DIN ISO 9022-14-2016 Optics and photonics - Environmental test methods - Part 14 Dew hoarfrost ice (ISO 9022-14 2015)《光学和光子学 环境试验方法 第14部分 露、霜及结冰试验(ISO 9022-14-2015)》.pdf

《DIN ISO 9022-14-2016 Optics and photonics - Environmental test methods - Part 14 Dew hoarfrost ice (ISO 9022-14 2015)《光学和光子学 环境试验方法 第14部分 露、霜及结冰试验(ISO 9022-14-2015)》.pdf》由会员分享，可在线阅读，更多相关《DIN ISO 9022-14-2016 Optics and photonics - Environmental test methods - Part 14 Dew hoarfrost ice (ISO 9022-14 2015)《光学和光子学 环境试验方法 第14部分 露、霜及结冰试验(ISO 9022-14-2015)》.pdf（11页珍藏版）》请在麦多课文档分享上搜索。

1、February 2016 English price group 8No 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!%LFi“2413570www.din.deDIN

2、 ISO 9022-14Optics and photonics Environmental test methods Part 14: Dew, hoarfrost, ice (ISO 9022-14:2015),English translation of DIN ISO 9022-14:2016-02Optik und Photonik Umweltprfverfahren Teil 14: Tau, Reif, Eis (ISO 9022-14:2015),Englische bersetzung von DIN ISO 9022-14:2016-02Optique et photon

3、ique Mthodes dessais denvironnement Partie 14: Rose, givre, glace (ISO 9022-14:2015),Traduction anglaise de DIN ISO 9022-14:2016-02SupersedesDIN ISO 9022-14:2001-05www.beuth.deDocument comprises 11 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be consid

4、ered authoritative.01.16 National foreword .3Introduction 51 Scope . 62 Normative references 63 General information and test conditions 64 Conditioning 65 Procedure. 75.1 General . 75.2 Preconditioning 75.3 Test sequence . 75.3.1 Conditioning method 75, degree of severity 01; conditioning method 76,

5、degrees of severity 01 and 02 75.3.2 Conditioning method 76, degree of severity 03 85.3.3 Conditioning method 77 . 85.4 Recovery . 85.5 Final test . 86 Environmental test code . 87 Specification 9Annex A (informative) Explanatory notes 10Contents PageA comma is used as the decimal marker. DIN ISO 90

6、22-14:2016-02 2National Annex NA (informative) Bibliography . 4National foreword This document (ISO 9022-14:2015) 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

7、 its preparation 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 possibil

8、ity that some of 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

9、Part 1: Definitions, 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 weatherin

10、g null Part 11: Mould 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 rando

11、m vibration null Part 23: Low pressure combined with cold, ambient temperature and dry and damp heat The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 9022-1 DIN ISO 9022-1 ISO 9022-4 DIN ISO 9022-4 Amendments This standard differs from D

12、IN ISO 9022-14:2001-05 as follows: a) normative references have been updated; b) the standard has been editorially updated; c) the text of International Standard ISO 9022-14:2015 has been adopted in its entirety. DIN ISO 9022-14:2016-02 3 Previous editions DIN 58390-14: 1986-09 DIN ISO 9022-14: 2001

13、-05 National Annex NA (informative) Bibliography DIN ISO 9022-1, Optics and photonics Environmental test methods Part 1: Definitions, extent of testing DIN ISO 9022-4, Optics and photonics Environmental test methods Part 4: Salt mist DIN ISO 9022-14:2016-02 4 IntroductionOptical instruments are affe

14、cted during their use by a number of different environmental parameters which they are required to resist without significant reduction in performance and to remain within defined specifications.The type and severity of these parameters depend on the conditions of use of the instrument (for example,

15、 in the laboratory or workshop) and on its geographical location. The environmental effects on optical instrument performance in the tropics and subtropics are totally different from those found when they are used in arctic regions. Individual parameters cause a variety of different and overlapping

16、effects on instrument performance.The manufacturer attempts to ensure, and the user naturally expects, that instruments will resist the likely rigours of their environment throughout their life. This expectation can be assessed by exposure of the instrument to a range of simulated environmental para

