1、February 2016 English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 37.020!%LFg“2413568www.din.deDI
2、N ISO 9022-12Optics and photonics Environmental test methods Part 12: Contamination (ISO 9022-12:2015),English translation of DIN ISO 9022-12:2016-02Optik und Photonik Umweltprfverfahren Teil 12: Oberflchenverunreinigung (ISO 9022-12:2015),Englische bersetzung von DIN ISO 9022-12:2016-02Optique et p
3、hotonique Mthodes dessais denvironnement Partie 12: Contamination (ISO 9022-12:2015),Traduction anglaise de DIN ISO 9022-12:2016-02SupersedesDIN ISO 9022-12:2000-09www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document
4、 comprises 16 pages 01.16 DIN ISO 9022-12:2016-02 2 A comma is used as the decimal marker. Foreword 3Introduction 51 Scope . 62 Normative references 63 General information and test conditions 63.1 Specimen 63.2 Test pad . 73.3 Test weight and arrangement of test pads 84 Conditioning 94.1 General . 9
5、4.2 Conditioning method 86: Basic cosmetic substances and artificial hand sweat 94.3 Conditioning method 87: Laboratory agents 94.4 Conditioning method 88: Production plant resources . 94.5 Conditioning method 89: Fuels and resources for aircraft, naval vessels, and land vehicles 95 Procedure125.1 G
6、eneral 125.2 Preconditioning .125.3 Test sequence 135.4 Recovery 135.5 Evaluation .135.6 General level for acceptance .136 Environmental test code 147 Specification .14Annex A (normative) Determination of pH value of aqueous extract of pad materials 15Contents PageNationalNational Annex NA (informat
7、ive) Bibliography 4.DIN ISO 9022-12:2016-02 3 National foreword This document (ISO 9022-12:2015) has been prepared by Technical Committee ISO/TC 172 “Optics and photonics”, Subcommittee SC 1 “Fundamental standards” (Secretariat: DIN, Germany). The responsible German body involved in its preparation
8、was DIN-Normenausschuss Feinmechanik und Optik (DIN Standards Committee Optics and Precision Mechanics), Working Committee NA 027-01-02 AA Grundnormen fr die Optik, Working Group NA 027-01-02-03 AK Umweltbedingungen und -prfungen fr optische Gerte. Attention is drawn to the possibility that some of
9、the elements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. DIN ISO 9022 consists of the following parts, under the general title Optics and photonics Environmental test methods: null Part 1: Definitio
10、ns, extent of testing null Part 2: Cold, heat and humidity null Part 3: Mechanical stress null Part 4: Salt mist null Part 6: Dust null Part 7: Resistance to drip or rain null Part 8: High internal pressure, low internal pressure, immersion null Part 9: Solar radiation and weathering null Part 11: M
11、ould growth null Part 12: Contamination null Part 14: Dew, hoarfrost, ice null Part 17: Combined contamination, solar radiation null Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide null Part 22: Combined cold, dry heat or temperature change with bump or random vibration null
12、Part 23: Low pressure combined with cold, ambient temperature and dry and damp heat The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 9022-1 DIN ISO 9022-1 Amendments This standard differs from DIN ISO 9022-12:2000-09 as follows: a) normativ
13、e references have been updated; b) the standard has been editorially updated; c) the text of International Standard ISO 9022-12:2015 has been adopted in its entirety. DIN ISO 9022-12:2016-02 4 Previous editions DIN 58390-12: 1986-09 DIN ISO 9022-12: 2000-09 National Annex NA (informative) Bibliograp
14、hy DIN ISO 9022-1, Optics and photonics Environmental test methods Part 1: Definitions, extent of testing IntroductionOptical instruments are affected during their use by a number of different environmental parameters which they are required to resist without significant reduction in performance and
15、 to remain within defined specifications.The type and severity of these parameters depend on the conditions of use of the instrument (for example, in the laboratory or workshop) and on its geographical location. The environmental effects on optical instrument performance in the tropics and subtropic
16、s are totally different from those found when they are used in arctic regions. Individual parameters cause a variety of different and overlapping effects on instrument performance.The manufacturer attempts to ensure, and the user naturally expects, that instruments will resist the likely rigours of
17、their environment throughout their life. This expectation can be assessed by exposure of the instrument to a range of simulated environmental parameters under controlled laboratory conditions. The severity of these conditions is often increased to obtain meaningful results in a relatively short peri
