BS EN 60155:1995:2007 Edition
$142.49
Glow-starters for fluorescent lamps
| Published By | Publication Date | Number of Pages |
| BSI | 2007 | 28 |
Specifies general, safety and performance requirements.
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| PDF Pages | PDF Title |
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| 1 | BRITISH STANDARD BS EN 60155:1995 IEC 155:1993 Glow-starters for fluorescent lamps |
| 2 | This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 July 1995 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee CPL/34/1, Lamps, to Subcommittee CPL/34/1/6. Discharge lamps (including starters), upon which the following bodies were represented: British Lighting Association for the Preparation of Standards (BRITLAPS) British Sign Association Chartered Institution of Building Services Engineers Consumer Policy Committee of BSI Department of Transport (Highways Agency) Institution of Lighting Engineers Lighting Industry Federation |
| 3 | EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 60155 Descriptors: Starter, fluorescent lamp, starting test, endurance test, deactivated lamp, type test, marking English version Glow-starters for fluorescent lamps (IEC 155:1993) This European Standard was approved by CENELEC on 1994-12-06; CENELEC members are bound to comply with the CEN/CENELEC Internal … Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by tran… CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. |
| 4 | The text of the International Standard IEC 155:1993, prepared by SC 34A, Lamps, of IEC TC 34, Lamps and related equipment, was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 60155 on 1994-12-06 without any modification. The following dates were fixed: For products which have complied with EN 60155:1989 and its amendment A2:1993 before 1995-12-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 2000-12-01. This standard is to be used in conjunction with EN 60081:1989, EN 60901:1990 and EN 60921:1991. Annexes designated normative are part of the body of the standard. In this standard, Annex A, Annex B and Annex ZA are normative. Annex ZA has been added by CENELEC. The text of document 34A/586/DIS, future amendment 1 to IEC 155:1993, prepared by SC 34A, Lamps, of IEC TC 34, Lamps and related… The following dates were fixed: For products which have complied with EN 60155:1995 before 1996-0-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 2001-09-01. Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex ZA is normative and Annex C is informative. Annex ZA has been added by CENELEC. The text of document 34A/1174/FDIS, future amendment 2 to IEC 60155:1993, prepared by SC 34A, Lamps, of IEC TC 34, Lamps and rel… The following dates were fixed: The text of amendment 2:2007 to the International Standard IEC 60155:1993 was approved by CENELEC as an amendment to the European Standard without any modification. |
| 7 | Introduction This standard for interchangeable glow-starters for fluorescent lamps comprises two sections: Section 1 describes the general re… The additional requirements with which glow-starters for use in class II luminaires shall comply are specified in Annex B. 1 Scope This standard specifies interchangeable glow-starters used with pre-heat type fluorescent lamps, hereafter called “starters”. Section 1 specifies the general and safety requirements with which starters shall comply. Section 2 specifies the performance. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this Intern… IEC 81:1984, Tubular fluorescent lamps for general lighting service. IEC 400:1991, Lampholders for tubular fluorescent lamps and starterholders. IEC 598, Luminaires. IEC 695-2-1:1991, Fire hazard testing. Part 2: Test methods – Section 1: Glow-wire test and guidance. IEC 901:1987, Single-capped fluorescent lamps – Safety and performance requirements. IEC 921:1988, Ballasts for tubular fluorescent lamps. Performance requirements. !ISO 4046:1978, Paper, board, pulp and related items – Vocabulary.”. #ISO 1456:2003, Metallic coatings – Electrodeposited coatings of nickel plus chromium and of copper plus nickel plus chromium.$. #ISO 2081:1986, Metallic coatings – Electroplated coatings of zinc on iron or steel. ISO 2093:1986, Electroplated coatings of tin – Specification and test methods.$. 