17、meters under controlled laboratory conditions. The severity of these conditions is often increased to obtain meaningful results in a relatively short period of time.In order to allow assessment and comparison of the response of optical instruments to appropriate environmental conditions, ISO 9022 co

18、ntains details of a number of laboratory tests which reliably simulate a variety of different environments. The tests are based largely on IEC standards, modified where necessary to take into account features special to optical instruments.As a result of continuous progress in all fields, optical in

19、struments are no longer only precision-engineered optical products, but, depending on their range of application, also contain additional assemblies from other fields. For this reason, the principal function of the instrument is to be assessed to determine which International Standard should be used

20、 for testing. If the optical function is of primary importance, then ISO 9022 is applicable, but if other functions take precedence then the appropriate International Standard in the field concerned should be applied. Cases can arise where application of both ISO 9022 and other appropriate Internati

21、onal Standards will be necessary.Optics and photonics Environmental test methods Part 14: Dew, hoarfrost, iceDIN ISO 9022-14:2016-02 5 1 ScopeThis part of ISO 9022 specifies the methods relating to the environmental tests of optical instruments including additional assemblies from other fields (e.g.

22、 mechanical, chemical, and electronic devices) under equivalent conditions, for their ability to resist the influence of dew, hoarfrost or ice.The purpose of testing is to investigate to what extent the optical, climatic, mechanical, chemical, and electrical (including electrostatic) performance cha

23、racteristics of the specimen are affected by dew, hoarfrost, or ice.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 the edition cited applies. For undated references,

24、 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 testingISO 9022-4, Optics and photonics Environmental test methods Part 4: Salt mist3 General information and test conditionsEx

25、posure to dew, hoarfrost, or ice is effected by rapid change of the environmental conditions in a chamber or by transferring the specimen from a cold chamber to a conditioned room. Instrument parts not exposed to hoarfrost or icing conditions during normal use should be protected from exposure to su

26、ch conditions during test.4 ConditioningTable 1 shows the conditioning methods 75 (dew), 76 (hoarfrost followed by the process of thawing), and 77 (ice covering followed by the process of thawing). Conditioning method 77 (ice covering followed by the process of thawing) includes two types of ice for

27、mation (see Annex A for details): rime ice: degree of severity 01 applies; glazed ice: degrees of severity 02 to 04 apply.DIN ISO 9022-14:2016-02 6 Table 1 Degrees of severity for conditioning methods 75, 76, and 77Conditioning method 75 76 77Step 1Degree of severity 01 01 02 03 01 02 03a04aTest cha

28、mber tem-peratureC 10 2 10 2 25 3 15 3 25 3Exposure timeUntil specimen has reached a temperature within 3 C of the test cham-ber temperatureb.Step 2Test chamber tem-peratureCNot applicable5 2 15 3 25 3Hoarfrost, rime ice, or glazed ice build-up on test surfacescmm0,5 to 22 to 45 to 720 to 3075Exposu

29、re timeUntil the specimen has reached a tem-perature within 3 C of the test chamber temperatureb.Step 3Test chamber tem-peratureC 30 2Relative humidity % 80 to 95Exposure timeUntil specimen has reached a temperature within 3 C of the test cham-ber temperatureb.State of operation 1 or 2aOnly applicab

30、le for outside-mounted naval equipment.bWhere heat-dissipating specimens are involved, temperature soaking shall be deemed to be satisfactory if, at stabilized test chamber temperature, the temperature of the specimen does not change by more than 3 C within one hour.cTest surfaces as specified by th

31、e relevant specification.5 Procedure5.1 GeneralThe test shall be conducted in accordance with the requirements of the relevant specification and with ISO 9022-1.5.2 PreconditioningUnless otherwise specified in the relevant specification, the surface of the specimen shall be properly cleaned using no

32、nresidue neutral cleaning agents only. After cleaning, the specimen shall be restored to service condition (as, for instance, by applying protecting grease, etc.).5.3 Test sequence5.3.1 Conditioning method 75, degree of severity 01; conditioning method 76, degrees of severity 01 and 02After temperat