18、od of time.In order to allow assessment and comparison of the response of optical instruments to appropriate environmental conditions, ISO 9022 contains details of a number of laboratory tests which reliably simulate a variety of different environments. The tests are based largely on IEC standards,
19、modified where necessary to take into account features special to optical instruments.As a result of continuous progress in all fields, optical instruments are no longer only precision-engineered optical products, but, depending on their range of application, also contain additional assemblies from
20、other fields. For this reason, the principal function of the instrument is to be assessed to determine which International Standard should be used for testing. If the optical function is of primary importance, then ISO 9022 is applicable, but if other functions take precedence then the appropriate I
21、nternational Standard in the field concerned should be applied. Cases can arise where application of both ISO 9022 and other appropriate International Standards will be necessary.DINISO 9022-12:2016-025Optics and photonics Environmental test methods Part 12: Contamination1 ScopeThis part of ISO 9022
22、 specifies the methods relating to the environmental tests of optical instruments including additional assemblies from other fields (e.g. mechanical, chemical, and electronic devices), under equivalent conditions, for their ability to resist the influence of contamination, i.e. contact with corrosiv
23、e chemical substances (hereafter called test agents).1)However, complete instruments or assemblies are only tested as specified in this part of ISO 9022 in exceptional cases (see 5.3). Normally, representative samples such as material items or surface coatings on representative substrates are used f
24、or testing.The tests described in this part of ISO 9022 are designed for the selection of materials and components for instruments likely to suffer contamination during service life, rather than for regular production control.The purpose of testing is to investigate the resistance of an instrument a
25、nd, in particular, of instrument surfaces, coatings, or synthetic materials, to a short exposure to the test agents.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only th
26、e edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 9022-1, Optics and photonics Environmental test methods Part 1: Definitions, extent of testing3 General information and test conditionsThe test shall be conducted und
27、er ambient atmospheric conditions in accordance with ISO 9022-1.The test agents listed from each conditioning method (Clause 4) represent different chemical groups.3.1 SpecimenUnless the testing of complete instruments or assemblies is required in the relevant specification, representative samples s
28、hall be used for testing. Representative sample sheets of at least 1 mm thickness and having dimensions as shown in Figure 1 shall be used as substrates for the testing of non-metallic coatings.NOTE Sample sheets of 140 mm 2 mm or 280 mm 2 mm in length can also be specified in the relevant specifica
29、tion.1) Another possible source of service contamination to which optical instruments can be exposed is radioactive elements and isotopes, and hazardous chemical substances (e.g. 2:2-dichlorodiethysulfide). However, as these materials may only be handled, used for testing, and stored by special, off
30、icially approved laboratories, they were not used as test reagents.6DIN ISO 9022-12:2016-02 Dimensions in millimetresKey1 marking area (on the back)a 210 2 (280 2)b 95 5 (140 2)Figure 1 Sample sheetCoatings to be tested shall be of the same structure as the coating intended for the instrument or for
31、 parts of the instrument.Prior to applying the coating, prepare the surface of the sample sheet in the same manner as required for the original instrument. The coating shall completely surround the sample sheet so as to cover, particularly, edges, corners, and edges of holes. The coating shall not b
32、e degraded by identification marking; numbers, etc. shall be punched prior to applying the coating.Particular care shall be taken to apply the coating in such a manner that the dry film will meet the thickness required for the instrument with a tolerance of 5 m. The specimens shall be protected from
33、 contamination until commencement of the tests.If sample sheets as shown in Figure 1 are not available, as level a surface as possible of representative instrument parts shall be used as test areas for testing synthetic materials. Where such surfaces are not sufficient in size to support the test pa
34、d (3.2), the specimen shall be half immersed in the test agent in order to permit testing under the required conditions.3.2 Test padFelt pads having the following characteristics and drenched with test agent shall be used as test media:colour: whitemass density: 0,25 g/cm3to 0,30 g/cm3pH: 5 to 8 (fo
