CENELEC
Project
| Reference | EN 60068-3-11:2007 |
|---|---|
| Title | Environmental testing - Part 3-11: Supporting documentation and guidance - Calculation of uncertainty of conditions in climatic test chambers |
| Project Number | 17156 |
| Abstract/Scope | Demonstrates 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. This standard is equally applicable to all environmental enclosures, including rooms or laboratories. The methods used apply both to temperature chambers and combined temperature and humidity chambers. This standard is meant to help everyone using climatic test chambers. Those already familiar with uncertainty of measurement will find it useful for guidance on typical sources of uncertainty and how they should be quantified and combined. It is also intended to assist the first-time or occasional user who has little or no knowledge of the subject. To discuss uncertainty, it is important first to understand what is being measured or characterized. The calibration or characterization of the performance of a chamber is concerned with the humidity and temperature of the air in the chamber, as experienced by the item under test, at a given set point. This should not be confused with characterizing or calibrating the chamber sensor, which is a separate matter. |
| Status |
Published
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Status
| Current Stage code | 6060 |
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| Current Stage code date | 2007-06-28 |
| Current Stage code deadline | 2008-03-01 |
| Deadline date for vote |
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Details
| IEC Technical Body | IEC/TC 104 |
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| Reference Document | IEC 60068-3-11:2007 (EQV) |
| ICS | 19.040 - Environmental testing |
| Keywords | Environmental testing; Documentation; Uncertainty; Environmental chamber |
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| Special National Condition(s) |
Environment
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Information
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History
Implementation Dates
| date of Ratification (DOR) (1) | 2007-06-01 |
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| date of Availability (DAV) (2) | 2007-06-28 |
| date of Announcement (DOA) (3) | 2007-09-01 |
| date of Publication (DOP) (4) | 2008-03-01 |
| date of Withdrawal (DOW) (5) | 2010-06-01 |
Relations
| Supersedes | |
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| Superseded by | |
| Normative reference (6) | ISO 99:1996 ISO 3534-1:2006 ISO 3534-2:2006 EN 60068-3-5:2002 EN 60068-3-6:2002 ISO/IEC Guide 98:1995 |
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
