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PD IEC/TR 60721-4-0:2002

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Current

The latest, up-to-date edition.

Classification of environmental conditions. Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 Introduction
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-06-2003

FOREWORD
INTRODUCTION
1 Scope and object
2 Reference documents
3 Overview
   3.1 General remarks concerning IEC 60721
   3.2 General remarks concerning IEC 60068
   3.3 General remarks concerning IEC 60721-4
   3.4 Applicability and purpose of the tests
   3.5 Environmental testing
   3.6 Recommended tests
4 Explanation of terms used in IEC 60721-4
   4.1 Climatogram
   4.2 Ambient
   4.3 Correlation
   4.4 Transformation
   4.5 Environmental conditions
   4.6 Environmental test severities
   4.7 Product
   4.8 Slope (used in the dynamic tables, stationary
        vibration: random)
   4.9 Classes
5 Environmental tests
   5.1 Specialized products
   5.2 Failure mechanisms
   5.3 Acceptance criteria
   5.4 Severities and test methods
   5.5 Test programmes
   5.6 Selection of tests
   5.7 Environmental tests for storage and transportation
        conditions
   5.8 Environmental tests for 'in-use' condition
   5.9 Test durations
   5.10 Combined tests
   5.11 Sequence of tests and composite tests
6 Examples of transformation guidance
   6.1 Solar radiation
        6.1.1 Actinic/photo-degradation
        6.1.2 Thermal effects
   6.2 Heat irradiation
   6.3 Vibration testing
   6.4 Shock testing

Aims to recommend the environmental tests which may be chosen to demonstrate the capability of a product to function or survive satisfactorily as specified in the relevant specification when subjected to the climatic and dynamic conditions given by IEC 60721-3.

This part of IEC 60721 is a technical report dealing with the correlation and transformation of the conditions given in IEC 60721-3 to the environmental tests defined in IEC 60068-2. It is an introduction to the series of publications IEC 60721-4 which aims at providing the specification writer with guidance together with a set of easy-to-use tables to help correlate and transform these conditions.

The purpose of this technical report is to recommend the environmental tests which may be chosen to demonstrate the capability of a product to function or survive satisfactorily as specified in the relevant specification when subjected to the climatic and dynamic conditions given by IEC 60721-3. These test severities, including their suggested duration, are not intended to demonstrate the reliability of the product, guidance for which should be sought from the publications concerning the field of availability, reliability, maintainability and maintenance support.

Whilst it may not be possible to recommend severities for all types of product, locations and applications, it is possible to suggest tests which are adequate for the majority. Guidance information has been included with the suggested tests which describes how the severities have been chosen. The rationale contained in this guidance may also be used to help modify test severities when the conditions found in IEC 60721-3 do not adequately describe a particular environment or application.

Committee
GEL/104
DevelopmentNote
Supersedes 98/262327 DC (11/2003)
DocumentType
Standard
Pages
26
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
IEC TR 60721-4-0:2002 Identical

IEC TR 60721-4-6:2001+AMD1:2003 CSV Classification of environmental conditions - Part 4-6: Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Ship environment
IEC 60068-2-5:2010 Environmental testing - Part 2-5: Tests - Test Sa: Simulated solar radiation at ground level and guidance for solar radiation testing
IEC 60068-1:2013 Environmental testing - Part 1: General and guidance
IEC TR 60721-4-1:2001+AMD1:2003 CSV Classification of environmental conditions - Part 4-1: Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Storage
IEC 60721-3-7:1995+AMD1:1996 CSV Classification of environmental conditions - Part 3-7: Classification of groups of environmental parameters and their severities - Portable and non-stationary use
IEC 60721-3-5:1997 Classification of environmental conditions - Part 3: Classificationof groups of environmental parameters and their severities -Section 5: Ground vehicle installations
IEC TR 60721-4-4:2001+AMD1:2003 CSV Classification of environmental conditions - Part 4-4: Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Stationary use at non-weatherprotected locations
ISO 2533:1975 Standard Atmosphere
IEC 60068-2-64:2008 Environmental testing - Part 2-64: Tests - Test Fh: Vibration, broadband random and guidance
ISO 12048:1994 Packaging Complete, filled transport packages Compression and stacking tests using a compression tester
IEC TR 60721-4-2:2001+AMD1:2003 CSV Classification of environmental conditions - Part 4-2: Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Transportation
IEC 60721-2-1:2013 Classification of environmental conditions - Part 2-1: Environmental conditions appearing in nature - Temperature and humidity
IEC TR 60721-4-3:2001+AMD1:2003 CSV Classification of environmental conditions - Part 4-3: Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Stationary use at weatherprotected locations
IEC TR 60721-4-5:2001+AMD1:2003 CSV Classification of environmental conditions - Part 4-5: Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Ground vehicle installations
IEC 60721-3-0:1984+AMD1:1987 CSV Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Introduction
IEC 60721-3-2:1997 Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 2: Transportation
IEC TR 60721-4-7:2001+AMD1:2003 CSV Classification of environmental conditions - Part 4-7: Guidance for the correlation and transformation of environmental condition classes of IEC 60721-3 to the environmental tests of IEC 60068 - Portable and non-stationary use
IEC 60721-3-3:1994+AMD1:1995+AMD2:1996 CSV Classification of environmental conditions - Part 3-3: Classification of groups of environmental parameters and their severities - Stationary use at weatherprotected locations
IEC 60721-2-4:1987+AMD1:1988 CSV Classification of environmental conditions - Part 2-4: Environmental conditions appearing in nature - Solar radiation and temperature
ISO 554:1976 Standard atmospheres for conditioning and/or testing — Specifications
IEC 60721-3-6:1987 Classification of environmental conditions. Part 3: Classification of groups of environmental parameters and their severities. Ship environment
IEC 60721-2-3:2013 Classification of environmental conditions - Part 2-3: Environmental conditions appearing in nature - Air pressure
ISO 4180-2:1980 Complete, filled transport packages — General rules for the compilation of performance test schedules — Part 2: Quantitative data
IEC 60721-3-1:1997 Classification of environmental conditions - Part 3 Classification of groups of environmental parameters and their severities - Section 1: Storage

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