1、August 2015 Translation by DIN-Sprachendienst.English price group 10No 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
2、 37.020!%DF|“2333589www.din.deDDIN ISO 9022-7Optics and photonics Environmental test methods Part 7: Resistance to drip or rain (ISO 9022-7:2015),English translation of DIN ISO 9022-7:2015-08Optik und Photonik Umweltprfverfahren Teil 7: Bestndigkeit gegen Tropfwasser oder Regen (ISO 9022-7:2015),Eng
3、lische bersetzung von DIN ISO 9022-7:2015-08Optique et photonique Mthodes dessais environnementales Partie 7: Rsistance au ruissellement ou la pluie (ISO 9022-7:2015),Traduction anglaise de DIN ISO 9022-7:2015-08SupersedesDIN ISO 9022-7:2007-02www.beuth.deDocument comprises 16 pagesIn case of doubt,
4、 the German-language original shall be considered authoritative.07.15 A comma is used as the decimal marker. Nationale foreword .3Introduction 51 Scope . 62 Normative references 63 General information and test conditions 64 Conditioning 64.1 Conditioning method 72: Drip . 64.2 Conditioning method 73
5、: Steady rain 74.3 Conditioning method 74: Driving rain 75 Procedure. 75.1 General . 75.2 Preconditioning 75.3 Recovery . 75.4 Final test . 76 Environmental test code . 87 Specification 13Annex A (informative) Explanatory notes . 14Contents PageDIN ISO 9022-7:2015-08 2National Annex NA (informative)
6、 BiB bliography .4National foreword This document (ISO 9022-7:2015) 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 was the DIN-Normenausschuss F
7、einmechanik und Optik (DIN Standards Committee Optics and Precision Mechanics), Working Committee NA 027-01-02 AA Grundnormen der Optik, Working Group NA 027-01-02-03 AK Umweltbedingungen und -prfungen fr optische Gerte. Attention is drawn to the possibility that some of the elements of this documen
8、t 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: Part 1: Definitions, extent of testing Part 2: Col
9、d, heat and humidity Part 3: Mechanical stress Part 4: Salt mist Part 6: Dust Part 7: Resistance to drip or rain Part 8: High internal pressure, low internal pressure, immersion Part 9: Solar radiation and weathering Part 11: Mould growth Part 12: Contamination Part 14: Dew, hoarfrost, ice Part 17:
10、Combined contamination, solar radiation Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide Part 22: Combined cold, dry heat or temperature change with bump or random vibration Part 23: Low pressure combined with cold, ambient temperature and dry and damp heat The DIN Standards c
11、orresponding to the International Standards referred to in this document are as follows: ISO 9022-1 DIN ISO 9022-1 ISO 9022-2 DIN ISO 9022-2 ISO 9022-8 DIN ISO 9022-8 Amendments This standard differs from DIN ISO 9022-7:2007-02 as follows: a) normative references have been updated; b) the standard h
12、as been editorially updated; c) the text of International Standard ISO 9022-7:2015 has been adopted in its entirety. Previous editions DIN 58390-7: 1983-01, 1991-10 DIN ISO 9022-7: 1999-05, 2007-02 DIN ISO 9022-7:2015-08 3 National Annex NA (informative) Bibliography DIN ISO 9022-1, Optics and photo
13、nics Environmental test methods Part 1: Definitions, extent of testing DIN ISO 9022-2, Optics and photonics Environmental test methods Part 2: Cold, heat and humidity DIN ISO 9022-8, Optics and photonics Environmental test methods Part 8: High internal pressure, low internal pressure, immersion DIN
14、ISO 10109, Optics and photonics Guidance for the selection of environmental tests DIN ISO 9022-7:2015-08 4 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 an
15、d 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 subtropi
16、cs 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 per
18、iod 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
21、 International 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.Optics and photonics Environmental test methods Part 7: Resistance to drip or rainDIN ISO 9022-7:2015-08 5 1 ScopeThis
22、part of ISO 9022 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 drip or rain.The purpose
23、of testing is to investigate to what extent the optical, climatic, mechanical, chemical, and electrical (including electrostatic) performance characteristics of the specimen are affected by drip or rain. Contamination of drip or rain water due to impurities in the air is to be ignored for the purpos
24、es of this part of ISO 9022.2 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, the latest edition of the referenced do
25、cument (including any amendments) applies.ISO 9022-1, Optics and photonics Environmental test methods Part 1: Definitions, extent of testing3 General information and test conditionsAt the beginning of exposure, the temperature of the water shall be below that of the specimen. During exposure, the sp
26、ecimen shall be mounted in the possible operating positions on a rotary table which rotates at a speed of 1 r/min to 2 r/min about its axis perpendicular to the sprinkling area. Prior to testing, the required rain or drip rate shall be measured and set in the centre of the sprinkling area occupied b
27、y the specimen.Measurement of the rain rate or drip rate shall be performed using the Hellman rain gauge (see A.3). If various measuring areas exist and/or several measurements are performed, the mean value for all measurements shall lie within the limits specified in Table 1, Table 2, and Table 3 f
28、or the required rain rates.4 Conditioning4.1 Conditioning method 72: DripThe drip shall be produced with the test apparatus shown in Figure 1. This size of the test apparatus and the dispenser plate (see Figure 2) shall be determined by the size of the specimens. Specimens requiring a dispenser plat
