I.S. EN 12213:1999
Current
The latest, up-to-date edition.
CRYOGENIC VESSELS - METHODS FOR PERFORMANCE EVALUATION OF THERMAL INSULATION
Hardcopy , PDF
English
01-01-1999
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.
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Foreword
Introduction
1 Scope
2 Definitions
3 General conditions for all methods
4 Measuring the heat leak by the loss of product method
4.1 General
4.2 Test procedure
4.3 Determination of the heat leak in units of energy
per unit time
4.4 Determination of the heat leak as a percentage of
product lost per 24 h
5 Determination of the holding time (open system) in days
from heat leak data
6 Holding times for closed systems
6.1 Determination of the equilibrium holding time from
heat leak data
6.2 Determination of the optimum equilibrium holding time
from heat leak data
6.3 Static experimental holding time
7 Test report
8 Bibliography
Annex A (normative) Conversion of measured volumetric gaseous
flow to mass flow
Annex B (normative) Correction of measured mass flow rate with
regard to deviation from reference conditions
Annex C (normative) Equivalent loss determination, for product
other than the test product
Specifies a practical method for determining the heat leak performance of cryogenic vessels.
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| DIN EN 12213:1998-12 | Identical |
| EN 12213:1998 | Identical |
| BS EN 12213:1999 | Identical |
| UNE-EN 12213:1999 | Identical |
| UNI EN 12213 : 2000 | Identical |
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