BS ISO 9022-2-2015 Optics and photonics Environmental test methods Cold heat and humidity《光学和光子学 环境试验方法 冷、热和潮气》.pdf

1、BSI Standards Publication BS ISO 9022-2:2015 Optics and photonics Environmental test methods Part 2: Cold, heat and humidityBS ISO 9022-2:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 9022-2:2015. It supersedes BS ISO 9022-2:2002 which is withdrawn. Th

2、e UK participation in its preparation was entrusted to Technical Committee CPW/172, Optics and Photonics. 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

3、are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 86767 5 ICS 37.020 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of

4、the Standards Policy and Strategy Committee on 31 March 2015. Amendments/corrigenda issued since publication Date T e x t a f f e c t e d ISO 2015 Optics and photonics Environmental test methods Part 2: Cold, heat and humidity Optique et photonique Mthodes dessais denvironnement Partie 2: Froid, cha

5、leur et humidit INTERNATIONAL STANDARD ISO 9022-2 Third edition 2015-03-01 Reference number ISO 9022-2:2015(E)BS ISO 9022-2:2015ISO 9022-2:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015 All rights reserved. Unless otherwise specified, no part of this publication may be

6、reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requ

7、ester. 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.iso.org Published in SwitzerlandBS ISO 9022-2:2015ISO 9022-2:2015(E)Foreword iv Introduction vi 1 Scope . 1 2 Normative references 1 3 General information and te

8、st conditions 1 4 Conditioning 1 4.1 General . 1 4.2 Constant stress conditions 2 4.2.1 General 2 4.2.2 Conditioning method 10: Cold . 2 4.2.3 Conditioning method 11: Dry heat . 2 4.2.4 Conditioning method 12: Damp heat . 2 4.2.5 Conditioning method 13: Condensation 2 4.3 Cycling exposure conditions

9、 3 4.3.1 General 3 4.3.2 Conditioning method 14: Slow temperature change 3 4.3.3 Conditioning method 15: Rapid temperature change (temperature shock) . 4 4.3.4 Conditioning method 16: Damp heat, cyclic 5 5 Procedure. 7 5.1 General . 7 5.2 Pre-test . 7 6 Environmental test code . 7 7 Specification 8

10、ISO 2015 All rights reserved iii Contents PageBS ISO 9022-2:2015ISO 9022-2:2015(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out throu

11、gh 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 with ISO, also take part in the work. ISO collabora

12、tes closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval c

13、riteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subjec

14、t of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade

15、name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Tech

16、nical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee responsible for this document is ISO/TC 172, Optics and photonics, Subcommittee SC 1, Fundamental standards. This third edition cancels and replaces the second edition (ISO 9022-2:2002), of which

17、it constitutes a minor revision. 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: Cold, heat and humidity Part 3: Mechanical stress Part 4: Salt mist Part 6: Dust Part 7: Resistance to dr

18、ip 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: Combined contamination, solar radiation Part 20: Humid atmosphere containing sulfur dioxide or hydroge

19、n sulfideiv ISO 2015 All rights reservedBS ISO 9022-2:2015ISO 9022-2:2015(E) 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 ISO 2015 All rights reserved vBS ISO 9022-2:2015ISO 90

20、22-2:2015(E) Introduction Optical 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 to remain within defined specifications. The type and severity of these parameters depend o

21、n 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 subtropics are totally different from those found when they are used in arctic regions. Individual p

22、arameters 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 their environment throughout their life. This expectation can be assessed by exposure of t

23、he 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 period of time. In order to allow assessment and comparison of the response of optical instrum

24、ents 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, modified where necessary to take into account features special to optical instruments. As

25、 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 other fields. For this reason, the principal function of the instrument is to be assess

26、ed 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 International Standard in the field concerned should be applied. Cases may arise where a

27、pplication of both ISO 9022 and other appropriate International Standards will be necessary.vi ISO 2015 All rights reservedBS ISO 9022-2:2015Optics and photonics Environmental test methods Part 2: Cold, heat and humidity 1 Scope This part of ISO 9022 specifies the methods relating to the environment

28、al 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 temperature and/or humidity. The purpose of the testing is to investigate to what extent op

29、tical, climatic, mechanical, chemical, and electrical (including electrostatic) performance characteristics of the specimen are affected by temperature and/or humidity. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensa

30、ble for its application. For dated references, only the 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 testing 3 General inform

31、ation and test conditions The specimen is exposed to climatic stress in conditioning chambers or cabinets providing air circulation. The size of the specimens and their arrangement shall be such as to ensure a uniform conditioning of all specimens. Where condensation is likely to occur, the condensa

32、te shall be prevented from dripping onto the specimen. Where heat-dissipating specimens are involved, the relevant specification shall state the number, method of installation and location of the heat sensors. WARNING Persons entering test chambers with dew-point temperatures of equal to or greater

33、than 38 C must be equipped with breathing apparatus (e.g. conditioning methods 12, 13, and 16). 4 Conditioning 4.1 General The required exposure time shall not commence until all parts of the specimen have reached a temperature within at least 3 K of the test chamber temperature. For heat-dissipatin

34、g specimens, the period of exposure or dwell time (conditioning methods 14 and 15) shall not begin, or end, until the temperature of the specimen changes not more than 1 K within 1 h at the stabilized test chamber temperature. The last hour of the temperature soaking time shall be considered to be t