29、e of more than 1 m2may be tested in sections. The required water level above the dispenser plate shall be regulated by a float valve and/or overflows (see Figure 1). Decalcified or fully desalted water shall be used to prevent blockage of the fine holes in the dispenser plate. The distance between t
30、he specimen and the dispenser plate shall not be less than 1 m. Care shall be taken to ensure that every point of the possible upper sides of the specimen are exposed to the drip during the test.DIN ISO 9022-7:2015-08 6 4.2 Conditioning method 73: Steady rainThe test shall be performed with tap wate
31、r (drinking water) or with water prepared in accordance with 4.1. The shower heads used shall correspond to those shown in Figure 3. The swivelling shower heads shall be arranged in such a way that the required rainfall rate is evenly distributed over the sprinkling area. The measurement of the rain
32、 rate shall be performed in accordance with Clause 3. The number of shower heads depends upon the size of the specimen. The shower heads shall be positioned at least 2 m above the highest surface of the specimen. A recommended arrangement of the shower heads is given in Annex A.4.3 Conditioning meth
33、od 74: Driving rainThe requirements of 4.2 shall apply for producing the rainfall. The wind generator shall be arranged so that the rain falls as evenly as possible on the specimen.During the exposure, the rotary table bearing the specimen shall be erected approximately 2 m in the direction of the w
34、ind behind the centre of the sprinkled area which would be formed if no wind were applied.Prior to insertion of the specimen in the test apparatus, the wind velocity and the rain rate shall be measured in the area where the centre of the specimen will be located during exposure. A rain-catching meta
35、l sheet as shown in Figure 4 shall be inserted in the Hellman rain gauge.5 Procedure5.1 GeneralThe test shall be conducted in accordance with the requirements of the relevant specification and with ISO 9022-1.5.2 PreconditioningIf not specified in the relevant specification, the surface of the speci
36、men shall be properly cleaned prior to exposure. To this end, only such neutral cleaning agents shall be used that do not leave a film on or attack the surface of the specimen. After cleaning, the specimen shall be restored to service condition (e.g. by the application of protective grease).5.3 Reco
37、veryIf not specified in the relevant specification, the surface of the specimen shall be dried. Blowing with compressed air is not permitted. The temperature shall then be adjusted to ambient conditions.5.4 Final testAfter recovery, internal optical surfaces of the specimen might show a moisture fil
38、m. This shall disappear in the time specified in the relevant specification.In the event that penetrated water cannot be detected by visual inspection, a method of examining whether moisture has penetrated shall be specified in the relevant specification.DIN ISO 9022-7:2015-08 7 6 Environmental test
39、 codeThe environmental test code shall be as defined in ISO 9022-1, giving 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 steady rain, conditioning me
40、thod 73, degree of severity 01, state of operation 1, is identified as:Environmental test ISO 9022-73-01-1Table 1 Degrees of severity for conditioning method 72: DripDegree of severity 01 02 03 04 05 06 07 08 09Specimen temperature at beginning of exposureC 15 to 35Difference between specimen and wa
41、ter temperature at beginning of exposureK 2 to 20Water level above dispenser plate mm 10 40 75Drip rate mm/min 1,5 0,5 3,5 1 5,5 1Exposure time min 1 5 15 5 15 30 5 15 30State of operation 0 or 1 or 2NOTE For testing with degrees of severity 01 to 06, the test apparatus is to be filled prior to expo
42、sure in such a way that the water drips evenly from each hole. The water level is to be lowered to the required volume (e.g. by opening the overflow) only after this has been guaranteed. The use of surface-active agents is not permitted.Table 2 Degrees of severity for conditioning method 73: Steady
43、rainDegree of severity 01 02Specimen temperature at beginning of exposure C 15 to 35 15 to 35Difference between specimen and water temperature at beginning of exposureK 2 to 20 2 to 20Rain rate mm/min 5 2 20 3Exposure time min 30 2 30 2State of operation 0 or 1 or 2Table 3 Degrees of severity for co
44、nditioning method 74: Driving rainDegree of severity 01 02 03 04 05 06Specimen temperature at beginning of exposureC 15 to 35Difference between specimen and water temperatures at beginning of exposureK 2 to 20Wind velocities at specimen location m/s 18 3 33 3Rain rate mm/min 2 1 10 3 2 1Exposure tim
45、e min 10 30 10 30 10 30State of operation 0 or 1 or 2NOTE In the low rain rate required for degrees of severity 01, 02, 05, and 06, the water is not always distributed in the form of drops through the shower heads. However, this is counteracted by the strong turbulence of the water caused by the hig
46、h wind velocity.DIN ISO 9022-7:2015-08 8 Dimensions in millimetres321754010Key1 overflows ( 20)2 outflow to empty apparatus after test3 inflowNOTE Any details not given are to be chosen appropriately.Figure 1 Test apparatus for drip conditioning methodDIN ISO 9022-7:2015-08 9 Dimensions in millimetres32125,425,4Key1 plate made of CuZn alloy, 0,8 mm thick2 holes with diameter of 0,35 mm bored through indentations in metal sheet3 indentations produced with steel rod of 4,8 mm diameter, radius at tip 5 mm, pressed
