SIST EN 12094-12:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vgrajeni gasilni sistemi - Sestavni deli sistemov za gašenje s plinom - 12. del: Zahteve in preskusne metode za pnevmatske alarmne napraveOrtsfeste Brandbekämpfungsanlagen - Bauteile für Löschanlagen mit gasförmigen Löschmitteln - Teil 12: Anforderungen und Prüfverfahren für pneumatische AlarmgeräteInstallations fixes de lutte contre l'incendie - Eléments constitutifs pour systemes d'extinction a gaz - Partie 12: Exigences et méthodes d'essai pour dispositifs pneumatiques d'alarmeFixed firefighting systems - Components for gas extinguishing systems - Part 12: Requirements and test methods for pneumatic alarm devices13.320Alarmni in opozorilni sistemiAlarm and warning systems13.220.10Gašenje požaraFire-fightingICS:Ta slovenski standard je istoveten z:EN 12094-12:2003SIST EN 12094-12:2003en01-maj-2003SIST EN 12094-12:2003SLOVENSKI
STANDARD



SIST EN 12094-12:2003



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12094-12March 2003ICS 13.220.20; 13.320English versionFixed firefighting systems - Components for gas extinguishingsystems - Part 12: Requirements and test methods forpneumatic alarm devicesInstallations fixes de lutte contre l'incendie - Elémentsconstitutifs pour systèmes d'extinction à gaz - Partie 12:Exigences et méthodes d'essai pour dispositifspneumatiques d'alarmeOrtsfeste Brandbekämpfungsanlagen - Bauteile fürLöschanlagen mit gasförmigen Löschmitteln - Teil 12:Anforderungen und Prüfverfahren für pneumatischeAlarmgeräteThis European Standard was approved by CEN on 7 November 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12094-12:2003 ESIST EN 12094-12:2003



EN 12094-12:2003 (E)2ContentspageForeword.3Introduction.51Scope.62Normative references.63Terms and definitions.64Requirements.74.1Compliance.74.2Design.74.3Function at normal temperature.84.4Function at high and low temperature.84.5Functional reliability.84.6Operational reliability.84.7Function in cold and moist atmosphere.84.8Corrosion.84.9Stress corrosion.84.10Vibration.84.11Impact.94.12Documentation.95Test methods.95.1Test conditions.95.2Test samples and order of tests.105.3Compliance.105.4Function at normal temperature.105.5Function at high and low temperature.105.6Functional reliability.115.7Operational reliability.115.8Function in cold and moist atmosphere.115.9Corrosion.115.10Stress corrosion.125.11Vibration (sinusoidal).125.12Impact.136Marking.157Evaluation of conformity.167.1General.167.2Initial type testing.167.3Factory production control (FPC).17Annex ZA (informative)
Clauses of this European Standard addressing the provisions of the EUConstruction Products Directive.20Bibliography.23SIST EN 12094-12:2003



EN 12094-12:2003 (E)3ForewordThis document (EN 12094-12:2003) has been prepared by CEN/TC 191 "Fixed firefighting system", the secretariatof which is held by BSI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by September 2003, and conflicting national standards shall be withdrawn at thelatest by September 2005.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.This part of EN 12094 is one of a number of European Standards prepared by CEN/TC 191 covering componentsfor gas extinguishing systems.They are included in a series of European Standards planned to cover:- gas extinguishing systems (EN 12094);- sprinkler systems (EN 12259:1999+A1 and EN 12845);- powder systems (EN 12416);- explosion protection systems (EN 26184);- foam systems (EN 13565);- hose systems (EN 671);- smoke and heat control systems (EN 12101);- water spray systems1).This European Standard has the general title "Fixed firefighting systems – Components for gas extinguishingsystems" and will consist of the following parts:- Part 1: Requirements and test methods for electrical automatic control and delay devices- Part 2: Requirements and test methods for non-electrical automatic control and delay devices- Part 3: Requirements and test methods for manual triggering and stop devices- Part 4: Requirements and test methods for high pressure container valve assemblies and their actuators- Part 5: Requirements and test methods for high and low pressure selector valves and their actuators for CO2systems- Part 6: Requirements and test methods for non-electrical disable devices for CO2 systems
1)Under preparation.SIST EN 12094-12:2003



