1、BRITISH STANDARD BS ISO 17514:2004 Time-measuring instruments Photoluminescent deposits Test methods and requirements ICS 39.040.01 BS ISO 17514:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 7 January 2005 BSI 7 January 2005 ISBN 0 580
2、 45193 3 National foreword This British Standard reproduces verbatim ISO 17514:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee STI/53, Jewellery, which has the responsibility to: A list of organizations represented on t
3、his committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Sear
4、ch” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal ob
5、ligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summar
6、y of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Da
7、te CommentsNITENRATIONAL TSDNAARD OSI 41571 iFtsr deoitin 24000-21-1 Reference number ISO 17514:2004(E) Time-measuring instruments Photoluminescent deposits Test methods and requirements Instruments de mesure du temps Dpts photoluminescents Mthodes dessai et exigencesINTERNATIONAL STANDARD ISO 17514
8、 First edition 2004-12-01 Refecnern eumreb OSI 57141002:)E(4 OSI 2004 emiTem-gnirusa tsnimuretns Phulotomeniped tnecsostis T ets htemdodna s uqernemerist snItruemstn ed emruse t udepms pDst ohplotuimencstnes htMedod sseaste i exinegecsBSISO17514:2004ii BSISO17514:2004 iii Foreword ISO (the Internati
9、onal Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been
10、 established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standa
11、rdization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for
12、voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all
13、such patent rights. ISO 17514 was prepared by Technical Committee ISO/TC 114, Horology, Subcommittee SC 5, Luminescence. BSISO17514:2004blankANRETNIITOTS LANDNADRA ISO 15714002:4)E(1 Time-measuring instruments Photoluminescent deposits Test methods and requirements 1S c o p e This International Stan
14、dard specifies the test methods of various aspects of the photoluminescent deposits applied to time-measuring instruments, together with the requirements related to them. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refer
15、ences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3157:1991, Radioluminescence for time measurement instruments Specifications 3 Terms and definitions For the purposes of this document, the following t
16、erms and definitions apply. 3.1 photoluminescent deposit non-radioactive substance applied to a support, which is able to accumulate energy and release it as light 3.2 luminance ratio of the light intensity to the surface unit of emission for a remote observer NOTE This is expressed as nanocandelas
17、per square centimetre ( ). 3.3 luminance degradation coefficient decrease of luminance as a function of time 3.4 legibility ability of the luminescent item to be seen distinctly 3.5 legibility limit minimum luminous intensity with which the luminescent item can be seen distinctly 3.6 luminous intens
18、ity the light intensity for a remote observer NOTE This is expressed in ncd. ncd/cm 2 BSISO17514:20042 4 Test methods and requirements 4.1 Tests on sample 4.1.1 Test sampleof the photoluminescent deposit shall be applied evenly to a surface area of at the end of a white-coated metallic support. The
19、white colour shall be the safety white No. 9003 of the RAL (Reichsausschuss fr Lieferbedingungen) colour range. 4.1.2 Colours The standardized colours shall be those defined in 4.2.1 of ISO 3157:1991. Checking of colour shall be done by visual examination in daylight, not in direct sunlight. Measure
20、ments according to CIE 1976 L*a*b* are a possible alternative. 4.1.3 Luminous intensity and luminance Luminous intensity of the test sample shall be checked according to the following procedures: a) Store the test sample at ambient temperature for at least in the dark. b) Irradiate the test sample u
21、nder the D65 light source at for or for , and then store it in the dark. c) Measure the luminous intensity of the test sample , and after its storage. If the time required for reaching the legibility limit or the luminance degradation coefficient is needed, the curve may be extrapolated down to a lu
22、minance of . A photometer shall be used for the measurement. Throughout the test periods b) and c), the ambient temperature shall be and the relative humidity shall be . 4.1.4 Ageing resistance Ageing resistance of the test sample shall be checked according to the following procedures: a) Measure th
23、e luminous intensity of the test sample according to 4.1.3. b) Expose the test sample to UV light, humidity and temperature as described in 4.4.2 of ISO 3157:1991. The duration of the exposure shall be extended to . c) Visually inspect the test sample; no discoloration, crack, damage, breakage or ex
24、foliation shall be allowed. d) Measure again the luminous intensity (according to 4.1.3) after of storage in the dark. The luminous intensity loss shall be less than . 4.1.5 High/low temperature resistance High/low temperature resistance of the test sample shall be checked according to the following
25、 procedures: a) Measure the luminous intensity of the test sample according to 4.1.3. b) Store the test sample in the dark at and relative humidity for . c) Store the test sample in the dark at for ; the time to pass from toshall be at least . (30 1) mg (1 0,03) cm 2 8h 200 lx 30 min 400 lx 20 min 3
26、0 min 90 min 180 min 40 ncd/cm 2 (23 2) C (50 15) % 48 h 24 h 10 % (80 5) C (50 15) % 1 h (20 5) C 1 h (80 5) C (20 5) C 30 min BSISO17514:2004 3 d) Visually inspect the test sample; no discoloration, crack, damage, breakage or exfoliation shall be allowed. e) Measure again the luminous intensity (a
27、ccording to 4.1.3). The luminous intensity loss shall be less than . 4.2 Test on components 4.2.1 General While the test is intended to be carried out for a set of components, it may be carried out for only one component or for a set of components or for a complete time-measuring instrument. 4.2.2 L
28、egibility Legibility of a photoluminescent deposit-coated component shall be checked according to the following procedures: a) Store the photoluminescent deposit-coated component at ambient temperatures for at least in the dark. b) Irradiate the photoluminescent deposit-coated component under the D6
29、5 light source at for or at for , and then store it in the dark. c) Visually inspect the photoluminescent deposit-coated component for its legibility in the darkroom after a storage, then every hour. The legibility criteria shall be: 1) Hour and minute hands shall be clearly identified (seen and dis
30、tinguished). 2) The 12 oclock direction on the dial shall be clearly identified (seen and distinguished). The legibility limit shall comply with the luminous intensity measured by ncd specified in d), e) and f) of 3.2.1 of ISO 3157:1991 after the prescribed time. Throughout the test periods b) and c
31、), the ambient temperature shall be and the relative humidity shall be . Legibility can depend on visual acuity of the inspector. In this case, a photometer shall be used for the measurement. It is recommended that the inspector enter the dark room at least before attempting the visual inspection. R
32、ecommended distances necessary for visual inspection are for watches, for table clocks and for wall clocks. 4.2.3 Adhesion Adhesion of the photoluminescent deposit on the components shall be checked through visual inspections before and after the test to be run according to 4.5.1 and 4.5.2 of ISO 31
33、57:1991. There shall be no cracks, damages, breakage or exfoliation in the photoluminescent deposit. NOTE The adhesive tape test described in ASTM D3359-97 is often used as a practical adhesion test. 4.2.4 Test on empty cavities The tests defined in 4.1.4 and 4.1.5 may be used in some specific cases
34、, particularly when the photoluminescent deposits fill empty cavities. 10 % 8h 200 lx 30 min 400 lx 20 min 3h (23 2) C (50 15) % 10 min 25 cm 50 cm 150 cm BSISO17514:20044 Annex A (informative) Test report The test report should include at least the following information: a) identification of the sa
35、mple, including origin, date of receipt and form; b) sampling method; c) reference to this International Standard; d) measurement values and observations; e) any deviation from the test procedures, if necessary; f) any unusual events observed during the inspection; g) date of the test; h) signature
36、of the operator. BSISO17514:2004 5 Bibliography 1 ASTM D3359-97, Standard test methods for measuring adhesion by tape test BSISO17514:2004BS ISO 17514:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing Britis
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