35、he first hour of the exposure period. INTERNATIONAL ST ANDARD ISO 9022-2:2015(E) ISO 2015 All rights reserved 1BS ISO 9022-2:2015ISO 9022-2:2015(E) 4.2 Constant stress conditions 4.2.1 General During exposure to constant stress conditions, the temperature shall be changed sufficiently slowly to prev

36、ent the specimen from being damaged. When testing to conditioning methods 11 and 12, the maximum relative humidity also applies to the temperature change phase. The relevant specification shall state whether dew formation (condensation) on the specimen is acceptable. 4.2.2 Conditioning method 10: Co

37、ld See Table 1. Table 1 Degrees of severity for conditioning method 10: Cold Degree of severity 01 02 03 04 05 06 07 08 09 10 Test chamber temperature C 0 3 10 3 15 3 20 3 25 3 30 3 35 3 40 3 55 3 65 3 Exposure time h 16 State of operation 0 or 1 or 2 a 0 or 1 aWhen testing to degree of severity 09

38、is required, state of operation 2 should be justified in the relevant specification. 4.2.3 Conditioning method 11: Dry heat See Table 2. Table 2 Degrees of severity for conditioning method 11: Dry heat Degree of severity 01 02 03 04 05 06 07 08 Test chamber temperature C 10 2 40 2 55 2 63 2 70 2 85

39、2 70 2 85 2 Relative humidity % 40 Exposure time h 16 6 6 2 2 State of operation 0 or 1 or 2 0 or 1 0 or 1 or 2 0 or 1 4.2.4 Conditioning method 12: Damp heat See Table 3. Table 3 Degrees of severity for conditioning method 12: Damp heat Degree of severity 01 02 03 04 05 06 07 Climatic conditions 40

40、 C 2 C and 90 % to 95 % r.h. 55 C 2 C and 90 % to 95 % r.h. Exposure time 24 h 4 d 10 d 21 d 56 d 6 h 16 h State of operation 0 or 1 or 2 a aState of operation 2 during the last 4 h of exposure only. 4.2.5 Conditioning method 13: Condensation See Table 4.2 ISO 2015 All rights reservedBS ISO 9022-2:2

41、015ISO 9022-2:2015(E) Table 4 Degrees of severity for conditioning method 13: Condensation Degree of severity 01 02 03 04 05 06 Climatic conditions 40 C 2 C and approximately 100 % r.h., including condensation on specimens Exposure time 6 h 16 h 2 d 4 d 8 d 16 d State of operation 0 or 1 or 2 a aSta

42、te of operation 2 during the last 4 h of exposure only. 4.3 Cycling exposure conditions 4.3.1 General When applying conditioning methods 14 and 15, the specimens shall have reached a temperature at least within 3 K of the test chamber temperatures t 1and t 2not later than at the end of the dwell tim

43、es shown in the respective tables. If the requirement cannot be met, owing to large-sized specimens, a pre- test may be performed to determine the dwell times required. When applying conditioning method 15, intermediate storage (e.g. overnight) will be acceptable at t 2only. 4.3.2 Conditioning metho

44、d 14: Slow temperature change See Table 5 and Figure 1. Table 5 Degrees of severity for conditioning method 14: Slow temperature change Degree of severity 01 02 03 04 05 06 07 08 09 Test chamber temper- ature C t 2 40 2 55 2 70 2 55 2 63 2 70 2 70 2 70 2 85 2 t 1 10 3 25 3 25 3 40 3 35 3 40 3 50 3 6

45、5 3 65 3 Temperature difference K 50 80 95 95 98 110 120 135 150 Number of cycles 5 Dwell time at t 1and t 2 Until specimen has reached a temperature at least within 3 K of the test chamber tem- perature but not less than 2,5 h. For heat-dissipating specimens, refer to 4.1. Test chamber temperature

46、change rate Between 0,2 K/min and 2 K/min. State of operation 0 or 1 or 2 a aWhen testing to degrees of severity 04 to 09, state of operation 2 should be justified in the relevant specification. ISO 2015 All rights reserved 3BS ISO 9022-2:2015ISO 9022-2:2015(E) t 0 t1 t2 T 3 1 3 3 1 2 Key 1 dwell ti

47、me 2 ambient atmospheric conditions 3 0,2 K/min to 2 K/min t duration, h T temperature, C Figure 1 Cycling curve for conditioning method 14 (slow temperature change) 4.3.3 Conditioning method 15: Rapid temperature change (temperature shock) See Table 6 and Figure 2. Table 6 Degrees of severity for c

48、onditioning method 15: Temperature shock Degree of severity 01 02 03 04 05 Test chamber temperature C t 2 20 2 40 2 55 2 70 2 70 2 t 1 10 2 25 2 40 2 55 2 65 2 Temperature difference K 30 65 95 125 135 Number of cycles 5 Dwell time at t 1and t 2 Until specimen has reached a temperature at least with

49、in 3 K of the test chamber temperature but not less than 2,5 h. For heat-dissipating specimens, refer to 4.1. Time allowed for temperature change rate Max. 20 s for equipment of up to 10 kg; beyond 10 kg as short as possible but not more than 10 min. The time actually taken should be documented in the test report. State of operation 0 or 1 or 2 a aState