EN 12094-12:2003 (E)4- Part 7: Requirements and test methods for nozzles for CO2 systems- Part 8: Requirements and test methods for flexible connectors for CO2 systems- Part 9: Requirements and test methods for special fire detectors- Part 10: Requirements and test methods for pressure gauges and pressure switches- Part 11: Requirements and test methods for mechanical weighing devices- Part 12: Requirements and test methods for pneumatic alarm devices- Part 13: Requirements and test methods for check valves and non-return valves- Part 16: Requirements and test methods for odorizing devices for CO2 low pressure systems- Part 17: Pipe hangers- Part 20: Requirements and test methods for the compatibility of componentsAccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.SIST EN 12094-12:2003



EN 12094-12:2003 (E)5IntroductionIt has been assumed in the preparation of this European Standard that the execution of its provisions is entrustedto appropriately qualified and experienced people.All pressure data in this European Standard are given as gauge pressures in bar, unless otherwise stated.NOTE1 bar = 105 N m-2 = 100 kPa.SIST EN 12094-12:2003



EN 12094-12:2003 (E)61 ScopeThis European Standard specifies requirements and test methods for surface mounted audible alarm devicespowered by pneumatic energy (pneumatic alarm devices) to warn persons in flooding zones of CO2-, Inert Gas- orHalocarbon gas fire extinguishing systems.2 Normative referencesThis European Standard incorporates by dated or undated references, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 60068-2-6:1995, Environmental testing - Part 2: Tests - Test Fc: Vibration (sinusoidal) (IEC 60068-2-6:1995 + Corrigendum 1995).EN 60651:1994, Sound level meters (IEC 60651:1993).ISO 209-1; Wrought aluminium and aluminium alloys - Chemical composition and forms of products - Part 1:Chemical composition3 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply:3.1A-weighted sound levelSound pressure, expressed in dB, which is 20 times the logarithm to base ten of the ratio of the A-weighted soundpressure to the reference pressure of 20 µPa (20 µN/m2). A-weighting characteristics are given in EN 60651:19943.2CO2-high-pressure installationfire extinguishing installation in which the CO2 is stored at ambient temperature. For example, the pressure of theCO2 in storage is pabs = 58,6 bar at 21 °C3.3CO2-low-pressure installationfire extinguishing installation in which the CO2 is stored at low temperature, normally – 19 °C to – 21 °C3.4halocarbon gasextinguishing agent that contains as primary components one or more organic compounds containing one or moreof the elements fluorine, chlorine, bromine or iodine3.5halocarbon gas installationfire extinguishing installation in which the halocarbon gas is stored at ambient temperatureSIST EN 12094-12:2003



EN 12094-12:2003 (E)73.6inert gasnon liquefied gas or mixture of gases which extinguish the fire mainly by reducing the oxygen-concentration in theprotected zone, e.g. Argon, Nitrogen or CO2 or mixtures of these gases3.7inert gas installationfire extinguishing installation in which the inert gas is stored at ambient temperature3.8principal axisline through the geometrical centre of the sound radiation cone, perpendicular to the front surface of the audiblealarm device3.9reference pointpoint where the principal axis of the audible alarm device intersects its mounting surface4 Requirements4.1 ComplianceThe test sample shall comply with the documentation (drawings, parts lists, description of functions, operating andinstallation instructions) when evaluated in accordance with 5.3.4.2 DesignComponents with passages in the gas flow with free flow cross sections £ 7 mm2 shall be permanently equippedwith a filter. The filter shall be made of corrosion resistant metal.If mesh filters are used, the unrestricted filter surface area shall be at least five times the sum of the gas flow areasin the component and the mesh of the filter shall be between 0,5 times and 0,8 times the smallest dimension of anypassage in the gas flow.If sintered metal filters are used, the surface area of the filter in the gas flow divided by the porosity shall be at leastfive times the sum of the gas flow areas in the component.The manufacturer shall specify:- A-weighted sound level over the pressure range;- pressure range;- type of supply gas;- maximum flow rate of supply gas in the specified pressure range;- minimum operating temperature: - 20 °C or lower;- maximum operating temperature: + 50 °C or higher.Where the manufacturer specifies extended temperature ranges, these temperatures shall be used for therequirement in 4.4 and the test in 5.5.SIST EN 12094-12:2003



