BS ISO 9211-3-2008 Optics and photonics - Optical coatings - Environmental durability《光学和光子学 光学涂层 环境耐久性》.pdf

1、BS ISO 9211-3:2008 ICS 37.020 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Optics and photonics Optical coatings Part 3: Environmental durabilityThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 Sep

2、tember 2008 BSI 2008 ISBN 978 0 580 57857 1 Amendments/corrigenda issued since publication Date Comments BS ISO 9211-3:2008 National foreword This British Standard is the UK implementation of ISO 9211-3:2008. It supersedes BS ISO 9211-3:1994 which is withdrawn. The UK participation in its preparatio

3、n was entrusted to Technical Committee CPW/172/3, Optical materials and components. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for it

4、s correct application. Compliance with a British Standard cannot confer immunity from legal obligations.BS ISO 9211-3:2008Reference number ISO 9211-3:2008(E) ISO 2008INTERNATIONAL STANDARD ISO 9211-3 Second edition 2008-07-01 Optics and photonics Optical coatings Part 3: Environmental durability Opt

5、ique et photonique Traitements optiques Partie 3: Durabilit environnementale BS ISO 9211-3:2008 ISO 9211-3:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces

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9、hanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.i

10、so.org Published in Switzerland ii ISO 2008 All rights reservedBS ISO 9211-3:2008 ISO 9211-3:2008(E) ISO 2008 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing In

11、ternational Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison

12、with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of techn

13、ical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn

14、 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 such patent rights. ISO 9211-3 was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 3, Optical materials a

15、nd components. This second edition cancels and replaces the first edition (ISO 9211-3:1994) subclauses 3.1 to 3.5 of which have been technically revised or deleted and renumbered; Table 1 of which has been expanded and technically revised and Table 2 of which has been deleted and replaced by new inf

16、ormative Annex A. ISO 9211 consists of the following parts, under the general title Optics and photonics Optical coatings: Part 1: Definitions Part 2: Optical properties Part 3: Environmental durability Part 4: Specific test methods BS ISO 9211-3:2008BS ISO 9211-3:2008 INTERNATIONAL STANDARD ISO 921

17、1-3:2008(E) ISO 2008 All rights reserved 1 Optics and photonics Optical coatings Part 3: Environmental durability 1 Scope ISO 9211 identifies surface treatments of components and substrates excluding ophthalmic optics (spectacles) by the application of optical coatings and gives a standard form for

18、their specification. It defines the general characteristics and the test and measurement methods whenever necessary. It is not intended to define the process method. This part of ISO 9211 specifies categories of use for optical coatings and identifies which environmental tests are necessary to prove

19、 that the coatings meet the required specification. Definitions and the extent of testing are given in ISO 9022-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated refer

20、ences, the latest edition of the referenced document (including any amendments) applies. ISO 9022-1, Optics and optical instruments Environmental test methods Part 1: Definitions, extent of testing ISO 9022-2, Optics and optical instruments Environmental test methods Part 2: Cold, heat and humidity

21、ISO 9022-4, Optics and optical instruments Environmental test methods Part 4: Salt mist ISO 9022-6, Optics and optical instruments Environmental test methods Part 6: Dust ISO 9022-9:1994, Optics and optical instruments Environmental test methods Part 9: Solar radiation ISO 9022-11, Optics and optica

22、l instruments Environmental test methods Part 11: Mould growth ISO 9022-12, Optics and optical instruments Environmental test methods Part 12: Contamination ISO 9022-14, Optics and optical instruments Environmental test methods Part 14: Dew, hoarfrost, ice ISO 9211-4, Optics and optical instruments

23、Optical coatings Part 4: Specific test methods 3 Categories of use 3.1 Definitions of categories Five categories of use are defined. Each category requires either different environmental tests and/or different severity of testing. These categories are listed below in order of severity of requirement

