IEC 60068-1-2013 Environmental testing - Part 1 General and guidance《环境测试.第1部分 总则和导则》.pdf

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1、 IEC 60068-1 Edition 7.0 2013-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Environmental testing Part 1: General and guidance Essais denvironnement Partie 1: Gnralits et lignes directrices IEC60068-1:2013 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights re

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15、ients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60068-1 Edition 7.0 2013-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Environmental testing Part 1: General and guidance Essais denvironnement

16、Partie 1: Gnralits et lignes directrices INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE V ICS 19.040 PRICE CODE CODE PRIX ISBN 978-2-8322-1110-6 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique

17、Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60068-1 IEC:2013 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope . 7 2 Normative references . 8 3 Ter

18、ms and definitions . 8 4 Standard atmospheric conditions 11 4.1 Standard reference atmosphere 11 4.2 Standard atmospheres for referee measurements and tests 12 4.3 Standard atmospheric conditions for measurements and tests . 12 4.4 Recovery conditions 13 4.4.1 General . 13 4.4.2 Controlled recovery

19、conditions . 13 4.4.3 Recovery procedure 14 4.5 Standard conditions for assisted drying . 14 5 Use of test methods 14 6 Climatic sequence 14 7 Component climatic category 15 8 Application of tests . 15 9 Significance of the numerical value of a quantity 15 9.1 General . 15 9.2 Quantity expressed as

20、nominal value with tolerance 15 9.3 Quantity expressed as a range of values . 16 Annex A (normative) Component climatic category 18 Annex B (informative) General guidance 19 Annex C (informative) Environmental test tailoring . 25 Bibliography 31 Figure C.1 Environmental test tailoring process . 26 T

21、able 1 Standard atmospheres for referee measurements and tests 12 Table 2 Standard atmospheres for measurements and tests 13 Table 3 Standard conditions for assisted drying . 14 Table B.1 Choice of tests as a function of objectives and applications . 21 Table B.2 General sequence of tests . 23 Table

22、 B.3 Principal effects of single environmental parameters 24 Table C.1 Test tailoring process with information flow and the corresponding activities . 27 60068-1 IEC:2013 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ENVIRONMENTAL TESTING Part 1: General and guidance FOREWORD 1) The International El

23、ectrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic field

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26、n (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representat

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28、t be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications

29、. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, acce

30、ss to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including indi

31、vidual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon,

32、 this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of

33、 this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60068-1 has been prepared by IEC technical committee 104: Environmental conditions, classification and methods of test. This seventh

34、edition cancels and replaces the sixth edition, published in 1988, and constitutes a technical revision. The main changes with respect to the previous edition are listed below: updated normative reference list; indication of normative and informative annexes; new informative Annex C, Environmental t

35、est tailoring. 4 60068-1 IEC:2013 The text of this standard is based on the following documents: FDIS Report on voting 104/618/FDIS 104/627/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has bee

36、n drafted in accordance with the ISO/IEC Directives, Part 2. A list of all the parts in the IEC 60068 series, published under the general title Environmental testing, can be found on the IEC website. This standard should be used in conjunction with the relevant specification which will define the te

37、sts to be used, the required degree of severity for each of them, their order (if relevant), and the permissible performance limits. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.

38、ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 60068-1 IEC:2013 5 INTRODUCTION The IEC 60068 series contains fundamental information on environmental testing procedures and severities of te

39、sts. In addition, this Part 1 contains information on atmospheric conditions for measurement and testing. It is intended to be used in those cases where a relevant specification for a certain type of product (electrical, electromechanical or electronic equipment and devices, their subassemblies and

40、constituent parts and components), hereinafter referred to as the “specimen”, is to be prepared, so as to achieve uniformity and reproducibility in the environmental testing of this product. NOTE 1 Although primarily intended for electrotechnical products, many of the environmental testing procedure

41、s in Part 2 of this series are equally applicable to other industrial products. The expression “environmental conditioning” or “environmental testing” covers the natural and artificial environments to which specimens may be subjected and exposed to in practice so that an assessment can be made of th

42、eir performance under conditions of storage, transportation, installation and use. The requirements for the performance of specimens subjected to environmental conditioning are not covered by this standard. The relevant specification for the specimen under test defines the allowed performance limits

43、 during and after environmental testing. When drafting a relevant specification or purchasing contract, only those tests should be specified that are necessary for the relevant specimen, taking into account the technical and economic aspects. The IEC 60068 series consists of: a) this first part, IEC

44、 60068-1 General and guidance, which deals with generalities; b) the second part, IEC 60068-2 Tests which publishes particular tests separately for different applications; c) the third part, IEC 60068-3 Supporting documentation and guidance, which deals with background information on a family of tes

45、ts. The families of tests comprising Part 2 of the IEC 60068 series are designated by the following upper-case letters: A: Cold B: Dry heat C: Damp heat (steady-state) D: Damp heat (cyclic) E: Impact (for example shock and rough handling shocks) F: Vibration G: Acceleration (steady state) H: (Awaiti

46、ng allocation) NOTE 2 Originally allotted to storage tests. J: Mould growth K: Corrosive atmospheres (for example salt mist) L: Dust and sand M: Air pressure (high or low) N: Change of temperature 6 60068-1 IEC:2013 P: (Awaiting allocation) NOTE 3 Originally allotted to “flammability”. Q: Sealing (i

47、ncluding panel sealing, container sealing and protection against ingress and leakage of fluid) R: Water (for example rain, dripping water) S: Radiation (for example solar, but excluding electromagnetic) T: Soldering (including resistance to heat from soldering) U: Robustness of terminations (of comp

48、onents) V: (Awaiting allocation) NOTE 4 Originally allocated to “acoustic noise” but “vibration, acoustically induced” will now be Test Fg, one of the “vibration” family of tests. W: (Awaiting allocation) Y: (Awaiting allocation) The letter X is used as a prefix together with a second lower-case let

49、ter providing for extension of the list of families of tests, e.g. Test Xa: Immersion in cleaning solvents. The letter Z is used to denote combined tests and composite tests as follows: Z is followed by a solidus (slash) and a group of lower-case letters relating to the combined or composite stresses, for example Test Z/am: Combined cold and low air pressure tests. If appropriate, a test may be designated as “primarily int