NS EN 12412-2 : 1ED 2003
Current
The latest, up-to-date edition.
THERMAL PERFORMANCE OF WINDOWS, DOORS AND SHUTTERS - DETERMINATION OF THERMAL TRANSMITTANCE BY HOT BOX METHOD - PART 2: FRAMES
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols, units and subscripts
4 Principle
5 Requirements for test specimen and apparatus
5.1 General
5.2 Surround panels
5.3 Specimen requirements and location
5.3.1 Complete frames for windows and doors
5.3.2 Frame and sash, transom or mullion profile sections
5.4 Calibration panels
5.5 Temperature measurement and baffle positions
6 Test procedure
6.1 General
6.2 Calibration measurements
6.2.1 General
6.2.2 Total surface resistance
6.2.3 Surface resistances and surface coefficients of heat
transfer
6.2.4 Surround panel and edge effects
6.3 Measurement procedure for test specimens
7 Test report
Annex A (normative) Determination of environmental temperature
A.1 General
A.2 Environmental temperature
A.3 Mean radiant temperature
A.4 Convective surface heat transfer coefficient
Annex B (normative) Linear thermal transmittance of the
edge zone
Annex C (informative) Example of calibration test and
measurement of frame specimen
C.1 Calibration test with panel size 1,23 m x 1,48 m
C.2 Frame specimen measurement
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.