods for the effectiveness of stationary dental unit waterline biofilm control are specified in ISO 16954. This document is only applicable to stationary dental units that are not used for oral surgery treatment requiring sterile air and water supplies. Amalgam separators are not included in this document.

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PDF Pages	PDF Title
2	National foreword
4	European foreword
7	Foreword
9	1 Scope 2 Normative references
10	3 Terms and definitions
12	4 Classification 4.1 Classification of suction systems 4.2 Classification of suction air flow rate 5 Requirements 5.1 Connections from the stationary dental unit to dental handpieces 5.1.1 General 5.1.2 Powered scaler
13	5.1.3 Multifunction handpiece 5.1.4 Handpiece and motor 5.1.5 Powder jet handpiece
14	5.1.6 Simultaneous use of more than one dental handpiece 5.2 Supply connections to the stationary dental unit
16	5.3 Water and wastewater systems 5.3.1 General 5.3.2 Incoming water 5.3.3 Materials used for construction of procedural water systems within the stationary dental unit
17	5.3.4 Backflow prevention device for stationary dental units connected to the external drinking water supply 5.3.5 Cuspidors 5.3.6 Water venturi 5.3.7 Particle filter 5.3.8 Bacterial filter 5.3.9 Bottled water system supplying procedural water or solution 5.3.10 Retraction
18	5.3.11 Treatment method for biofilm 5.3.12 Water sampling connection point
19	5.3.13 Wastewater drain connection 5.4 Air system 5.4.1 General 5.4.2 Incoming dental air 5.4.3 Particle filters 5.4.4 Bacterial filters
20	5.5 Stationary dental unit suction systems 5.5.1 General 5.5.2 Maximum suction pressure 5.5.3 Suction pressure head loss 5.5.4 Configuration of cannula connectors and cannula
22	5.5.5 Operating hoses with cannula connectors 5.5.6 Solids filter 5.5.7 Air separator 5.5.8 Stationary dental unit suction source connection point 5.6 Test report 6 Sampling 7 Measurement and test methods 7.1 Visual inspection 7.1.1 Visual inspection of device 7.1.2 Visual inspection of documentation or test reports
23	7.2 Dental handpiece connection test 7.2.1 Apparatus 7.2.2 Procedure
25	7.3 Systems directly connected to external drinking water supply test 7.4 Cuspidor test 7.5 Particle filter test 7.6 Retraction test
26	7.7 Stationary dental unit suction systems test 7.7.1 General 7.7.2 Static suction pressure test
27	7.7.3 Suction pressure head loss test
28	7.8 Treatment method for the prevention or inhibition of biofilm formation 7.9 Treatment method for biofilm removal 8 Instructions for use
29	9 Technical description
31	Annex A (informative) Example of schematic diagram of components and connections in a stationary dental unit
33	Annex B (informative) Dental handpiece connection test jig
34	Annex C (informative) Test sequence
39	Bibliography

Additional information

Status	Definitive
Pages	40
Publication Date	2022-10-19
ISBN	978 0 539 02609 2
Standard Number	BS EN ISO 7494-2:2022
Title	Dentistry. Stationary dental units and dental patient chairs – Air, water, suction and wastewater systems
Identical National Standard Of	ENISO 7494-2, ISO 7494-2
Replaces	BS EN ISO 7494-2:2015
Descriptors	Dentistry, Ducts (building services), Dental equipment, Dimensions, Waste disposal (buildings), Suction apparatus (medical), Compressed air, Health and welfare facilities, Water supply (buildings), Energy supply systems (buildings), Layout, Pipes
Publisher	BSI
Committee	CH/106
ICS Codes	11.060.20 - Dental equipment

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BS EN ISO 7494-2:2022

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