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I.S. EN 60068-3-11:2007

Current
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
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2007

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

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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