EN 12094-12:2003 (E)84.3 Function at normal temperatureThe components shall generate an A-weighted sound level between 90 dB(A) and 120 dB(A) at a distance of 1 m,for at least 30 min, when tested in accordance with 5.4.In this test the flow rate shall not exceed the value given by the manufacturer.4.4 Function at high and low temperatureComponents shall generate an A-weighted sound level not more than ± 15 dB(A) different from their sound level atnormal temperature, when tested in accordance with 5.5 at the minimum and maximum specified operatingtemperatures.In this test the flow rate shall not exceed the value given by the manufacturer.4.5 Functional reliabilityComponents shall generate an A-weighted sound level between 90 dB(A) and 120 dB(A) at a distance of 1 m,when tested in accordance with 5.6 with the minimum and maximum specified supply pressureIn this test the flow rate shall not exceed the value given by the manufacturer.4.6 Operational reliabilityThe sound level of the components shall vary not more than ± 6 dB(A), when tested for 100 h in accordance with5.7.4.7 Function in cold and moist atmosphereComponents shall generate an A-weighted sound level not more than ± 15 dB(A) different from their sound level atnormal temperature, when tested in accordance with 5.8.4.8 CorrosionComponents shall generate an A-weighted sound level between 90 dB(A) and 120 dB(A) at a distance of 1 m, forat least 5 min, when tested in accordance with 5.4 after being subjected to corrosive atmosphere in accordancewith 5.9.4.9 Stress corrosionAny copper alloy part used in the component shall not crack, when tested as described in 5.10.4.10 VibrationThe components shall show no sign of damage and shall generate an A-weighted sound level between 90 dB(A)and 120 dB(A) at a distance of 1 m, for at least 5 min, when tested in accordance with 5.4 after being subjected tovibration in accordance with 5.11.During vibration the components shall generate a sufficient sound level.SIST EN 12094-12:2003



EN 12094-12:2003 (E)94.11 ImpactComponents shall show no sign of damage which could impair proper operation and shall generate an A-weightedsound level between 90 dB(A) and 120 dB(A) at a distance of 1 m, for at least 5 min, when tested in accordancewith 5.4 after being subjected to an impact in accordance with 5.12.4.12 Documentation4.12.1The manufacturer shall prepare and maintain documentation.4.12.2The manufacturer shall prepare installation and user documentation, which shall be submitted to the testingauthority together with the test sample(s). This documentation shall comprise at least the following:a) a general description of the component, including a list of its features and functions;b) a technical specification including:1) the information mentioned in 4.2;2) sufficient information to permit an assessment of the compatibility with other components of the system (ifapplicable e.g. mechanical, electrical or software compatibility);c) installation instructions including mounting instructions;d) operating instructions;e) maintenance instructions;f) routine testing instructions, if appropriate.4.12.3The manufacturer shall prepare design documentation, which shall be submitted to the testing authoritytogether with the test sample(s). This documentation shall include drawings, part lists, block diagrams (ifapplicable), circuit diagrams (if applicable) and a functional description to such an extent that compliance with thisEuropean Standard may be checked and that a general assessment of the design is made possible.5 Test methods5.1 Test conditionsThe components shall be assembled for test as specified in the documentation. The tests shall be carried out at atemperature of (25 ± 10) °C, except when otherwise specified for a particular test.The tolerance for all test parameters is 5 %, unless otherwise stated.SIST EN 12094-12:2003



