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BSI 23/30481205 DC:2023 Edition

BSI 23/30481205 DC:2023 Edition

$13.70

Draft BS EN 13381-7 Test methods for determining the contribution to the fire resistance of structural members – Part 7: Applied protection to timber members

Published By Publication Date Number of Pages
BSI 2023 92
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PDF Catalog

PDF Pages PDF Title
11 1 Scope
2 Normative references
12 3 Terms, definitions, symbols and units
3.1 Terms and definitions
15 3.2 Symbols and units
17 4 Test equipment
4.1 General
4.2 Furnace
4.3 Loading equipment
5 Test conditions
5.1 Test procedure
5.2 Support and restraint conditions
18 5.3 Loading conditions
19 6 Test specimens
6.1 General
6.2 Number
6.2.1 General
6.2.2 Fire protection system variations
6.3 Dimension of test specimens
20 6.4 Construction
6.4.1 General
6.4.2 Charring specimens
22 6.4.3 Large scale wall test specimen
6.4.4 Large scale floor test specimen
23 6.4.5 Large scale beam test specimen
6.4.6 Model scale test specimen
6.4.7 Application of the fire protection materials to the test specimen
6.4.7.1 Large scale wall and large scale floor test specimen
24 6.4.7.2 Large scale beam test specimen
6.4.7.3 Model scale test specimen
6.4.8 Insulating materials
6.4.8.1 Insulation material as part of the fire protection system
6.4.8.2 Insulation material as cavity insulation for large scale test specimens
6.5 Composition of the test specimen components
6.5.1 Timber
25 6.5.2 Fire protection system
6.6 Properties of test materials
6.7 Verification of the test specimen
26 7 Installation of the test specimen
7.1 Large scale wall test
7.2 Large scale floor test
7.3 Large scale beam test
7.4 Model scale test
7.5 Installation patterns
27 8 Conditioning of the test specimens
9 Application of instrumentation
9.1 General
9.2 Instrumentation for measurement of furnace temperature
9.2.1 General
9.2.2 Large scale wall test
9.2.3 Large scale floor test
9.2.4 Large scale beam test
28 9.2.5 Model scale test
9.3 Instrumentation for measurement of test specimen temperature
9.3.1 General
9.3.2 Charring specimen
9.3.3 Large scale wall test specimen
29 9.3.4 Large scale floor test specimen
9.3.5 Large scale beam test specimen
30 9.3.6 Model scale test specimen
9.4 Instrumentation for measurement of pressure
9.5 Instrumentation for measurement of deformation
9.6 Instrumentation for measurement of applied load
10 Test procedure
10.1 General
31 10.2 Furnace temperature and pressure
10.3 Application and control of load
10.4 Temperature of test specimen
10.5 Deformation
10.6 Observations
10.7 Termination test
11 Test results
11.1 Acceptability of test results
11.1.1 General
11.1.2 Charring specimen
32 11.1.3 Loaded members in Large scale tests
11.2 Presentation of test results
12 Test report
33 13 Assessment
13.1 General
34 13.2 Assessment of the start of charring
13.3 Assessment of the charring rate
35 13.4 Correction for stickability of the fire protection system
13.5 Assessment of failure time
13.5.1 General
13.5.2 Large scale wall test and large scale floor test
36 13.5.3 Large scale beam test
14 Report of the assessment
37 15 Limits of applicability of the results of the assessment
15.1 General
15.2 Limits of applicability of the assessment results
15.2.1 General
15.2.2 Thickness of fire protection material
15.2.3 Multiple layers
15.2.4 Board or panel size
15.2.5 Orientation of test
38 15.2.6 Timber
15.2.6.1 Timber species
15.2.6.2 Timber product
15.2.6.3 Timber grade
15.2.6.4 Timber widths or depths
15.2.7 Insulation materials
15.2.8 Fixtures and fittings
15.3 Additional limits of applicability of the assessment results for specific construction types
15.3.1 Walls and floors – type of construction
39 15.3.2 Beams and columns – type of construction
59 Annex A (normative)Model scale test
A.1 General
A.2 Test equipment, installation of the specimen and test load
A.3 End of the model scale test
62 Annex B (informative)Overview of available methods of EN 13381-7
B.1 General
B.2 Fire protection systems for intended use applied timber frame walls, timber beams and timber columns:
B.3 Fire protection systems for intended use applied on timber frame floors, timber frame walls, timber beams and timber columns:
63 B.4 Fire protection systems for intended use applied on timber beams and timber columns:
67 Annex C (normative)Measurement of properties of fire protection materials
C.1 Introduction
C.2 Thickness of fire protection materials
C.2.1 General
C.2.2 Board or slab/mat fire protection materials
C.2.3 Coatings with reactive and non-reactive fire protection materials and systems
C.2.3.1 General
68 C.2.3.2 Measuring positions for Fire Protection Materials
69 C.3 Density of applied fire protection materials
C.4 Moisture content of applied fire protection materials
71 Annex D (normative)Fixing of thermocouples to timber members and timber frame assemblies and routing of cables
D.1 General
D.2 Types of thermocouples
D.3 Fixing of thermocouples
D.3.1 General
D.3.2 Internal thermocouples
72 D.3.3 Thermocouples at the surface of the timber member
D.3.4 Thermocouples in the interlayer of the fire protection system and the cavity insulation
D.4 Routing of thermocouple wires
D.4.1 General
D.4.2 Internal thermocouples
73 D.5 Connection of thermocouples
D.6 Thermocouple failures
76 Annex E (informative)Calculation of load to be applied on the large scale test specimen
E.1 General
E.2 Example 1: Load calculation for a large scale wall test specimen
78 E.3 Example 2: Load calculation for the large scale beam test
79 Annex F (informative)Examples of assessment of fire protection system performance
F.1 General
F.2 Assessment of the start of charring behind the fire protection system
80 F.3 Assessment of the charring rate behind the fire protection system
81 F.4 Correction for the stickability of the fire protection system
82 F.5 The time of loss of stickability of the fire protection system
86 Annex G (normative)Test method to the smouldering fire or slow heating curve
G.1 Introduction
G.2 Test equipment
G.3 Test conditions
G.4 Test specimens
G.5 Installation of the test specimens
G.6 Conditioning of the test specimens
G.7 Application of instrumentation
87 G.8 Test procedure
G.9 Test results
G.10 Evaluation of the results
89 Annex H (informative)Calculation of the dimensions of the charring specimen dimensions and the model scale specimen
H.1 Introduction
H.2 Calculation of the thickness of the charring specimen
90 H.3 Calculation of the number or thermocouples
H.4 Calculation of the charring specimen length
H.5 Calculation of the charring specimen width
H.6 Calculation of the dimensions of the model scale test specimen

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