BS EN ISO 3822-2-1996 Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations Mounting and operating conditions for draw-off t.pdf

1、BRITISH STANDARD BS EN ISO 3822-2:1996 Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations Part 2: Mounting and operating conditions for draw-off taps and mixing valves The European Standard EN3822-2:1995 has the status of a BritishStandard I

2、CS 17.140.20BSENISO3822-2:1996 This BritishStandard, having been prepared under the directionof the Health and Environment Sector Board, waspublished under the authorityof the Standards Boardand comes into effect on 15June1996 BSI 01-2000 The following BSI references relate to the work on this stand

3、ard: Committee reference EH/1 Draft for comment94/501654DC ISBN 0 580 25787 8 Committees responsible for this BritishStandard The preparation of this BritishStandard was entrusted to Technical Committee EH/1, Acoustics, upon which the following bodies were represented: Association of Consulting Engi

4、neers British Broadcasting Corporation British Occupational Hygiene Society British Telecommunications plc Department of the Environment (Building Research Establishment) Department of Health Department of Trade and Industry (National Physical Laboratory) Health and Safety Executive Institute of Aco

5、ustics Institute of Occupational Hygienists Institute of Sound and Vibration Research Institution of Electrical Engineers Royal Institute of British Architects Society of Environmental Engineers The following bodies were also represented in the drafting of the standard, through subcommittees and pan

6、els: Access Flooring Association Aggregate Concrete Block Association Association of Building Component Manufacturers Association of Building Engineers Association of Manufacturers of Domestic Unvented Supply Systems Equipment Autoclaved Aerated Concrete Products Association Brick Development Associ

7、ation British Bathroom Council British Ceramic Research Ltd. British Precast Concrete Federation Ltd. Calcium Silicate Brick Association Ltd. Concrete Block Association Concrete Society Gypsum Products Development Association Heriot-Watt University Hevac Association Institute of Physics Sound and Co

8、mmunications Industries Federation Suspended Ceilings Association Amendments issued since publication Amd. No. Date CommentsBSENISO3822-2:1996 BSI 01-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 0 Introduction 3 1 Scope 3 2 Normative references 3 3 M

9、ounting 3 4 Test procedure 4 5 Test report 5 List of references Inside back coverBSENISO3822-2:1996 ii BSI 01-2000 National foreword This BritishStandard has been prepared by Technical Committee EH/1 and is the English language version of EN ISO3822-2:1995 Acoustics Laboratory tests on noise emissio

10、n from appliances and equipment used in water supply installations Part2: Mounting and operating conditions for draw-off taps and mixing valves published by the European Committee for Standardization (CEN). It supersedes BS6864-2:1987, which is withdrawn. It is technically equivalent to ISO3822-2:19

11、95 Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations Part2: Mounting and operating conditions for draw-off taps and mixing valves published by the International Organization for Standardization (ISO), which supersedes the standard ISO3822-2

12、1984. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication refer

13、red to Corresponding BritishStandard ISO7-1:1994 BS21:1985 Specification for pipe threads for tubes and fittings where pressure-tight joints are made on the threads (metric dimensions) ISO3822-1:1983 BS6864 Laboratory tests on noise emission from appliances and equipment intended for use in water su

14、pply installations Part1:1987(1993) Method for measurement Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theENISOtitle page, pages2 to6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendmen

15、ts incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO3822-2 March 1995 ICS 17.140.20 Descriptors: Acoustics, water supply, draw-offtaps, tests, acoustic tests, determination, noise (sound) English version Aco

16、ustics Laboratory tests on noise emission from appliances and equipment used in water supply installations Part2: Mounting and operating conditions for draw-off taps and mixing valves (ISO3822-2:1995) Acoustique Mesurage en laboratoire du bruit mis par les robinetterie et les quipements hydrauliques

17、 utiliss dans les installations de distribution deau Partie2: Conditions de montage et de fonctionnement des robinets de puisage et des robinetteries (ISO3822-2:1995) Prfung des Geruschverhaltens von Armaturen und Gerten der Wasserinstallation im Laboratorium Teil2: Anschlu und Betriebsbedingungen f

18、r Auslaufarmaturen und fr Mischbatterien (ISO3822-2:1995) This European Standard was approved by CEN on1995-01-04. 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

19、alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by t

20、ranslation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxem

21、bourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in a

22、ny form and by any means reserved in all countries to CEN and its members. Ref. No. EN3822-2:1995 EENISO3822-2:1995 BSI 01-2000 2 Foreword The text of the International Standard ISO3822-2:1995 has been prepared by Technical Committee CEN/TC126, Acoustic properties of building components and of build

23、ings, in collaboration with ISO/TC43, Acoustics. It has been approved by CEN on1994-11-28 as a European Standard. 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 September1995, and conflicting nat

24、ional standards shall be withdrawn at the latest by September1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands,

25、Norway, Portugal, Spain, Sweden, Switzerland, UnitedKingdom.ENISO3822-2:1995 BSI 01-2000 3 0 Introduction The method of measurement for laboratory tests on noise emission from appliances and equipment used in water supply installations is specified in EN ISO3822-1. This part of EN ISO3822 gives deta

26、iled descriptions for mounting and operating draw-off taps and mixing valves in such laboratory tests. These taps and mixing valves are for use with cold and/or hot water in buildings (for sinks, wash-basins, baths, etc.) or next to buildings (forexample for garden use). Draw-off taps and mixing val

27、ves are the most common kind of appliance used in water supply installations. 1 Scope This part of EN ISO3822 specifies the mounting and operating conditions to be used for draw-off taps and mixing valves when measuring noise emission resulting from water flow. The procedures described are for gener