35、r measurement, see Annex A)thickness: 1 mmdiameter 9 mmThe felt pads shall be used only once.7 DIN ISO 9022-12:2016-02 3.3 Test weight and arrangement of test padsFor the duration of the test, the felt pad, drenched in test agent, shall be weighted by means of a high-grade steel (e.g. X 5 CrNi 18 9
36、or X 5 CeNi 18 10 ) weight as shown in Figure 2.Dimensions in millimetresuni230010uni2300130,93204uni23001uni23008uni230020Tolerances Dimension Tolerance 0,5 to 6 0,1 6 to 30 0,2 30 to 120 0,3 123Key1 specimen2 drenched felt pad3 weight approx. 43 gFigure 2 Weight and test arrangementWhere corrosive
37、 agents (such as concentrated acids or acids developing corrosive vapour) capable of attacking the weight are used for testing, the test pad shall be covered with a polytetrafluoroethylene (PTFE) capsule as shown in Figure 3 before placing the weight on it.Normally, up to 21 test pads can be placed
38、on a specimen with dimensions as shown in Figure 1, provided that the pads are arranged in seven lines of three exposure areas each. Care shall however be taken to leave sufficient space between the exposure areas to prevent mutual contamination of the test agents. Each exposure area shall be approp
39、riately identified by means of a pressure-sensitive label showing the test agent used and the degree of severity. Direct lettering in pencil or by similar means is unacceptable.8DINISO 9022-12:2016-02N1)N1) National footnote: In the original ISO document, the designation erroneously reads “X 5 CeNi
40、18 10”ins tead of “X 5 CrNi 18 10”.Dimensions in millimetresTolerances as shown in Figure 230,9uni230010uni230014uni23000,51Key1 ventilation capillaryFigure 3 Capsule4 Conditioning4.1 GeneralEach of the test agents listed for a conditioning method shall be included in the test performed in accordanc
41、e with that conditioning method.The exposure time begins as soon as the drenched test pad is placed upon the specimen.4.2 Conditioning method 86: Basic cosmetic substances and artificial hand sweatSee Table 1.4.3 Conditioning method 87: Laboratory agentsSee Table 2.4.4 Conditioning method 88: Produc
42、tion plant resourcesSee Table 3.4.5 Conditioning method 89: Fuels and resources for aircraft, naval vessels, and land vehiclesSee Table 4.9 DIN ISO 9022-12:2016-02 Table 1 Degrees of severity for conditioning method 86: Basic cosmetic substances and artificial hand sweatDegree of severity 01 02 03Te
43、st agents Paraffin oil, high purityGlycerine, high purityVaseline, whiteaLanoline (unguentum molle)aCold cream (unguentum leniens)aArtificial hand sweatbExposure time, days 1 7 30State of operation 1 or 2aFelt pad drenched in melted test agent.bComposition (high purity):4,0 g sodium chloride (NaCl)1
44、,0 g urea CO(NH2)23,5 g ammonium chloride (NH4Cl)3 ml lactic acid CH3CH(OH)COOH0,5 ml acetic acid (CH3COOH)0,5 ml pyruvic acid (CH3COCOOH)1,7 ml butyric acid (C3H7COOH)Add sufficient distilled water to make 1 000 ml of solution.Table 2 Degrees of severity for conditioning method 87: Laboratory agent
45、sDegree of severity 01 02 03 04Test agents Sulfuric acid HSO 95 to 97 Nitric acid24(),%(/)%(/)mm mmHNO 65 Hydrochloric acid HCI 25 Ace3(),%(/),%(/)mmmm()ttic acid CHCOOH 96 Trichloroacetic acid CCl C33(),%(/)(mmOOOH 4 Potassium hydroxide KOH solution 5 ), %( /),%00mm() (/)mmhigh purityMixture ratio
46、of test agent/distilled water(m/m)1:20 1:10 1:1 1:0Exposure time min 120 10Test agents Ethanol CHOHAcetone CH COCHAcetic acid ethyl ester ()()2533()()()CH COOC HDichloromethane CH ClXylene CHCH3252264 32highpurityExposure time min 5 15 30 60State of operation 1 or 210DIN ISO 9022-12:2016-02 Table 3
47、Degrees of severity for conditioning method 88: Production plant resourcesDegree of severity 01 02 03Test agentsaHydraulic oil (H-LP), kinematic viscosity: 46 mm2/s at 40 CSynthetic oil, ester-base (e.g. dioctylosebacate)Synthetic oil, polyglycol-base or polysilicone-base (e.g. dimethylpolysiloxane
48、kine-matic viscosity: 100 mm2/s at 25 C)Synthetic oil, phosphate-ester baseCooling lubricating emulsion, for machining purposes (cooling lubrication essencebin water), mass fraction w (essence) = 0,04Cooling lubricating solution for grinding purposes (free of mineral oils). Synthetic additives mass
49、fraction w = 0,05General-purpose detergentPerchlorethyleneTrichlorethaneTrichlorethylenehigh puriityEthanol, mass fraction w (ethanol) = 0,96 (denaturated by means of methylethylke-tone)Exposure time h 2 6 16State of operation 1 or 2aThe relevant specification specifies the commercial type, if not indicated in this Table.bComposition of essence:mineral oil, mass fraction w1 0,04EP additives, sulfur-, chlorin