3 Definitions 3.1 starter a device, other than a main switch, which closes or opens the pre-heating circuit of a fluorescent lamp for the purpose of starting the lamp 3.2 glow-starter a starter which depends for its operation on a glow discharge in a gaseous atmosphere 3.3 non-reclosure voltage a reduced voltage at which the starter contacts must not reclose after operation at the test voltage specified for testing the speed of operation 3.4 deactivated lamp a lamp in which one or both filaments are deprived of emitting material, but neither of which is broken 3.5 glow-starters with operating time limitation a glow-starter which prevents prolonged attempts to start lamps which refuse to start, e.g. lamps with deactivated electrodes the following types can be distinguished a) starters which are non-resettable (one shot); b) starters with a manual reset; c) starters with an automatic reset, by actuating the main switch or other intended actions. 4 General requirements Starters shall be so designed and constructed that in normal use their operation is without danger to the user or surroundings. In general, compliance is checked by carrying out all the tests specified. 5 General requirements for tests 5.1 Requirements for type tests only are included. 5.2 Unless otherwise specified, the tests shall be made at an ambient temperature of 25 ˚C ± 5 ˚C. 5.3 The tests shall be carried out in the order of the clauses. 6 Marking 6.1 Starters shall be provided with durable and legible marking as follows: |
| 8 | a) manufacturer’s or responsible vendor’s name, or trade mark; b) type or catalogue reference; c) lamp(s) for which the starter is intended. i) either include all the standardized wattages within that range in IEC 81 or 901; ii) indicate departures from that range either on the packaging material or in catalogues published by the manufacturer; d) temperature range for which the starter is intended to be used, if applicable. 6.2 Other useful indications, for example the circuit for which the starter is intended and, in some cases, the rated voltage of the starter, shall either be marked on the starter, or be referred to in the manufacturer’s publications. If applicable, the information shall be given that the starter is equipped with means of operating time limitation. 6.3 Marking shall be indelible and easily legible. It shall comply with the requirements of 7.11. 7 Requirements and tests for safety 7.1 Type test quantity The type test quantity shall consist of five starters to be submitted to the tests specified in 7.3 to 7.11 and 7.12.1, and 10 c… 7.2 Conditions of acceptance The type shall be considered as satisfying the requirements of this subclause if all five starters comply with the tests specifi… If any failures occur during a test, that test and the preceding ones, which may have influenced the results of that test, are repeated on a further five starters, all of which shall then comply with the repeated tests. All 10 starter capacitors submitted to the tests specified in 7.12.2 and 7.12.3 shall pass the tests. If any failure occurs during these tests, they shall be repeated on a further 10 starter capacitors, all of which shall comply with the repeated tests. 7.3 Protection against accidental electric shocks Enclosures for interchangeable starters shall ensure protection against electric shocks. Protection may be ensured either by an … Compliance is checked by inspection. 7.4 Insulation resistance under humidity conditions Immediately after a humidity treatment of 24 h ° 2 in an atmosphere of 91 % to 95 % relative humidity, and an ambient temperatur… Before starting the humidity treatment, the starters shall be kept in an ambient temperature which does not differ from the temperature within the humidity test enclosure by more than ˚C, for at least 4 h. 7.5 Dielectric strength Immediately after the insulation resistance test, the starter shall be subjected to and satisfactorily withstand for 1 min without breakdown a sinusoidal a.c. voltage of 1 500 V r.m.s. applied between the same parts as those referred to in 7.4. 7.6 Dimensions 7.6.1 The dimensions shall comply with the requirements of Figure 1. Compliance shall be checked by the gauges of Figure 6, Figure 7 and Figure 8. 7.6.2 The external creepage distance and clearance shall be not less than 3 mm between live parts of different polarity, or between live parts and accessible metal parts. The internal creepage distance between live parts and accessible metal parts shall be not less than 2 mm. 7.7 Torsion test The starter shall withstand a torque of 0,6 Nm about the axis and applied at the top of the canister by holding the pins in a fixed support. The torque shall not be applied suddenly but increased gradually from zero to the value specified. |