28、al use for all types of draw-off taps and mixing valves of conventional design, with a recommended flow pressure range of0,1MPa to0,5MPa 1) . The mounting and operating conditions apply to draw-off tap and mixing valve assemblies including any inlet or outlet mounting or installation unions, elbows,

29、 adaptors, etc., but excluding interchangeable outlet accessories such as aerators, shower hoses, shower heads, flow straighteners, etc. These outlet accessories are replaced by standardized low-noise flow resistances. When the outlet accessories mentioned above are neither interchangeable nor remov

30、able, then the tests are carried out with them in place. Interchangeable outlet accessories are tested separately according to procedures specified in other parts of EN ISO3822. Thermostatic mixing valves, intended for use with more than one independent draw-off tap, and bidet valves with a direct o

31、utlet into an interior part of the body of the bidet are not regarded as conventional draw-off taps or mixing valves and are not covered by this part of EN ISO3822. Similarly, electrically operated valves are regarded as combined devices (solenoid valve and outlet) and are not covered by this part o

32、f EN ISO3822. The test procedures cover a range of flow pressures between0,1MPa and0,5MPa. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the

33、publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. ISO7-1,

34、 Pipe threads where pressure-tight joints are made on the threads Part1: Designation, dimensions and tolerances. ISO49, Malleable cast iron fittings threaded to ISO7-1. EN ISO3822-1, Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations Part1:

35、Method of measurement. EN ISO3822-4, Acoustics Laboratory tests on noise emission from appliances and equipment used in water supply installations Part4: Mounting and operating conditions for special appliances. 3 Mounting 3.1 General Draw-off taps and mixing valves shall be connected to the test pi

36、pe and positioned according to the normal position of the tap or mixing valve in use. 3.2 Fitting to the test pipe The test pipe shall have an external thread R1 in accordance with ISO7-1, and shall end with a galvanized union, taper seat1, U11, in accordance with ISO49. 3.3 Mounting of draw-off tap

37、s and mixing valves with screwed connections Depending on whether the position of the connection is horizontal or vertical, draw-off taps and mixing valves with screwed connections shall be connected to the test pipe by means of a galvanized long sweep bend1, G1 or G4, and/or a galvanized bushing N4

38、 patternI orII, in accordance with ISO49. A galvanized socket, reducing M2, in accordance with ISO49, may be connected to the union or to the bend. 1) 1MPa=10barENISO3822-2:1995 4 BSI 01-2000 3.4 Mounting of draw-off taps and mixing valves fitted with pipe connections Draw-off taps and mixing valve

39、s without screwed connections shall be mounted with couplings chosen such that rigid and watertight connections are assured. These couplings may be made either by soldering a nipple onto the pipe and using a cap nut or by means of a compression fitting. The coupling shall be made so that no air is t

40、rapped therein. 3.5 Mounting of mixing valves with two inlets Mixing valves with two inlets shall be connected to the test pipe by means of a twin outlet (see EN ISO3822-1), as specified in3.3 and3.4. 4 Test procedure 4.1 General test conditions 4.1.1 General Draw-off taps and mixing valves shall be

41、 tested by the method specified in EN ISO3822-1. 4.1.2 Water temperature Appliances, such as mixing valves, which are normally operated with both hot and cold water shall be tested with water at a temperature not exceeding25 C at both inlets. 4.1.3 Outlets Appliances with more than one outlet (e.g.b

42、ath and shower appliances) shall be tested separately for each outlet. Appliances with provision for connecting interchangeable outlet accessories, such as aerators, shower hoses, shower heads, flow straighteners, etc., shall be tested with a low-noise flow resistance fitted in place of the accessor

43、y. This low-noise flow resistance shall comply with Annex A of EN ISO3822-4:1985 and shall be connected by means of an adaptor, if necessary. This adaptor shall comply with Annex B of EN ISO3822-4:1985. 4.1.4 Discharge The water discharged from the appliance shall be disposed of quietly (see EN ISO3

44、822-1). The arrangement for disposing of the discharged water shall in no way influence the flow through the appliance. 4.1.5 Flow adjusters NOTEIn some types of draw-off taps and mixing valves, especially mixing taps with sequential control, devices known as flow adjusters may be incorporated in th

45、e appliance. These devices serve to adjust the pressure loss in the tap to adapt the appliance to its proper use. When a flow adjuster is incorporated in an appliance to be tested, the manufacturer of the appliance shall provide information on the settings of the flow adjuster for operation at flow

46、pressures of0,3MPa and0,5MPa. At the setting advised for0,3MPa, the procedures specified in4.2, 4.3 or4.4 shall be carried out at flow pressures of0,3MPa and0,5MPa. At the setting advised for0,5MPa, the same procedures shall be carried out at flow pressures of0,1MPa,0,2MPa,0,3MPa,0,4MPa and0,5MPa. 4

47、1.6 Test pressures Except where flow adjusters are incorporated in the appliance as mentioned in4.1.5, the procedures specified in4.2, 4.3 or4.4 shall be carried out at flow pressures of0,3MPa and0,5MPa. 4.2 Procedure for conventional draw-off taps with one inlet 4.2.1 Open the appliance fully. Adj

48、ust the water flow pressure to the selected value and keep it constant throughout the following steps. 4.2.2 Measure the water flow rate. 4.2.3 Determine the sound pressure level in the test room. 4.2.4 Slowly close the appliance to the fully closed position. Determine the maximum sound pressure lev

49、el in the test room during this closing action and measure the water flow rate at which this maximum occurs. 4.3 Procedure for mixing valves with two inlets 4.3.1 Procedure for mixing valves with similar independent controls for hot and cold water 4.3.1.1 Carry out the procedure specified in4.2 for each control separately. 4.3.1.2 Open both controls fully and then slowly close the hot control to locate a maximum sound pressure level. At this point, slowly close the cold control and locate a possible further maximum sound pressure level. Determine