BS 5803-3-1985_1999

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BRITISH STANDARD BS5803-3:

1985

Incorporating

Amendment No. 1

Thermal insulation for

use in pitched roof

spaces in dwellings —

Part3: Specification for cellulose fibre

thermal insulation for application by

blowing

UDC699.86:692.42:677.46

BS 5803-3:1985

This British Standard, having

been prepared under the

directionof the Elements

andComponents (ofDiverse

Materials)for Buildings

Standards Committee, was

published underthe authority

ofthe Board ofBSI and

comesintoeffect on

28February1985

The following BSI references

relate to the work on this

standard:

Committee reference ECB/38

Draft for comment83/10119 DC

ISBN0 580 14244 2

Committees responsible for this

British Standard

The preparation of this British Standard was entrusted by the Elements

andComponents (of Diverse Materials) for Buildings Standards Committee

(ECB/-) to Technical Committee ECB/38 upon which the following bodies were

represented:

Chartered Institution of Building Services

Consumer Standards Advisory Committee of BSI

Department of the Environment (Building Research Establishment,

FireResearch Station)

Department of the Environment (Housing and Construction Industries)

Department of the Environment (Property Services Agency)

Eurisol (UK) (Association of Manufacturers of Mineral Fibre Insulation)

Greater London Council

Independent Waste Paper Processors’ Association

Institution of Building Control Officers

National Association of Loft Insulation Contractors

National Council of Building Materials Producers

Royal Institute of British Architects

Thermal Insulation Manufacturers’ Association

Amendments issued since publication

Amd. No. Date of issue Comments

5829 June 1989 Indicated by a sideline in the margin

BS5803-3:1985

Contents

Page

Committees responsible Inside front cover

Foreword ii

1Scope 1

2Definitions 1

3Composition and form 1

4General properties 1

5Thermal insulation properties 2

6Preparation of samples 2

7Marking 2

Appendix A Method for the measurement of the installed

thickness, coverage and density of cellulose fire insulation 3

Appendix B Method of test for corrosivity 3

Appendix C Determination of settlement at high humidity 7

Appendix D Determination of vibration settlement and settled density 8

Appendix E Effect of thermal insulation on domestic PVC sheathed

electrical cable 10

Appendix F Determination of thermal properties 11

Figure 1 — Plan of simulated loft area for the determination

of coverage and installed thickness 5

Figure 2 — Measuring device 6

Publications referred to Inside back cover

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摘要：

BS 5803-3-1985_1999 是英国标准中关于农业建筑屋顶用隔热材料（纤维素纤维隔热层）的规范，主要规定了安装、性能测试及质量要求。该标准于1985年首次发布，并在1999年进行了确认修订，适用于提升农业建筑热效率、节能控温及防火安全。内容涵盖材料密度、导热系数、厚度测量及防沉降性能测试方法，为设计师、施工方及监管机构提供技术依据，确保隔热层在长期使用中的稳定性和可靠性。此标准对老旧农业建筑改造和新建项目的合规性具有重要参考价值。

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BS 5803-3-1985_1999

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