| 9 | 7.8 Mechanical strength The starter shall withstand without damage affecting safety, 20 falls of 500 mm onto a 3 mm thick steel plate in a tumbling barrel turning at 5 rev/min (that is 10 falls per minute). Suitable equipment for this test is shown in Figure 2. 7.9 Connections Electrical connections shall be so designed that the contact pressure is not transmitted through insulating material other than ceramic material. #Starter contacts shall consist of a material suitable for current-carrying parts. Examples of suitable metals for current-carry… Compliance is checked by inspection. This requirement does not apply to contacts between detachable parts, such as starters and their holders, for which adequate spring action is required. 7.10 Resistance to heat and fire 7.10.1 Enclosures and other external parts of insulating material shall be sufficiently resistant to heat. Compliance is checked by the following tests. Five samples are tested in a heating cabinet at a temperature of 125 ˚C during 168 h. During the test, the samples shall not undergo any change impairing their safety, especially in the following respects: At the end of the test, the dimensions shall comply with the requirements of 7.6.1. 7.10.2 Enclosures and other external parts of insulating material shall be subjected to a ball-pressure test by means of the apparatus shown in Figure 10. The surface of the part under test is placed in the horizontal position and a steel ball of 5 mm diameter is pressed against this surface by a force of 20 N. If the surface under test bends, the part where the ball presses should be supported. The test shall be made in a heating cabinet at a temperature of 125 ˚C ± 5 ˚C. After 1 h the ball shall be removed and the diameter of the impression measured. This diameter shall not exceed 2 mm. The test shall not be made on parts of ceramic, urea or alkyd plastics. For enclosures made from these materials, a test is under consideration. 7.10.3 Enclosures and other external parts of insulating material shall be resistant to abnormal heat and fire. Compliance is checked by the following test. Parts are subjected to a test using a nickel-chromium glow-wire heated to 650 ˚C. The test apparatus shall be that described in IEC 695-2-1. The sample to be tested is mounted vertically on the carriage and pressed against the glow-wire tip with a force of 1 N, prefera… Any flame or glowing of the sample shall extinguish within 30 s of withdrawing the glow-wire, and any burning or molten drop shall not ignite a piece of tissue paper, consisting of five layers, spread out horizontally 200 mm ± 5 mm below the sample. The glow-wire temperature and heating current shall be constant for 1 min prior to commencing the test. Care shall be taken to e… Precautions shall be taken to safeguard the health of personnel conducting tests against: 7.11 Quality of marking Compliance with the requirements shall be checked by inspection after rubbing the marking lightly for 15 s with a piece of cloth soaked with water. The test shall be repeated using a further piece of cloth soaked with petroleum spirit. 7.12 Radio interference suppression capacitors 7.12.1 The starter shall incorporate a radio interference suppression capacitor value between 0,005 4F and 0,02 4F, unless otherwise indicated on the appropriate lamp data sheet of IEC 81 or IEC 901. Compliance shall be checked by inspection. 7.12.2 The capacitor shall be resistant to moisture. Compliance shall be checked by the following test. |
| 10 | Before the humidity treatment, the capacitors shall be kept at an ambient temperature which does not differ from the temperature within the humidity test enclosure by more than ˚C for at least 4 h. Immediately after the humidity treatment of 24 h ° 2 in an atmosphere of 91 % to 95 % relative humidity and an ambient temperatu… The test voltage shall be applied across the terminations of the capacitor, and initially shall not be more than half the prescribed voltage. It shall then be raised gradually to the specified full value. ! 7.12.3 The capacitor shall be resistant to flame and ignition. Compliance shall be checked by the following test. The capacitors are each subjected to a gradually increasing a.c. voltage until breakdown occurs. The voltage source used to this effect should have a short-circuit power of approximately 1 kVA. Thereafter, each capacitor shall be completely wrapped with tissue paper as specified in 6.86 of ISO 4046 and shall be connected… During the test, the capacitor shall not inflame the tissue paper.”” 