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I.S. EN 12213:1999

Current

Current

The latest, up-to-date edition.

CRYOGENIC VESSELS - METHODS FOR PERFORMANCE EVALUATION OF THERMAL INSULATION

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

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.


Dates of withdrawal of national standards are available from NSAI.

€53.00
Excluding VAT

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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