EN 12094-12:2003 (E)105.2 Test samples and order of testsFor the tests three samples are needed. The order of tests is given in Table 1.Table 1 — Order of testsTest methodTest order forSample ASample BSample C5.3Compliance1115.4Function at normal temperature2/72/52/45.5Function at high and low temperature4--5.6Functional reliability3--5.7Operational reliability-3-5.8Function in moist, cold atmosphere5--5.9Corrosion-4-5.10Stress corrosion8--5.11Vibration6--5.12Impact--35.3 ComplianceThis test relates to the requirements of 4.1.A visual and measurement check shall be made to determine whether the test sample corresponds to thedescription in the drawings, parts lists, description of functions, operating and installation instructions.5.4 Function at normal temperatureThis test relates to the requirements of 4.3, 4.8, 4.10 and 4.11.The test sample shall be operated in an anechoic acoustic measurement chamber at its mean supply pressure.At a radius of 1 m from the reference point the sound level shall be measured on the horizontal plane of thecomponent in its designed position at 30° intervals through a semi-circular arc (- 90° to 90° from the principal axis)centred at the reference point of the component.The duration of the test shall be measured and the flow rate determined by mass or pressure loss as applicable.5.5 Function at high and low temperatureThis test relates to the requirements of 4.4.The test sample shall be connected to a gas supply with a storage temperature of (20 ± 5) °C.The test sample shall be installed in a temperature chamber. A measuring point for A-weighted sound level shall beinstalled in the temperature chamber at a distance of 1 m from the reference point. The A-weighted sound levelshall first be measured at (20 ± 5) °C.The test sample shall then be conditioned for at least 4 h at the intended test temperature, i.e. at- minimum specified operating temperature with an accuracy of (02-) °C;SIST EN 12094-12:2003



EN 12094-12:2003 (E)11- maximum specified operating temperature with an accuracy of (30+) °C.The component shall be operated at each temperature in the temperature chamber for at least 5 min. The A-weighted sound level shall be measured.The duration of the test shall be measured and the flow rate shall be determined.5.6 Functional reliabilityThis test relates to the requirements of 4.5, 4.8 and 4.11.The component shall be operated for at least 30 min in an anechoic acoustic measurement chamber in twoseparate test cycles, once at minimum supply pressure and once at maximum supply pressure.At a radius of 1 m from the reference point the sound level shall be measured on the horizontal plane of thecomponent in its designed position at 30° intervals through a semi-circular arc (-90° to 90° from the principal axis)centred at the reference point of the component.The duration of the test shall be measured and the flow rate determined.5.7 Operational reliabilityThis test relates to the requirements of 4.6.The component shall be operated in an anechoic acoustic measurement chamber at its mean supply pressure for100 h.The sound level shall be measured continuously at a distance of 1 m from the reference point on the principal axis.5.8 Function in cold and moist atmosphereThis test relates to the requirements of 4.7.The test sample shall be installed in a climatic chamber. A measuring point for sound level shall be installed in theclimatic chamber at a distance of 1 m from the reference point on the principal axis. The sound level shall bemeasured at (25 ± 10) °C temperature conditions and minimum supply pressure.The test sample shall be conditioned for at least 4 h at (5 ± 2) °C and (90 ± 2) % relative humidity.The component shall be operated in the climatic chamber at minimum supply pressure. The sound level shall bemeasured.5.9 CorrosionThis test relates to the requirements specified in 4.8.A specimen shall be suspended freely in its normal installation attitude.The test set-up comprises a container 5 l in volume, made of heat-resistant glass and with a corrosion-resistantcover which is shaped to prevent condensate dripping onto the specimen. If a container 10 l in volume is used, thequantities of chemicals given below shall be doubled.The container shall be heated electrically and the side walls shall be cooled with water. A thermostat shall regulatethe heating so as to maintain a temperature of approximately 45 °C inside the container. During testing water shallpass through a cooling coil wrapped around the container; it shall flow fast enough that its temperature at thedischarge point is below 30 °C.SIST EN 12094-12:2003



