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BS 874-2.1:1986

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Methods for determining thermal insulating properties. Tests for thermal conductivity and related properties Guarded hot-plate method

Available format(s)

Hardcopy , PDF

Superseded date

03-15-2001

Language(s)

English

Published date

11-28-1986

Foreword
Committees responsible
Method
0 Introduction
1 Scope
2 Definitions
3 Restrictions on the determination of thermal
    conductivity and resistivity
4 Principle
5 Laboratory environment
6 Apparatus
7 Test specimens
8 Procedure
9 Expression of results
10 Test report
Appendices
A Auxiliary edge guard for guarded hot-plates
B Description of composite materials
Figures
1 Guarded hot-plate apparatus
2 Typical guarded heater plate
3 Alternative cold plate designs
4 Alternative thermocouple and thermopile layouts in
    the guarded heater plate
5 Linear gradient edge guard

Absolute method for determining steady-state thermal transmission properties of insulating materials over the temperature range -20°C to 100°C.

Committee
B/540
DevelopmentNote
Supersedes BS 874(1983) (07/2004) Supersedes BS 874(1973) & 84/76476 DC. (12/2007)
DocumentType
Standard
Pages
20
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

BS 7008-1:1988 Acquisition and presentation of comparable data for basic properties of plastics. Method for single-point data
BS 6993-2:1990 Thermal and radiometric properties of glazing Method for direct measurement of U-value (thermal transmittance)
BS 874-3.2:1990 Methods for determining thermal insulating properties. Tests for thermal transmittance and conductance Calibrated hot-box method
BS 874:1973 Methods for determining thermal insulating properties with definitions of thermal insulating terms
DEFSTAN 02-804(PT2)/1(2000) : 2000 REQUIREMENTS FOR CORK THERMAL INSULATION MATERIAL - PART 2: CORK PRODUCTS CORK SLABS NON-FIRE RETARDED
BS 5970:1992 Code of practice for thermal insulation of pipework and equipment (in the temperature range -100°C to +870°C)
BS 4370-2:1993 Methods of test for rigid cellular materials Methods 7 to 9
BS 874-2.2:1988 Methods for determining thermal insulating properties. Tests for thermal conductivity and related properties Unguarded hot-plate method
BS 4046:1991 Specification for compressed straw building slabs
BS 874-3.1:1987 Methods for determining thermal insulating properties. Tests for thermal transmittance and conductance Guarded hot-box method
BS 4745:1990 Method for determination of thermal resistance of textiles
BS 5669-4:1989 Particleboard Specification for cement bonded particleboard
BS 5803-3:1985 Thermal insulation for use in pitched roof spaces in dwellings Specification for cellulose fibre thermal insulation for application by blowing
BS 903-1:1995 Physical testing of rubber Guide to the selection and use of methods of test for rubber
DEFSTAN 02-804(PT1)/1(2000) : 2000 REQUIREMENTS FOR CORK THERMAL INSULATION MATERIAL - PART 1: CORK PRODUCTS COMPOSITION CORK SHEET FIRE RETARDED
BS 5422:1990 Method for specifying thermal insulating materials on pipes, ductwork and equipment (in the temperature range -40°C to +700°C)

BS 874-1:1986 Methods for determining thermal insulating properties Introduction, definitions and principles of measurement

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