24、. BS ISO 9211-3:2008 ISO 9211-3:2008(E) 2 ISO 2008 All rights reservedCategory A This category refers to components in applications which would normally only apply when they are to be mounted internally within sealed units. In this category, handling is in a protected and controlled environment and

25、should only take place with extreme care. Physical contact with the optically coated surface is discouraged. Category B This category refers to applications where components will be exposed only to a controlled environment. Such applications may involve mild abrasion such as occurs with carefully co

26、ntrolled cleaning. Category C This category refers to applications where components will be exposed to normal outdoor ambient conditions and cleaning but without severe abrasion and scratching. Category D This category refers to applications where components will be exposed to severe outdoor ambient

27、 conditions and uncontrolled cleaning with the risk of severe abrasion and scratching. Category O This category refers to applications which require special, non standard, specifications. Since the specification of the components in such cases will not exactly fit into one of the categories A to D,

28、the recommended way to specify in such a case is to indicate first the category in which most requirements are satisfied. The exceptional requirements can then be specified from other categories or by indicating the test degree of severity. EXAMPLE “Category C; Abrasion, Humidity: Category B; Adhesi

29、on: 03”. 3.2 Operating and storage conditions The temperature specifications listed in Table 1 are meant as storage conditions. For some types of coating, e.g. bandpass filters and accurate edge filters, it may be necessary that spectral tolerances shall be maintained within a certain temperature ra

30、nge. This should be specified separately, according to the requirements of the application. 3.3 Influence of the substrate It should be kept in mind that it is not the coating but the entire coating-substrate combination which determines the category of use. For instance, coatings on glass, normally

31、 satisfying category C, might not do so when applied to sensitive or unstable substrates. This is likely to become apparent with the rain, solubility, humidity, heat, and salt spray tests, for example. 3.4 Cemented coatings This part of ISO 9211 does not apply to cemented coatings. The environmental

32、 stability of such a substrate- coating-cement-substrate combination depends too much on properties of the cement, as well as the (relative) properties, e.g. thermal expansion, of the two substrate components involved. BS ISO 9211-3:2008 ISO 9211-3:2008(E) ISO 2008 All rights reserved 3 4 Specificat

33、ions The mechanical and chemical properties of coated optical elements, and more generally their environmental durability, can be assessed by a variety of methods. Test methods selected to give meaningful results representative of actual exposure of optical elements in their operating environment ar

34、e listed in Table 1. The practical severity of any test listed may be limited by the substrate. The requirements for coatings as listed in Table 1 are typically not accumulative and can be tested individually. The tests in Table 1 are subdivided into degrees of severity, where appropriate. The sever

35、ity of the test requirement increases with the number. The description is condensed information about the test method only. The full test procedure shall be taken from appropriate International Standards, referenced in Table 1, or can be specified by mutual agreement between customer and manufacture

36、r. An individual test performed on a one-test-on-one-sample basis can give information about that single property of an optical coating reflected by that test and can be particularly useful for the manufacturer. In reality, optical coatings will face a variety and range of severity of environmental

37、exposures, which can be simulated by certain test sequences. Inevitably, such test sequences represent accumulative requirements. Requirements without any listed categories in Table 1 are to be considered for optional use in category O, and are subject to agreement between customer and manufacturer.

38、 Table 1 Environmental tests for optical coatings Categories of use No. Test Degree of severity Description A B C D O Reference a01 50 strokes cheesecloth x 02 100 strokes cheesecloth x 03 20 strokes eraser x 1 Abrasion 04 40 strokes eraser ISO 9211-4 01 Slow tape removal x 02 Quick tape removal x x

39、 03 Snap tape removal 2 Adhesion Crosshatch test ISO 9211-4 3 Dust/sand 01 to 03 Expose to the dust-laden air of velocity 8 m/s to 10 m/s, at a temperature of 18 C to 28 C and of relative humidity below 25 % for 6 h. The dust concentration is 5 g/m 3to 15 g/m 3 , and the size distribution of dust pa

