BS 8221-1:2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Code of practice for cleaning and surface repair of buildings Cleaning of natural stones, brick, terracotta and concrete
Hardcopy , PDF
30-06-2012
English
15-04-2000
Committees responsible
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Considerations affecting external cleaning decisions
5 Stonework
6 Clay and calcium silicate brickwork
7 Terracotta and faience
8 Concrete
9 Removal of specific deposits
10 Cleaning methods
11 Safety
12 Consolidations for porous building materials
Annex A (informative) Precautions for hand cleaning
Annex B (informative) Precautions for water cleaning
Annex C (informative) Precautions with abrasive cleaning
Annex D (informative) Further information on chemical
cleaning
Bibliography
Table 1 - Factors affecting choice of cleaning method
Table 2 - Geological groups of rocks and examples of building
materials
Table 3 - Types of sandstone and their potential resistance
to weathering and soiling
Table 4 - Sandstone matrices and their potential resistance
to weathering and soiling
Table 5 - Operating pressures
Table 6 - Hardness of abrasives
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