7.13 Heating of starters with operating time limitation The enclosure of starters with operating time limitation shall not deform during normal and abnormal operation, so that safety is not impaired. Compliance is checked by the following test. Starters are connected as in normal use and associated with a deactivated lamp of the highest wattage rating marked on the starter and a corresponding inductive ballast, except for 100 W and 125 W lamps where a capacitive ballast shall be used. The ballast shall comply with the requirements of Annex A. The test voltage shall be equal to 110 % of the rated voltage of the ballast. Starters are tested at the highest value of the marked temperature. Only the starter is subject to this temperature. The ballast and the lamp shall remain at room temperature. The duration of the test shall be 168 h. The general requirements for tests of Section 1 apply. 8 Starting test 8.1 Starting test quantity The starting test quantity shall consist of five new starters which have not been subjected to the tests specified in Section 1. 8.2 Conditions of acceptance The type shall be considered as satisfying the requirements of this subclause of all five starters comply with the tests specified in 8.4 to 8.7. If one failure occurs, a further five starters shall be selected and tested and all these shall comply. If more than one failure occurs in the first sample, the starters are deemed not to satisfy the requirements of this clause. 8.3 Conditions of test 8.3.1 For the duration of the test, the starter shall be in complete darkness, and shall have been kept in complete darkness for at least 15 h immediately prior to the test. This condition will be satisfied if the starter is enclosed in an opaque container. 8.3.2 The starter shall be tested in the circuit shown in Figure 3. 8.3.3 The ballast used shall meet the requirements of IEC 921. It shall have a rated voltage equal to the mains voltage, or fall… In case of doubt, a choice shall be made in mutual agreement between testing authority and manufacturer. 8.3.4 The lamp used shall meet the requirements of IEC 81 or in IEC 901 for switch-starter operated lamps, and shall have the same rated wattage as the ballast used. 8.3.5 The total harmonic content of the supply voltage shall not exceed 3 %. The harmonic content being defined as the root-mean-square (r.m.s.) summation of the individual harmonic components, using the fundamental as 100 %. |
| 11 | Care shall be taken that this applies under all conditions that occur during the measurement. 8.4 Speed of operation !With the exception of 20 W lamps as specified in IEC 81 for which the voltage shall be 103, 5 V, a voltage equal to the test vo… During this time, the contacts shall open not less than seven times.” 8.5 Closed time !During the period of 25 s referred to in 8.4, the starter contacts shall be closed for a minimum total period of 10 s.” 8.6 Non-reclosure voltage The voltage shall quickly and continuously be reduced from the value used in 8.4 to the non-reclosure voltage specified under “I… The switch contacts shall not reclose within 1 min, at the reduced voltage. 8.7 Pulse voltage The circuit for measuring pulse voltage shall be as shown in Figure 9, in combination with the circuit of Figure 3. The same vol… In case the starter is designed for a range of lamps, care should be taken that the highest maximum voltage value of all lamps within that range is taken. In case of dispute, the measurement with the electrostatic voltmeter is the reference method. 9 Endurance test 9.1 Test quantity The test quantity shall consist of five starters which have passed the starting tests, but which have not been subjected to any additional tests. 9.2 Conditions of acceptance The type shall be considered as satisfying the requirements of this subclause if all the five starters pass the tests specified in 8.4 to 8.7 inclusive, after having been subjected to the endurance test specified in 9.3. In the event of one starter failing to comply, another five starters shall be tested, all of which shall comply. If more than one failure occurs, the starters are deemed not to satisfy the requirements of this clause. 9.3 Conditions of test Starters for lamp ratings up to and including 80 W shall be tested in the circuit shown in Figure 4. A lamp of the highest rating for which the starter is intended, and a corresponding ballast of the inductive type shall be used. Starters for 100 W and 125 W lamps shall be tested in the circuit shown in Figure 5. A 125 W lamp and a 125 W ballast of the capacitive type shall be used. The ballast shall comply with the requirements of Annex A. The test voltage shall be equal to the rated voltage of the ballast. In the event of a lamp failing during this test, arrangements shall be made for its immediate replacement. The test voltage shall be applied to the circuit for 6 000 test cycles, each of 1 min. During each cycle, the voltage shall be applied for 20 s to 30 s. 10 Deactivated lamp test 10.1 Test quantity The test quantity shall consist of five starters which have passed the starting tests, but which have not been subjected to any additional tests. 