40、rticle is given by: Dust particle size distribution Size (m) 140 to 100, 100 to 71, 71 to 45, 97 % ISO 9022-6 BS ISO 9211-3:2008 ISO 9211-3:2008(E) 4 ISO 2008 All rights reservedTable 1 (continued) Categories of use No. Test Degree of severity Description A B C D O Reference a01 Immerse in distilled

41、 or deionized water at a temperature of 23 C 2 C for 6 h x 02 Immerse in distilled or deionized water at a temperature of 23 C 2 C for 24 h x 03 Immerse in distilled or deionized water at a temperature of 23 C 2 C for 96 h 04 Immerse in salt water (45 g NaCl/l) at a temperature of 23 C 2 C for 6 h 0

42、5 Immerse in salt water (45 g NaCl/l) at a temperature of 23 C 2 C for 24 h x 06 Immerse in salt water (45 g NaCl/l) at a temperature of 23 C 2 C for 96 h 07 Immerse in boiling distilled or deionized water for 5 min x 08 Immerse in boiling distilled or deionized water for 15 min x 09 Immerse in boil

43、ing salt water (45 g NaCl/l) for 5 min x 10 Immerse in boiling salt water (45 g NaCl/l) for 15 min 11 Immerse in boiling salt water (45 g NaCl/l) for 60 min 4 Solubility 12 Immerse in boiling distilled or salt water (45 g NaCl/l) for 2 min. Then immerse in distilled water at room temperature for 1 m

44、in ISO 9211-4 06 Expose to climatic conditions of 90 % to 95 % relative humidity and 55 C 2 C for 6 h x 07 Expose to climatic conditions of 90 % to 95 % relative humidity and 55 C 2 C for 16 h x 5 Damp heat 03 Expose to climatic conditions of 90 % to 95 % relative humidity and 40 C 2 C for 10 d x IS

45、O 9022-2 05 Expose to a temperature of 25 C 3 C for 16 h x 07 Expose to a temperature of 35 C 3 C for 16 h x x 6 Cold 09 Expose to a temperature of 55 C 3 C for 16 h (The temperature change rate should be less than 3 C/min) x ISO 9022-2 03 Expose to an atmosphere of 55 C 2 C (below 40 % relative hum

46、idity) for 16 h x 05 Expose to an atmosphere of 70 C 2 C (below 40 % relative humidity) for 6 h x x 7 Dry heat 06 Expose to an atmosphere of 85 C 2 C (below 40 % relative humidity) for 6 h (The temperature change rate should be less than 5 C/min) x ISO 9022-2 8 Slow temperature change 02 05 07 25 C

47、3 C to + 55 C 2 C 35 C 3 C to + 63 C 2 C 50 C 3 C to + 70 C 2 C Test chamber temperature change rate: between 0,2 C/min and 2 C/min x x x ISO 9022-2 BS ISO 9211-3:2008 ISO 9211-3:2008(E) ISO 2008 All rights reserved 5 Table 1 (continued) Categories of use No. Test Degree of severity Description A B

48、C D O Reference a9 Salt mist Expose to salt spray fog of 35 C 2 C for 24 h Salt solution (concentration: 5 % 1 %, pH 6,5 to 7,2) is injected by compressed air (0,4 10 5Pa to 1,7 10 5 Pa) from 0,5 ml/h to 3,0 ml/h per 80 cm 2in fallout ratex ISO 9022-4 b10 Solar radiation 01 Expose to the radiation i

49、n a de-ozonised atmosphere of 25 C 2 C to 55 C 2 C for 72 h Irradiance on the surface of sample is 1 kW/m 2 0,1 kW/m 2 The radiation source and spectral energy distribution shall be in accordance with Table 1 of ISO 9022-9:1994 ISO 9022-9 11 Icing/frosting 01 and 02 Expose to the following atmospheres in succession (conditioning method 77): Step 1 Initial temperat