DIN EN 12213:1998-12
Current
The latest, up-to-date edition.
CRYOGENIC VESSELS - METHODS FOR PERFORMANCE EVALUATION OF THERMAL ISOLATION
Hardcopy , PDF
German, English
01-01-1998
National Foreword
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
6.3 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
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