10.2 Conditions of acceptance of starters without operating time limitation The type shall be considered as satisfying the requirements of this subclause if all five starters pass the tests specified in 8.4 to 8.7 inclusive, after having been subjected to the deactivated lamp test specified in 10.3. |
| 12 | In the event of one starter failing to comply, another five starters shall be tested, all of which shall comply. If more than one failure occurs, the starters are deemed not to satisfy the requirements of this clause. 10.3 Conditions of test Starters for lamp ratings up to and including 80 W shall be tested in the circuit shown in Figure 4, and starters for 125 W lamps shall be tested in the circuit shown in Figure 5. The lamps used shall be deactivated. The duration of the test is 3 h. For practical reasons, a more stringent test without a lamp in the circuit may be used. In case of doubt, the lamp test according to Figure 4 and Figure 5 shall, however, be decisive. A lamp of the highest rating for which the starter is intended, and an appropriate inductive ballast shall be used. A 125 W lamp and a 125 W ballast of the capacitive type shall be used for testing 100 W and 125 W starters. The ballast shall comply with the requirements of Annex A. The test voltage shall be equal to the rated voltage of the ballast. In the event of a lamp failing during this test, arrangements shall be made for its immediate replacement. 10.4 Conditions of acceptance for starters with operating time limitation The type shall be considered as satisfying the requirements of this subclause if five starters pass the test specified in 10.5. After this test, resettable starters shall pass the tests specified in 8.4 to 8.7 inclusive. In the event of one starter failing to comply, another five starters shall be tested, all of which shall comply. If more than one failure occurs, the starters are deemed not to satisfy the requirements of this subclause. 10.5 Operating time limitation test Within 5 min after switching-on of the supply voltage, the means for preventing to start attempts shall become operative. Self-resetting shall not take place. Compliance is checked by observation of lamp starting attempts, or by other means indicated by the manufacturer. In this test the starters are connected as in normal use and associated with a deactivated lamp of the lowest wattage rating mar… The ballast shall comply with the requirements of Annex A. The test voltage shall be the rated voltage of the ballast. Starters are tested at the lowest value of the marked temperature range. Only the starter is subject to this temperature, the lamp and the ballast shall remain at room temperature. Starters with a manual reset shall be subjected to 25 test cycles of 5 min “ON”, and minimum 10 min “OFF”. Starters with an automatic reset shall be subjected to 500 of the above test cycles. The means for preventing starting attempts shall become operative during every “ON” period. |
| 13 | ! 11 Information for luminaire design See Annex C.” The drawing is intended only to indicate the dimensions to be checked. B D E H L S T – 4,7 2,8 33,0 – 1,7 1,9 21,5 5,0 3,2 36,0 4,3 – 2,2 Figure 1 – Dimensions of starters |
| 14 | Figure 2 – Tumbling barrel |
| 15 | Figure 3 – Circuit for starting test Figure 4 – Circuit for endurance test – Starters for lamp ratings up to and including 80 W |
| 16 | Figure 5 – Circuit for endurance test – Starters for lamps rated at 100 W and 125 W |
| 17 | The drawing is intended only to illustrate the essential dimensions of the gauge. D1 D2 D3 L M 5,20 5,00 4,70 4,30 35 + 0,01 + 0,01 – 0,01 + 0,02 Approx. Figure 6 “Go” and “NOT GO” gauge for starters |
| 18 | The drawing is intended only to illustrate the essential dimensions of the gaugea. a This gauge does not apply to starters for class II fluorescent lamp luminaires. A gauge for these is given in Figure B.2 B D S V W 30 5,20 1,60 2,20 3,60 ± 0,5 + 0,05 – 0,05 + 0,01 + 0,01 Purpose: Testing: Figure 7 “NOT GO” gauge for starters |
| 19 | The drawing is intended only to illustrate the essential dimensions of the gauge. B D E K M N S T1 T2 ! ” 21,50 5,20 3,40 19,0 35 13 1,70 1,90 2,20 45˚ 15˚ + 0,01 + 0,01 + 0,01 + 0,2 Approx. Approx. – 0,01 – 0,01 + 0,01 Approx. Approx. Figure 8 “GO” gauge for starters |
