BS CP153-1(1969) : LATEST
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
WINDOWS AND ROOFLIGHTS - CLEANING AND SAFETY
07-31-1991
11-23-2012
Deals with glass varieties,but relevant also to a large extent for other glazing materials. Includes illustrations.
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