EN ISO 13787:2003

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principles for the determination of declared thermal
  conductivity
5 Determination and verification of declared thermal
  conductivity
  5.1 Measurement of thermal conductivity
  5.2 Procedure for verification
Annex A (informative) Verification based on curve comparison
A.1 General
A.2 Principle
A.3 Test
    A.3.1 Measurement of thermal conductivity
    A.3.2 Procedure for comparison and decision
Annex B (informative) Statistical method to establish the
        declared thermal conductivity curve
B.1 General
B.2 Symbols and units
B.3 Establishment of declared values
    B.3.1 A large number of thermal conductivity results are
          available (n > 50 at each temperature)
    B.3.2 A small number of data are available (n <= 50)
B.4 Verification of the declared curve
B.5 Examples
    B.5.1 Establishment of the declared curve
    B.5.2 Verification of the declared curve
Annex C (informative) Illustration of the procedure to verify
        thermal conductivity
Bibliography

ISO 13787:2003 establishes a procedure for the determination and verification of declared thermal conductivity, as a function of temperature, of thermal insulating materials and products used for the insulation of building equipment and industrial installations.Informative annex B gives an optional method for establishing the thermal conductivity curve or table from measured values.ISO 13787:2003 is not applicable to thermal insulating products used in building envelopes. For the procedures which are used for these products, see ISO 10456, "Building materials and products - Procedures for determining declared and design thermal values".