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BSI PD CEN/TS 15548-1:2014

BSI PD CEN/TS 15548-1:2014

$142.49

Thermal insulation products for building equipment and industrial installations. Determination of thermal resistance by means of the guarded hot plate method – Measurements at elevated temperatures from 100 °C to 850 °C

Published By Publication Date Number of Pages
BSI 2014 28
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This Technical Specification provides the additional information to that given in EN 12667 , EN 12664 , EN 12939 and ISO 8302 on the design of apparatus and operational procedures required to determine the thermal resistance of thermal insulation products in the temperature range 100 °C to 850 °C using the guarded hot plate method.

PDF Catalog

PDF Pages PDF Title
4 Contents Page
5 Foreword
6 Introduction
7 1 Scope
2 Normative references
3 Terms and definitions, symbols and units
3.1 Terms and definitions
3.2 Symbols and units
8 4 Principle
4.1 Apparatus
4.2 Measuring the density of heat flow rate
4.3 Measuring the temperature difference
4.4 Deriving the thermal resistance or transfer factor
4.5 Computing thermal conductivity or thermal transmissivity
9 4.6 Apparatus limits
4.7 Specimen limits
5 Apparatus description and design requirement
5.1 General
10 5.2 Two specimen apparatus
5.3 Single specimen apparatus
5.4 Plates
5.4.1 General
5.4.2 Plate material
5.4.3 Plate geometry
11 Figure 1 – General features of the two specimen and single specimen guarded hot plate apparatus
12 5.4.4 Plate emissivity
5.4.5 Plate temperature uniformity
5.4.6 Heating elements, principle and electrical insulation
5.4.7 Plate temperature sensors
5.5 Main heating unit
5.5.1 General
5.5.2 Metering area and guard to metering area gap
5.5.3 Imbalance across gap and position of imbalance sensors
13 5.6 Edge insulation and auxiliary guards
5.7 Cold plates
5.8 Thickness measurement system
5.9 Accuracy and repeatability
5.10 Uncertainty analysis and equipment performance checks
14 6 Test specimen
6.1 General
6.2 Selection and size
6.3 Specimen preparation
6.3.1 Conformity with product standards
6.3.2 All specimens except loose-fills
15 6.3.3 Loose-fill materials
7 Testing procedure
7.1 General
7.2 Conditioning
7.3 Measurements
7.3.1 Mass
16 7.3.2 Thickness and density
7.3.3 Temperature difference selection
7.3.4 Ambient conditions
7.3.5 Heat flow rate measurements
7.3.6 Temperature difference detection
17 7.3.7 Settling time and measurement interval
7.3.8 Final mass and thickness measurement
8 Calculations and test report
8.1 Density and mass changes
8.1.1 Densities
18 8.1.2 Mass changes
8.2 Heat transfer properties
19 9 Test report
21 Annex A (normative) Limits for equipment performance and test conditions
A.1 General
A.2 Accuracy and repeatability, stability, uniformity
22 A.3 Suggested apparatus sizes
A.4 Equipment design requirements
23 A.5 Acceptable specimen characteristics
24 A.6 Acceptable testing conditions

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BSI PD CEN/TS 15548-1:2014
$142.49