EN 12094-12:2003 (E)12The combination of heating and cooling shall be designed to ensure that vapours will condense on the surface ofthe specimen. The sulphur dioxide atmosphere shall be generated in the 5-litre container with a solution of 20 g ofsodium thiosulphate (Na2S2O3 x 5H2O) in 500 cm3 of distilled water, to which 20 cm3 of dilute sulphuric acid isadded daily. The dilute sulphuric acid shall comprise 128 cm3 of one molar sulphuric acid (H2SO4) dissolved in 1 lof distilled water. The test specimen shall be removed from the container after 8 days; the container shall becleaned. Then the procedure described above shall be repeated for a further period of 8 days.After a total of 16 days, the specimen shall be removed from the container and shall be dried for seven days at atemperature of (20 ± 5) °C at maximum relative humidity of 70 %.5.10 Stress corrosionThis test relates to the requirements specified in 4.9.The test specimen shall be degreased and shall then be exposed for ten days to a moist atmosphere of ammoniaand air, in a glass container of 10 l to 30 l in volume.The aqueous ammonia solution shall have a specific weight of 0,94 kg dm-3. The specimen shall be positioned(40 ± 5) mm above the level of the liquid. The container shall be filled with 10 cm3 of the solution for each litre ofcontainer volume, to give an atmosphere which comprises approximately 35 % ammonia, 5 % water vapour and60 % air. The test shall be conducted at atmospheric pressure and at a temperature of (34 ± 2) °C. A capillary tubeshall be provided to equalise internal and external pressures.After conditioning, the specimen shall be cleaned and dried and subjected to careful visual examination.5.11 Vibration (sinusoidal)This test relates to the requirements specified in 4.10.The test sample shall be attached to a vibration table using fixing materials provided by the manufacturer and shallbe connected to a power supply.The test apparatus and procedure shall be as described in EN 60068-2-6:1995, Test Fc:- Frequency range:10 Hz to 150 Hz- Acceleration amplitude 10 to 50 Hz:1,0 gn- Acceleration amplitude 50 to 150 Hz:3,0 gn- Sweep rate:1 octave per 30 minutes- Number of sweeps:0,5 per axis- Number of axes:3 mutually perpendicularDuring and after the test the sample shall operate correctly and shall show no sign of damage. No deterioration ordetachment of parts shall occur. The sample shall be able to function after the vibration test.SIST EN 12094-12:2003



EN 12094-12:2003 (E)135.12 Impact5.12.1 GeneralThis test relates to the requirements of 4.11.5.12.2 Test procedureThe test apparatus shall consist of a swinging hammer incorporating a rectangular-section aluminium alloy head(Aluminium alloy AlCu4SiMg complying with ISO 209-1, solution treated and precipitation treated condition) with theplane impact face chamfered to an angle of (60 ± 1) ° to the horizontal, when in the striking position. A suitableapparatus is described in 5.12.3.The specimen shall be rigidly mounted to the apparatus by its normal mounting means and shall be positioned sothat it is struck by part of the upper half of the impact face of the hammer (i.e. above the centre line), when thehammer is in the vertical position (i.e. when the hammer-head is moving horizontally). The direction of impactrelative to the specimen shall be chosen as the most likely to impair the normal functioning of the specimen.A horizontal blow shall be delivered to the specimen at an impact energy level of (1,9 ± 0,1) J by a hammer velocityof (1,5 ± 0,125) m s-1.5.12.3 Test apparatusThe tolerance for all dimensions in this test apparatus shall be 0,5 mm, unless otherwise specified.The test apparatus (see Figure 1) shall consist essentially of a swinging hammer comprising a rectangular sectionhead (striker), with a chamfered impact face, mounted on a tubular steel shaft. The hammer shall be fixed into asteel boss, which runs on ball bearings on a fixed steel shaft mounted in a rigid steel frame, so that the hammercan rotate freely around the axis of the fixed shaft. The design of the rigid frame shall be such as to allow completerotation of the hammer assembly when the specimen is not present.The striker shall be of dimensions 76 mm wide, 50 mm deep and 94 mm long (overall dimensions) and shall bemanufactured from aluminium alloy AlCu4SiMg according to ISO 209-1, solution treated and precipitation treatedcondition. It shall have a plane impact face chamfered at (60 ± 1)° to the long axis of the head. The tubular steelshaft shall have an outside diameter of (25 ± 0,1) mm with walls (1,6 ± 0,1) mm thick.The striker shall be mounted on the shaft so that its long axis is at the radial distance of 305 mm from the axis ofrotation of the assembly, the two axes being mutually perpendicular. The central boss shall be 102 mm in externaldiameter and 200 mm long and shall be mounted coaxially on the fixed steel pivot shaft, which is approximately25 mm in diameter; however the precise diameter of the shaft will depend on the bearings used.Diametrical
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