I.S. EN 60068-3-11:2007
Current
The latest, up-to-date edition.
ENVIRONMENTAL TESTING - PART 3-11: SUPPORTING DOCUMENTATION AND GUIDANCE - CALCULATION OF UNCERTAINTY OF CONDITIONS IN CLIMATIC TEST CHAMBERS
Hardcopy , PDF
English
01-01-2007
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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Concept of uncertainty
4.1 Uncertainty, error and 'true value'
4.2 Statements of uncertainty
4.3 Combining uncertainties
5 Tolerance
6 Humidity and temperature measurement
7 Methods for determining climatic test chamber uncertainties
7.1 Empty chamber
7.2 Typical load
7.3 Measurement of conditions in the chamber during the test
7.4 Conditions to measure
7.5 Measurements required
7.6 Sources of uncertainty
7.7 Essential contributions of uncertainty
8 Estimation of uncertainty components and their combination
9 Overall uncertainty of temperature measurement
9.1 General
9.2 Further considerations
10 Overall uncertainty of relative humidity measurement
10.1 Uncertainty of temperature measurement at each sensor point
10.2 Uncertainty of the relative humidity measurement
11 Anomalous data and presentation of results
11.1 Average case analysis
11.2 Worst case analysis
Annex A (informative) Measurement data sets - Loaded chamber
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Bibliography
Shows how to estimate the uncertainty of steady-state temperature and humidity conditions in temperature and humidity chambers. Since this is inextricably linked to the methods of measurement, these are also described.
| DevelopmentNote |
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
|
| DocumentType |
Standard
|
| Pages |
78
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| IEC 60068-3-11:2007 | Identical |
| BS EN 60068-3-11:2007 | Identical |
| NBN EN 60068-3-11 : 2007 | Identical |
| DIN EN 60068-3-11 : 2008 | Identical |
| NF EN 60068-3-11 : 2007 | Identical |
| EN 60068-3-11:2007 | Identical |
| BS 1339-1:2002 | Humidity Terms, definitions and formulae |
| IEC 60068-3-6:2001 | Environmental testing - Part 3-6: Supporting documentation and guidance - Confirmation of the performance of temperature/humidity chambers |
| PD 6461-3:1995 | General metrology Guide to the expression of uncertainty in measurement (GUM) |
| ISO/IEC Guide 98:1993 | Guide to the expression of uncertainty in measurement (GUM) |
| EN 60068-3-6:2002 | Environmental testing - Part 3-6: Supporting documentation and guidance - Confirmation of the performance of temperature/humidity chambers |
| EN 60068-3-5:2002 | Environmental testing - Part 3-5: Supporting documentation and guidance - Confirmation of the performance of temperature chambers |
| ISO 3534-2:2006 | Statistics — Vocabulary and symbols — Part 2: Applied statistics |
| IEC 60068-3-5:2001 | Environmental testing - Part 3-5: Supporting documentation and guidance - Confirmation of the performance of temperature chambers |
| ISO 3534-1:2006 | Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability |
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