| 20 | Figure 9 – Circuit for measurement of pulse voltage |
| 21 | Figure 10 – Ball-pressure test apparatus |
| 22 | A ballast used for the life testing of starters shall comply with the following four requirements. 1) It shall be of a type complying with IEC 921, and corresponding with the starting conditions of the lamp as indicated on the appropriate lamp data sheet of IEC 81 or of IEC 901. 2) The rated voltage of the ballast shall lie within one of the following ranges: 180 V and higher 220 V – 230 V 3) When, at its rated voltage, it is associated with a lamp whose voltage at lamp terminals does not deviate by more than ± 2 % … 4) For pre-heated lamps operating with starter, the pre-heating current (short-circuit current) at rated voltage shall not differ by more than ± 10 % from the nominal value specified in the lamp data sheets of IEC 81 or of IEC 901. Introduction For starters for use in class II fluorescent lamp luminaires, the clauses and subclauses of this standard apply with the following amendments. Section 1 – General and safety requirements 1 Scope Replace this clause by the following text: This Annex B is intended to cover a special type of interchangeable glow-starter, used with pre-heat type fluorescent lamps, for… 7 Requirements and tests for safety 7.3 Protection against accidental electric shocks Replace this subclause by the following text: The enclosures of accessible starters shall consist of insulating material. Compliance is checked by inspection. 7.6 Dimensions Replace subclause 7.6.1 by the following text: 7.6.1 The dimensions shall comply with the requirements of Figure B.1 of this annex. Compliance shall be checked by the gauges of Figure B.2 of this annex and also Figure 6 of this standard. |
| 23 | The drawing is intended only to indicate the dimensions to be checked. B D E H L S T V Wa – 4,7 2,8 33,0 – 1,7 1,9 2,7 4,2 21,5 5,0 3,2 36,0 4,3 – 2,2 – – a Distance over which dimension V applies. Figure B.1 Dimensions of starters for class II fluorescent lamp luminaires |
| 24 | The drawing is intended only to illustrate the essential dimensions of the gauge. B D E K M N S T1 T2 ! ” V W 21,50 5,20 3,40 19,0 35 13 1,70 1,90 2,20 45˚ 15˚ 2,60 4,15 + 0,01 + 0,01 + 0,01 + 0,2 Approx. Approx. – 0,01 – 0,01 + 0,01 Approx. Approx. – 0,01 – 0,01 Figure B.2 “GO” gauge for starters for class II luminaires ! The maximum temperature of any part of the starter canister should not exceed 80 ˚C.” |
| 25 | # Examples of suitable metals for current-carrying parts, referred to in Subclause 7.9, when used within the permissible temperature range and under normal conditions of chemical pollution are : E.1 Scope This guide to good practice is intended to advise starter manufacturers on the behaviour of plastic materials under the influence of temperature, UV radiation and mechanical stress. E.2 Plastics for starter enclosures The selection of suitable plastic materials for starter enclosures should take into account established applications for starter… E.2.1 Applications for starter use Special attention should be given to E.2.2 Damaging influences Special attention should be given to Some combinations of these influences have particular importance and may make a material unsuitable for this application. For ex… The properties published in respect of particular materials of given generic names can differ depending on the fillers, flame retardants and inhibitors used, the manufacturing procedure, and the design.$ |
| 26 | This European Standard incorporates by dated or undated reference, provisions from other publications. These normative reference… + corr. March 1992 a EN 60081 includes A1:1987 + A2:1988 to IEC 81 |
| 28 | BS EN 60155:1995 IEC 155:1993 BSI 389 Chiswick High Road London W4 4AL BSI – British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an ina… BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 89… In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical… Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase pri… Information regarding online access to British Standards via British Standards Online can be found at http://www.bsi-global.com/bsonline. Further information about BSI is available on the BSI website at http:// www.bsi-global.com. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international st… This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size,… Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: [email protected]. |