33、ure stabilization in step 1, immediately expose the specimen to the environmental conditions of step 3. This can be done by transferring the specimen to a conditioned room or changing the test chamber conditions.DIN ISO 9022-14:2016-02 7 5.3.2 Conditioning method 76, degree of severity 03After tempe

34、rature stabilization of the specimen in step 1, proceed to step 2 and heat the test chamber to 5 C. Produce hoarfrost by directing water vapour or atomized spray against the specimen, using a fine nozzle spray gun arranged at a distance of 0,5 m from the specimen.If state of operation 2 is required,

35、 perform an intermediate test after completion of step 2, immediately proceed to step 3, and perform another intermediate test during the process of thawing.5.3.3 Conditioning method 775.3.3.1 Degree of severity 01After temperature stabilization of the specimen during step 1, proceed to step 2 and h

36、eat the test chamber to 5 C. Produce a build-up of opaque rime ice, as thick as required, on the specimen by directing a spray of atomized-water, pre-cooled to 5 C, against the specimen (using a coarse nozzled spray gun arranged at a distance of 0,2 m to 0,3 m from the specimen).Continue as specifie

37、d in 5.3.2.5.3.3.2 Degrees of severity 02 to 04After temperature stabilization of the specimen in step 1, proceed to step 2 and procedure a build-up of glazed ice on the specimen as required. This can be achieved by sprinkling or pouring freezing water on the specimen (in several layers, if necessar

38、y).If the test solution (salt water) specified in ISO 9022-4 is to be used for producing the build-up of glazed ice when testing to degrees of severity 03 and 04, the relevant specification shall include an appropriate note.Continue as specified in 5.3.2.5.4 RecoveryUnless otherwise specified in the

39、 relevant specification, superficially dry the specimen after removal from the test chamber. Do not use compressed air for drying. Restore specimen to ambient temperature.5.5 Final testCondensed moisture visible on optical surfaces within the specimen shall be acceptable provided that such films van

40、ish within the time interval specified in the relevant specification. Unless penetrated water can be detected by visual inspection, the relevant specification shall specify an appropriate method of verification.6 Environmental test codeThe environmental test code shall be as defined in ISO 9022-1, g

41、iving a reference to ISO 9022 and the codes for the conditioning method chosen, the degree of severity and the state of operation.EXAMPLE The environmental test of optical instruments for resistance to hoarfrost, conditioning method 76, degree of severity 03, state of operation 1, is identified as:E

42、nvironmental test ISO 9022-76-03-01N1)National footnote: In the original ISO document, the state of operation is erroneously given as “01“ in the designation instead of “1”. N1)DIN ISO 9022-14:2016-02 8 7 SpecificationThe relevant specification shall contain the following details:a) environmental te

43、st code;b) number of specimens;c) number, location, and method of installation of temperature sensors;d) position and mounting of specimen in the test chamber (e.g. on a turntable);e) size and position of the test surfaces on the specimen;f) method of producing hoarfrost or ice build-up, if other th

44、an described in 5.3.2 and 5.3.3;g) preconditioning if other than described in 5.2;h) type and scope of initial test;i) if state of operation 2 is required: time of operation;j) if state of operation 2 is required: type and scope of intermediate test;k) recovery, if other than described in 5.4;l) typ

45、e and scope of final test if other than described in 5.5;m) criteria for evaluation, e.g. potential amount of water allowed to penetrate, time within which moisture film shall vanish;n) type and scope of test report.DIN ISO 9022-14:2016-02 9 Annex A (informative) Explanatory notesA.1 GeneralDew, hoa

46、rfrost, or ice degrade or impede visibility through optical instruments or front windows. Ice build-up binds moving parts together and is much more difficult to remove than dew or hoarfrost. The operation and service life of optical instruments can be degraded as the necessity of employing manual, m

47、echanical, or chemical ice removal measures entails an increased hazard of damage to the instrument. One of the objectives of testing, therefore, is to evaluate gentle methods of removing ice build-up, hoarfrost, and dew from the instrument.A.2 DewThe formation of dew is caused by water vapour condensing from the surrounding air on the surface of instruments the temperature of which is above 0 C but below the dew point of the surrounding relative humidity. Dew can also occur on